PROJECT: NE 68th Street Sidewalk CRP No. 372122 ...

Determination of NONSIGNIFICANCE Notice Date: May 11, 2020

Clark County Public Works 1300 Franklin St, Vancouver, Washington

Phone: 564.397.4944 www.clark.wa.gov

PROJECT: NE 68th Street Sidewalk

CRP No. 372122

Enclosed find a Determination of Non Significance (DNS) issued pursuant to State Environmental Policy Act (SEPA) Rules (Chapter 197-11, Washington Administrative Code). The enclosed review comments reflect evaluation of the environmental checklist by the lead agency as required by WAC 197-11-330(1)(a)(i). Written comments may be submitted on this determination within fifteen (15) days of its issuance, after which the DNS will be reconsidered in light of the comments received. Please address all correspondence to: Clark County Public Works Jennifer Taylor PO Box 9810 Vancouver, WA 98666-9810 [email protected]

DocuSign Envelope ID: 6AD5F7A2-D141-4536-8F73-8386FE8F42AE




NE 68th Street Sidewalk DISTRIBUTION LIST

US Army Corps of Engineers Cowlitz Indian Tribe Confederated Tribes & Bands of the Yakama Nation The Confederated Tribes of Grand Ronde Washington State Department of Fish & Wildlife Washington State Department of Ecology Washington State Department of Archaeology and Historic Preservation Clark County Community Development Clark County Conservation District Clark County Council Clark County Sheriff’s Office Clark County Fire Marshall City of Vancouver Port of Vancouver Fort Vancouver Regional Library SW Washington Health District Southwest Clean Air Agency Fire District 6 Vancouver Fire Vancouver School District Friends of Curtin Creek (postcard only) Properties within 500’ of project (postcard only) The Columbian The Reflector AT&T Century Link Clark Public Utilities – Water Clark Public Utilities – Electric Clark Regional Wastewater District Comcast Cable Services Northwest Natural





NE 68th Street Sidewalk DETERMINATION OF NON-SIGNIFICANCE

Description of Proposal: The project will add a sidewalk on Northeast 68th Street between Northeast Highway 99 and Northeast St Johns Road. The at-grade detached sidewalk within Clark County would consist of a 3.5 to 5.5-foot wide drain rock strip (roadway separation strip) and a 6-foot wide pervious concrete sidewalk. A 2-foot wide concrete valley gutter, a bike buffer; 6-foot wide pervious concrete bike lane; curb and gutter; 4-foot wide planter strip; and 6-foot wide pervious concrete sidewalk will be constructed within City of Vancouver limits. This project will impact 0.087 acres of wetland and 0.076 of wetland buffer and will be mitigated at the Terrace Mitigation Bank. Impacts and mitigation occur within the City of Vancouver.

Proponent: Clark County Public Works; City of Vancouver

Location of proposal, including street address, if any: Northeast 68th Street connects Northeast Highway 99 at the west end and Northeast St Johns Road at the east end. The corridor is divided between two separate jurisdictions: Clark County from Northeast Highway 99 to the City of Vancouver limits just east of Northeast 28th Avenue (approximately 1.0 miles), and the City of Vancouver from the city limits to Northeast St Johns Road (approximately 0.3 miles). The project is within Sections 10, 11, and 12 of T2N, R1E, Willamette Meridian. Lead Agency: Clark County Public Works The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 43.21C.030(2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. The lead agency has determined that the requirements for environmental analysis, protection, and mitigation measures have been adequately addressed in the development regulations and comprehensive plan adopted under chapter 36.70A RCW, and in other applicable local, state, or federal laws or rules, as provided by RCW 43.21C.240 and WAC 197-11-158. Our agency will not require any additional mitigation measures under SEPA. This DNS is issued under WAC 197-11-340(2); the lead agency will not act on this proposal for 15 days from the date below. Comments must be submitted by May 27, 2020. Responsible Official: Tom Grange, P.E. Position/title: Engineering & Construction Division Manager Address: Clark County Public Works PO Box 9810 Vancouver, WA 98666-9810 Date: ____________________ Signature:_________________________________ The contact person for any questions is Jennifer Taylor, 564-397-4227, [email protected].


5/7/2020

http://www.lexis.com/research/buttonTFLink?_m=4ab62e1b1aa4d7e4e27c2a748d1b4851&_xfercite=%3ccite%20cc%3d%22USA%22%3e%3c%21%5bCDATA%5bWAC%20%a7%20197-11-158%26nbsp%3b%282006%29%5d%5d%3e%3c%2fcite%3e&_butType=4&_butStat=0&_butNum=1&_butInline=1&_butinfo=WACODE%2043.21C.240&_fmtstr=FULL&docnum=1&_startdoc=1&wchp=dGLbVzW-zSkAt&_md5=1d636f311498ad951defe783677a2ecb

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NE 68th Street Sidewalk—

NE Highway 99 to NE St Johns Road

Clark County Project CRP No. 372122 City of Vancouver Project No. 072462

SEPA Environmental Checklist

Submitted By:

Clark County Public Works

PO Box 9810

Vancouver, Washington 98666

February 12, 2020


NE 68th Street Sidewalk SEPA Environmental Checklist (WAC 197-11-960) Page 2 of 26

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A. Background [help]

1. Name of proposed project, if applicable: [help]

NE 68th Street Sidewalk—NE Highway 99 to NE St Johns Road

2. Name of applicant: [help]

Clark County Public Works

3. Address and phone number of applicant and contact person: [help]

Jennifer Taylor Clark County Public Works PO Box 9810 Vancouver, Washington 98666 (564) [email protected]

4. Date checklist prepared: [help]

February 12, 2020

5. Agency requesting checklist: [help]

Public Works Department, Clark County, Washington

6. Proposed timing or schedule (including phasing, if applicable): [help]

The design and permitting are ongoing. Obligation of funds is scheduled for March 2021, with advertising, award, contracting, and construction to follow. 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. [help]

There are no plans for future additions, expansion, or further activity related to this proposal in the foreseeable future.

8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. [help]

Columbia West Engineering, Inc. 2019. Geotechnical Site Investigation. NE 68th Street Sidewalk Improvements, Vancouver, Washington. Prepared for HHPR, Vancouver, Washington. April 4, 2019.


http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Background










Global Transportation Engineering. 2019. NE 68th Street Sidewalk Infill – Pedestrian Crossing Analysis. Prepared for Clark County, Vancouver, Washington. March 27, 2019.

Harper Houf Peterson Righellis Inc. 2019. Wetland Report. NE 68th Street Sidewalk—NE Highway 99 to NE St Johns Road. Prepared for Clark County and City of Vancouver, Washington. October 7, 2019.

Harper Houf Peterson Righellis Inc. 2019. 75% Design Report for NE 68th Street Sidewalk Project. (Highway 99 to St Johns Road). Prepared for Clark County, Vancouver, Washington. November 20, 2019. Harper Houf Peterson Righellis Inc. 2019. 68th Street Sidewalk. Preliminary Stormwater Report. Prepared for City of Vancouver, Vancouver, Washington. September 10, 2019. Harper Houf Peterson and Righellis Inc. (HHPR). 2019. Technical Memorandum NE 68th Street Sidewalk – Clark County Critical Areas Report. Prepared for Clark County, Washington. October 28, 2019. Harper Houf Peterson Righellis Inc. 2020. 75% Design Report for NE 68th Street Sidewalk Project. (Highway 99 to St Johns Road). Prepared for City of Vancouver, Vancouver, Washington. January 24, 2020. Harper Houf Peterson Righellis Inc. 2020. 68th Street Project. Preliminary Stormwater Report 75% Plan Set. Prepared for City of Vancouver, Vancouver, Washington. January 24, 2020. Harper Houf Peterson Righellis Inc. 2020. Technical Memorandum NE 68th Street Sidewalk – Low Level Hazardous Waste and Materials. Prepared for Clark County, Vancouver, Washington. February 4, 2020. Harper Houf Peterson and Righellis Inc. (HHPR). 2020. Technical Memorandum NE 68th Street Sidewalk – City of Vancouver Critical Areas Report. Prepared for City of Vancouver, Washington. February 11, 2020.

Harper Houf Peterson Righellis Inc. 2020. Wetland Mitigation Bank Use Plan. NE 68th Street Sidewalk—NE Highway 99 to NE St Johns Road. Prepared for City of Vancouver, Washington. February 11, 2020.

Harper Houf Peterson Righellis Inc. 2020. NE 68th Street Sidewalk NEPA Categorical Exclusion Documentation Form [and supplemental information]. Prepared for Clark County, Washington. February 11, 2020.

Hotze, Karla, Samantha Gordon, and Andrea Blaser. 2020. Cultural Resource Survey for the NE 68th Street Sidewalk: NE Hwy 99 to NE St. Johns Road, Unincorporated Clark County and City of Vancouver, Washington. Archaeological Investigations Northwest, Inc. Prepared for Harper Houf Peterson Righellis Inc., Vancouver, Washington. February 7, 2020.

Joint Aquatic Resources Permit Application (JARPA) for a Clean Water Act Section 404 Permit /Section 401 Water Quality Certification. Anticipated submittal March 2020 to US Army Corps of Engineers (USACE) – Seattle District.

9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. [help] There are no known pending approvals of other proposals that will directly affect this project.




10. List any government approvals or permits that will be needed for your proposal, ifknown. [help]

• City of Vancouver Wetland Permit

• US Army Corps of Engineers (USACE) Clean Water Act Section 404 Nationwide Permit and401 Water Quality Certification

• US Federal Highway Administration (FHWA) NEPA Categorical Exemption approval

11. Give brief, complete description of your proposal, including the proposed uses andthe size of the project and site. There are several questions later in this checklist thatask you to describe certain aspects of your proposal. You do not need to repeat thoseanswers on this page. (Lead agencies may modify this form to include additionalspecific information on project description.) [help]

NE 68th Street is a highly utilized two-lane roadway that connects two arterials: NE Highway 99 and NE St Johns Road. The corridor is divided between two separate jurisdictions: Clark County from NE Highway 99 to the City of Vancouver limits just east of NE 28th Avenue (approximately 1.0 miles), and the City of Vancouver from the city limits to NE St Johns Road (approximately 0.3 miles). NE 68th Street corridor serves a densely populated residential neighborhood (both well-established older homes and newer subdivisions), public spaces, and several commercial businesses, and has an average daily traffic (ADT) of 3,288 vehicles (data collected October 23, 2018). The roadway speed is posted at 35 mph and vehicles travel at an 85th percentile speed between 39 to 43 mph. The roadway has two 11-foot wide travel lanes with very narrow shoulders, limited segments of sidewalk, roadway running slopes greater than 12 percent at the west end, and open ditches at both ends of the project. In some locations, the roadway is 10 to 15 feet above or below the abutting parcels. The segments of sidewalk are mostly frontage improvements from new developments. The lack of sidewalk creates a potential conflict between vehicles and pedestrians. The project will add a 6-foot wide sidewalk along NE 68th Street between the two arterials, minimize impacts to existing properties, and provide cost effective solutions for stormwater facilities. Within Clark County, the at-grade detached sidewalk is anticipated to consist of a 3.5 to 5.5-foot wide drain rock strip (roadway separation strip) and a 6-foot wide pervious concrete sidewalk. Within the City of Vancouver, a more typical shoulder-widening street section is anticipated: a 2-foot wide concrete valley gutter, a bike buffer; 6-foot wide pervious concrete bike lane; curb and gutter; 4-foot wide planter strip; and 6-foot wide pervious concrete sidewalk.

12. Location of the proposal. Give sufficient information for a person to understand theprecise location of your proposed project, including a street address, if any, and section,township, and range, if known. If a proposal would occur over a range of area, providethe range or boundaries of the site(s). Provide a legal description, site plan, vicinity map,and topographic map, if reasonably available. While you should submit any plansrequired by the agency, you are not required to duplicate maps or detailed planssubmitted with any permit applications related to this checklist. [help]

NE 68th Street connects NE Highway 99 at the west end and NE St Johns Road at the east end. The project area includes right-of-way along NE 68th Street and some abutting private property along the corridor. The project is within Sections 10, 11, and 12 of T2N, R1E, Willamette Meridian.






B. ENVIRONMENTAL ELEMENTS

1. Earth [help] a. General description of the site: [help]Flat, rolling, hilly, steep slopes, mountainous, other _____________ b. What is the steepest slope on the site (approximate percent slope)? [help]

The steepest slopes on the site (not associated with ditches along the street) are the engineered side slopes of the existing road prism (both cuts and fills). The steepest slopes are in the vicinity of NE 14th Avenue, the maximum (based on Clark County topographical survey of the project site) being approximately 90% at the cut slope by the Clark Public Utilities water tank.

c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,muck)? If you know the classification of agricultural soils, specify them and note anyagricultural land of long-term commercial significance and whether the proposalresults in removing any of these soils. [help]

The Clark County soil survey (USDA NRCS 2019) maps most of the corridor as Hillsboro soils: Hillsboro silt loam, 0 to 3% slopes (HoA); Hillsboro silt loam, 3 to 8% slopes (HoB); Hillsboro loam, 0 to 3% slopes (HlA); Hillsboro loam, 3 to 8% slopes (HlB); and Hillsboro loam, 8 to 15% slopes (HlC). The topographical rise at the western end of the corridor is mapped as Wind River sandy loam, 8 to 20% slopes. The eastern third of the corridor, on the south side of NE 68th Street, is mapped Odne silt loam, 0 to 5% slopes (OdB) and McBee silt loam coarse variant, 0 to 3% slopes (MlA). Hillsboro soils are well drained and Wind River soils are somewhat excessively drained. Both of these deep soils are on alluvial terraces. Odne soils are poorly drained and McBee variants are somewhat poorly drained. Both of these deep soils occur in drainageways and depressions on alluvial terraces. The soil map units considered prime farmland are: Hillsboro map units with slopes of 8% or less (HoA, HoB, HlA, HlB) and McBee variant (MlA), if drained. Except for the Heritage Farm, which is on the north side of NE 68th Street, the prime farmland soils along the project alignment are in residential development or churches. Thus, no agricultural land of long-term significance will be removed as a result of this project. USDA Natural Resources Conservation Service (NRCS). 2019. URL: http://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx Accessed August 30, 2019.

d. Are there surface indications or history of unstable soils in the immediate vicinity? Ifso, describe. [help]

The site and surrounding area is not mapped as having areas of historic or active landslide, potential instability, or older landslide debris. None were observed during field reconnaissance (HHPR 2020, 2019). Harper Houf Peterson and Righellis Inc. (HHPR). 2020. Technical Memorandum NE 68th Street Sidewalk – City of Vancouver Critical Areas Report. Prepared for City of Vancouver, Washington. February 11, 2020.

Harper Houf Peterson and Righellis Inc. (HHPR). 2019. Technical Memorandum NE 68th Street Sidewalk – Clark County Critical Areas Report. Prepared for Clark County, Washington. October 28, 2019.

e. Describe the purpose, type, total area, and approximate quantities and total affectedarea of any filling, excavation, and grading proposed. Indicate source of fill. [help]


http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Earth







Filling, excavation, and grading is required to construct the sidewalk and associated retaining walls:

• Filling is estimated to be approximately 54,300 sq ft and 700 cu yds.

• Excavation is estimated to be approximately 24,200 sq ft and 4,000 cu yds.

• Grading is estimated to be approximately 56,900 sq ft and 4,600 cu yds.All fill material will be obtained from a permitted facility.

f. Could erosion occur as a result of clearing, construction, or use? If so, generallydescribe. [help]

The potential for localized erosion will be associated with temporary excavation, stockpiling, and construction of the sidewalk and retaining walls. The chance of erosion will be greatest during a period of extended or intense rainfall.

g. About what percent of the site will be covered with impervious surfaces after projectconstruction (for example, asphalt or buildings)? [help]

The area of impervious surface to be covered after project construction is approximately 5.75 acres. There is 5.59 acres of existing impervious surface and the project will be adding 0.16 acres of impervious surface (an increase of 2.8%).

h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:[help]

Proposed measures to reduce and control erosion, or other impacts to the earth, will be identified in a Temporary Erosion and Sediment Control (TESC) plan, to be included in the Stormwater Pollution Prevention Plan (SWPPP). The TESC will include Best Management Practices (BMPs) that will be employed throughout the project to minimize such impacts. Specific BMPs related to erosion will include: installation of silt fence, minimizing the area of vegetation disturbance, guidelines for vegetation preservation, and material stockpiling/staging. Impacts from hazardous materials in the project corridor will be addressed through standard minimization measures and BMPs such as:

• All equipment to be used for construction activities will be cleaned and inspected prior to arrivingat the project site, to ensure no potentially hazardous materials are exposed, no leaks arepresent, and the equipment is functioning properly;

• Construction equipment will be inspected daily to ensure there are no leaks of hydraulic fluids,fuel, lubricants, or other petroleum products; and

• Should a leak be detected on equipment used for the project, the equipment will be immediatelyremoved from the area and not used again until adequately repaired.

2. Air a. What types of emissions to the air would result from the proposal duringconstruction, operation, and maintenance when the project is completed? If any,generally describe and give approximate quantities if known. [help]

The only emissions will be from equipment used during construction, such as below.





http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Air


Exhaust emissions and dust may result from:

• Excavators and backhoes• Pickup trucks• Dump trucks• Front-end loaders• Concrete mixer trucks• Compactors (ground)• Pavers• Air compressors

b. Are there any off-site sources of emissions or odor that may affect your proposal? Ifso, generally describe. [help]

No off-site sources of emissions or odor will affect the proposal.

c. Proposed measures to reduce or control emissions or other impacts to air, if any:[help]

This project will comply with all federal, state, and local pollution control standards. Because no long-term adverse air quality effects are expected from the project, no long-term mitigation measures will be required. For short-term construction impacts, contractors are required to take reasonable precautions to avoid dust emissions, along with other construction-related air quality mitigation measures to reduce the potential for air quality impacts during construction, e.g., avoid unnecessary idling.

3. Water [help] a. Surface Water:

1) Is there any surface water body on or in the immediate vicinity of the site(including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? Ifyes, describe type and provide names. If appropriate, state what stream or river itflows into. [help]

The only surface water body on and immediately adjacent to the corridor is a wetland at the east end of the corridor (HHPR 2019). Water from this wetland flows into a Clark County stormwater ditch and then to Cold Creek, which discharges to Burnt Bridge Creek. HHPR. 2019. Wetland Report. NE 68th Street Sidewalk — NE Highway 99 to NE St Johns Road. Prepared for Clark County and City of Vancouver, Washington. October 7, 2019.

2) Will the project require any work over, in, or adjacent to (within 200 feet) thedescribed waters? If yes, please describe and attach available plans. [help]

The project will fill 0.087 acres of a wetland immediately south of NE 68th Street (Wetland A) by construction of retaining walls and the sidewalk facility. This is depicted on 75% City plan sheets numbered C06 through C08 (Appendix C) and in the JARPA.




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Water




3) Estimate the amount of fill and dredge material that would be placed in or removedfrom surface water or wetlands and indicate the area of the site that would beaffected. Indicate the source of fill material. [help]

Approximately 400 cubic yards of fill will be placed in and 130 cubic yards of soil will be excavated from Wetland A. The fill material will be obtained from a permitted facility. No dredging is required for this project.

4) Will the proposal require surface water withdrawals or diversions? Give generaldescription, purpose, and approximate quantities if known. [help]

No surface water withdrawal or diversions will occur.

5) Does the proposal lie within a 100-year floodplain? If so, note location on the siteplan. [help]

No. The project corridor does not lie in a 100-year floodplain (FEMA 2012). FEMA. 2012. Flood Insurance Rate Map (FIRM) Clark County, Washington and Unincorporated Areas. Panels 366 and 367 of 600. Map Numbers 53011C0366D and 53011C0367D. Effective date September 5, 2012.

6) Does the proposal involve any discharges of waste materials to surface waters? Ifso, describe the type of waste and anticipated volume of discharge. [help]

No. The project does not involve discharge of waste materials to surface waters.

b. Ground Water: 1) Will groundwater be withdrawn from a well for drinking water or other purposes? If

so, give a general description of the well, proposed uses and approximatequantities withdrawn from the well. Will water be discharged to groundwater? Givegeneral description, purpose, and approximate quantities if known. [help]

No groundwater withdrawals or discharges to groundwater will occur as a result of this project.

2) Describe waste material that will be discharged into the ground from septic tanksor other sources, if any (for example: Domestic sewage; industrial, containing thefollowing chemicals. . . ; agricultural; etc.). Describe the general size of thesystem, the number of such systems, the number of houses to be served (ifapplicable), or the number of animals or humans the system(s) are expected toserve. [help]

No waste material will be discharged into the ground from septic tanks or other sources.

c. Water runoff (including stormwater):









1) Describe the source of runoff (including storm water) and method of collectionand disposal, if any (include quantities, if known). Where will this water flow?Will this water flow into other waters? If so, describe. [help]

Clark County Within Clark County, the at-grade detached sidewalk will consist of a 3.5 to 5.5-foot wide drain rock strip (roadway separation strip) with a 6-foot wide pervious concrete sidewalk. The runoff from the roadway will flow into the drain rock strip and pervious concrete sidewalk. The pervious concrete sidewalk will infiltrate 100% of the runoff from the new sidewalk, while slowing runoff from the roadway and allowing the unconcentrated flow to move unimpeded, maintaining or reducing the existing flow regime. The design sections with a fill wall and cut wall are shown below.

HHPR. 2019. 75% Design Report for NE 68th Street Sidewalk Project (Highway 99 to St Johns Road). Prepared for Clark County, Washington. November 20, 2019.




City of Vancouver Within the city section, a more typical shoulder-widening street section is planned: a 2-foot wide concrete valley gutter, a bike buffer; 6-foot wide pervious concrete bike lane; curb and gutter; 4-foot wide planter strip; and 6-foot wide pervious concrete sidewalk. Runoff from the roadway will be collected in catch basins within the valley gutter and conveyed underground to the open regional stormwater ditch. All of the runoff from the new bike lane and new sidewalk will be infiltrated through the pervious concrete. Water quality treatment will be accomplished by infiltration through the existing soil beneath the pervious concrete. The project will infiltrate the runoff from the new bike lane and new sidewalk with the remainder flowing into the public stormwater system.

Harper Houf Peterson Righellis Inc. 2020a. 75% Design Report for NE 68th Street Sidewalk Project. (Highway 99 to St Johns Road). Prepared for City of Vancouver, Vancouver, Washington. January 24, 2020.

Harper Houf Peterson Righellis Inc. 2020b. 68th Street Project. Preliminary Stormwater Report 75% Plan Set. Prepared for City of Vancouver, Vancouver, Washington. January 24, 2020.

2) Could waste materials enter ground or surface waters? If so, generally describe.[help]

Waste materials associated with the use, storage, and maintenance of construction equipment (e.g., leaks or spills of fuel, hydraulic fluids, lubricants, and other chemicals from storage containers or machinery), and equipment wash water could enter groundwater through infiltration or surface waters through stormwater runoff. However, BMPs will be implemented to prevent and minimize such releases.




3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of thesite? If so, describe. [help]

No.

d. Proposed measures to reduce or control surface, ground, and runoff water, anddrainage pattern impacts, if any: [help]

Proposed measures to reduce and control erosion, or other impacts to water, will be outlined in a TESC. The TESC will include BMPs that will be employed throughout the project to minimize impacts. Specific BMPs related to erosion will include the installation of silt and sediment control measures. Additional guidelines will govern vegetation preservation, protective fencing, concrete handling, and material stockpiling/staging. A Spill Prevention, Control, and Countermeasure (SPCC) Plan will identify measures and BMPs for the protection of human health and the environment from spills and releases of hazardous materials (dangerous waste, problem waste, petroleum products, and hazardous substances). Impacts from hazardous materials will be addressed through standard minimization measures and BMPs such as:

• All equipment to be used for construction activities will be cleaned and inspected prior to arrivingat the project site, to ensure no potentially hazardous materials are exposed, no leaks arepresent, and the equipment is functioning properly;

• Construction equipment will be inspected daily to ensure there are no leaks of hydraulic fluids,fuel, lubricants, or other petroleum products; and

• Should a leak be detected on equipment used for the project, the equipment will be immediatelyremoved from the area and not used again until adequately repaired.

4. Plants [help] a. Check the types of vegetation found on the site: [help]

_x__deciduous tree: alder, maple, aspen, other (ash, white oak) _x evergreen tree: fir, cedar, pine, other _x__shrubs _x__grass ____pasture ____crop or grain ____orchards, vineyards or other permanent crops __x wet soil plants: cattail, buttercup, bulrush, skunk cabbage, other ____water plants: water lily, eelgrass, milfoil, other ____other types of vegetation

b. What kind and amount of vegetation will be removed or altered? [help]

As expected for a project along a residential corridor, most of the vegetation to be removed is associated with residential lawn or landscaped areas (typically non-native shrubs, trees, perennials, and annuals). Woody species include arborvitae (Thuja plicata), maples (Acer spp.), cherries and plums (Prunus spp.), laurels (such as Prunus laurocerasus), boxwoods (Buxus spp.), rhododendrons




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Plants




and azaleas (Rhododendron spp.), and Camellia species. Areas of English ivy (Hedera helix), bark-dust, gravel, and short decorative rock walks are included in landscaped areas. It is estimated that 0.6 acres of lawn or landscaped areas will be removed.

There are a few small areas of scrub shrub vegetation along the corridor and some will be impacted (approximately 0.3 acres). The species community at these locations varies, for example:

• Roadside areas east of the BPA power line is predominately beaked hazelnut (Corylus cornuta),English holly (Ilex aquifolium), and cherry plum (Prunus cerasifera) with Pacific blackberry(Rubus ursinus) and English ivy in the understory.

• Immediately west of the Creekside Meadows Apartment are several narrow strips of landbetween the parking lot, roadside ditch, and access road that contains relatively undisturbedvegetation. The areas have a canopy of small diameter Oregon ash (Fraxinus latifolia), Oregonwhite oak (Quercus garryana), English hawthorn (Crataegus monogyna), and English holly, andan understory dominated by Western swordfern (Polystichum munitum), Pacific blackberry, andcommon snowberry (Symphoricarpos albus), spurge laurel (Daphne laureola), and bracken fern(Pteridium aquilinum).

• Near NE St Johns Road (City jurisdiction), there is a small clump of shrubs and small trees(Sitka willow [Salix sitchensis], Himalayan blackberry, and Oregon crabapple [Malus fusca]).

At the eastern end of corridor (City jurisdiction), 0.087 acres of emergent wetland (Wetland A) will be removed. The west end is dominated by sedges (woolly sedge [Carex pellita], oval sedge [Carex leporina], and taper-fruit sedge [Carex leptopoda]). Common grasses and herbs include: meadow foxtail (Alopecurus pratensis), colonial bentgrass (Agrostis capillaris), reed canarygrass (Phalaris arundinacea), meadow buttercup (Ranunculus acris), and common dandelion (Taraxacum officinale). The east end of the wetland has a similar species assemblage, but with a higher percentage of grasses and herbs.

Most native trees to be removed are in Clark County are Western red cedar (Thuja plicata): three in the 6 to 13 inch size class and seven in the 24 to 48 inch size class. Other native species to be removed are: two small (8 and 6 inches at 4.5 feet above the ground surface [dbh]) Oregon ash (Fraxinus latifolia), two large multi-stemmed bigleaf maple (Acer macrophyllum), with stems approximately 18 to 20 inches dbh; and one large Douglas fir (Pseudotsuga menziesii) of approximately 60 inches dbh. The remaining trees are non-native species: a small multi-stemmed cherry, a multi-stemmed maple, a horse-chestnut (Aesculus hippocastanum), a sweet gum (Liquidambar styraciflua), and a collection of ten Lombardy poplar (Populus nigra ‘Italica’) in the 6 to 10 inch class.

In the City of Vancouver, 14 small Oregon ash trees (6 to 8 inches dbh) will be removed from the gravel parking lot west of the Creekside Meadows Apartment complex. Two Oregon white oak trees (24 and 26 inches dbh) at the eastern end (City jurisdiction) will also be removed.

c. List threatened and endangered species known to be on or near the site. [help]

No Endangered Species Act (ESA) listed plant species or associated habitats are known to occur within the project site and none were observed during site visits. An ESA list of plant species potentially affected by activities at the project site, obtained from the USFWS IPaC service (2020), identified two federally-listed plant species: golden paintbrush (Castilleja levisecta, federally-listed Threatened, state-listed Endangered) and water howellia (Howellia aquatilis, federally- and state-listed Threatened). Golden paintbrush occurs in upland prairies, on generally flat grasslands, including some characterized by mounded topography. All extant populations are located in the Puget Sound Lowlands (Caplow 2004). In Clark County, water howellia occurs “in a mosaic of wetlands and Oregon ash [Fraxinus latifolia] and Oregon white oak communities in the floodplain of the




Columbia River” (USFWS 2019). No suitable habitat for either species is present in the vicinity of the project site. Caplow, F. 2004. Reintroduction Plan for Golden Paintbrush (Castilleja levisecta). Washington Natural Heritage Program, Washington Department of Natural Resources. Olympia, Washington. Prepared for US Fish and Wildlife Service.

US Fish and Wildlife Service (USFWS). 2020. IPaC [Information for Planning and Consultation]. Official Species List. URL http://ecos.fws.gov/ipac/ February 7, 2020. US Fish and Wildlife Service (USFWS). 2019. Species Fact Sheet, Water Howellia, Howellia aquatilis.

d. Proposed landscaping, use of native plants, or other measures to preserve orenhance vegetation on the site, if any: [help]

The project will use retaining walls rather than fill slopes in the vicinity of Wetland A, at the east end of the corridor. This approach reduced the amount of wetland fill by approximately 900 square feet, approximately 19%. The use of walls versus fill slopes reduced the impact to native wetland vegetation and associated buffers.

e. List all noxious weeds and invasive species known to be on or near the site. [help]

The following plant species observed in the project corridor are on the 2019 Washington State noxious weed list (Washington State Noxious Weed Control Board 2019) as Class C weeds and thus noxious weeds: English Hawthorn (Crataegus monogyna), Himalayan blackberry (Rubus armeniacus), reed canarygrass (Phalaris arundinacea), Canada thistle (Cirsium arvense), Queen Anne’s lace (Daucus carota), and English ivy (Hedera spp.). Spurge laurel (Daphne laureola) was the single Class B weed observed. No Class A weeds were observed. Washington State Noxious Weed Control Board. 2019. 2019 Washington State Noxious Weed List. https://www.nwcb.wa.gov/pdfs/2019-State-Weed-List_Common_Name-8.5x11.pdf. Accessed June 17, 2019.

5. Animals [help] a. List any birds and other animals which have been observed on or near the site or are

known to be on or near the site. [help]

Examples include: birds: hawk, heron, eagle, songbirds, other: crows mammals: deer, bear, elk, beaver, other: rabbits fish: bass, salmon, trout, herring, shellfish, other

Wildlife species that could be near the project site include those typically habituated to human presence, such as small mammals (e.g., raccoons, opossums, rabbits, squirrels, shrews, mice), coyotes, deer, and passerine birds. Raptors that are utilize urban habitats, such as Cooper’s hawk (Accipiter cooperii) and red-tailed hawk (Buteo jamaicensis), likely use open fields and parks for foraging.

b. List any threatened and endangered species known to be on or near the site. [help]

ESA Fish

An ESA list of species potentially affected by activities at the project site, obtained from USFWS IPaC (2020), identified one federally-listed fish species: bull trout (Salvelinus confluentus, federally Endangered). However, there are no rivers or streams along the project corridor. The closest stream, Cold Creek, is approximately 820 feet south and will not be impacted by the project. SalmonScape (WDFW 2020) does not identify bull trout in either Cold Creek or Burnt Bridge Creek. The closest ESA-




http://www.ecy.wa.gov/programs/sea/sepa/apguide/EnvChecklistGuidance.html#Animals

http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Animals


listed fish species is coho (Oncorhynchus kisutch) in Cold Creek west of the I-5 freeway, near the confluence with Burnt Bridge Creek, more than 3000 feet southwest of the project corridor (WDFW 2020). In addition, the closest designated critical habitat for fish is Burnt Bridge Creek, more than 3000 feet downstream of the project, which is critical habitat for lower Columbia River coho (NOAA Fisheries 2016). Therefore, the project will not impact fish, critical habitat, or Essential Fish Habitat (EFH).

ESA Wildlife

No ESA-listed wildlife species or associated habitats are known to occur within the project site and none were observed during site visits.

The USFWS IPaC list (2020) identified three federally-listed wildlife species: gray wolf (Canis lupus, Western Distinct Population Segment, federally Proposed Endangered, state-listed Endangered), streaked horned lark (Eremophila alpestris strigata, federally-listed Threatened and state-listed Endangered), and Western yellow-billed cuckoo (Coccyzus americanus, federally-listed Threatened and state-listed Endangered). No critical habitat has been designated for the gray wolf and the project is outside critical habitat for the two bird species.

None of these species is mapped by WDFW PHS (2019) within 2 miles of the site. Additionally, there is not habitat in the project vicinity suitable to support these species. The project site and vicinity are too urbanized to provide suitable habitat for gray wolves. Western yellow-billed cuckoos require relatively large (>50 acres) and contiguous patches of riparian habitat for nesting; typically cottonwood-willow forests (Populus – Salix spp.) (USFWS 2014). Streaked horned larks, which nest and winter in open fields, including airports and abandoned agricultural fields, utilize larger expanses (typically larger than 300 acres) that are bare or sparsely vegetated (generally 16 percent or more bare ground) (USFWS 2013a, b). Open fields adjacent to the project site are present at the 78th Street Heritage Farm and the Bonneville Power Administration (BPA) right-of-way but both are less than 100 acres. Both areas also have thick grass cover and likely lack sufficient bare ground.

NOAA Fisheries. 2016. Final Critical Habitat Lower Columbia River Coho Salmon. Map.

US Fish and Wildlife Service (USFWS). 2020. IPaC [Information for Planning and Consultation]. Official Species List. URL http://ecos.fws.gov/ipac/ February 7, 2020.

US Fish and Wildlife Service (USFWS). 2014. Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Western Distinct Population Segment of the Yellow-billed Cuckoo; Proposed Rule. Federal Register 79:48548-48652. August 15, 2014.

US Fish and Wildlife Service (USFWS). 2013a. Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Taylor’s Checkerspot Butterfly and Streaked Horned Lark. Federal Register 78: 61506-61589. October 3, 2013.

US Fish and Wildlife Service (USFWS). 2013b. Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for Taylor’s Checkerspot Butterfly and Threatened Status Streaked Horned Lark. Federal Register 61452, 78:192, October 3, 2013.

Washington Department of Fish and Wildlife (WDFW). 2019. Priority Habitat and Species on the Web. Olympia, Washington. URL http://apps.wdfw.wa.gov/phsontheweb. Accessed August 21, 2019.

Washington Department of Fish and Wildlife (WDFW). 2020. SalmonScape. URL http://apps.wdfw.wa.gov/salmonscape/map.html. Accessed February 5, 2020.

c. Is the site part of a migration route? If so, explain. [help]

The site is along the Pacific Flyway, which hosts migrating bird species.

d. Proposed measures to preserve or enhance wildlife, if any: [help]

The minimization of wetland fill discussed in section 4.d. also reduced the loss of potential wildlife





habitat.

e. List any invasive animal species known to be on or near the site. [help]

None of the top 50 priority species (Washington State Recreation and Conservation Office 2019) were observed during any site visit. Invasive animal species known to occur in this urban area include Eastern gray squirrel (Sciurus carolinensis), Eastern fox squirrel (Sciurus niger), and European starlings (Sturnus vulgaris). Washington State Recreation and Conservation Office. Washington Invasive Species Council. 2019. https://invasivespecies.wa.gov/priorities.shtml. Accessed June 17, 2019.

6. Energy and Natural Resources [help] a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet

the completed project's energy needs? Describe whether it will be used for heating,manufacturing, etc. [help]

During construction, the project’s energy needs will include fuel for construction equipment. After construction, maintenance will be required throughout the serviceable life of the sidewalk. Maintenance staff will likely be transported to the project site in vehicles powered by petroleum, electricity, natural gas, or other energy source.

b. Would your project affect the potential use of solar energy by adjacent properties?If so, generally describe. [help]

The project will not affect the potential use of solar energy by adjacent properties.

c. What kinds of energy conservation features are included in the plans of thisproposal? List other proposed measures to reduce or control energy impacts, if any:[help]

Conventional means, methods, and equipment (e.g., petroleum powered) will be used to construct the project elements. Due to the scale of the various project elements, cost-effective, extraordinary energy-saving measures are limited. However, ordinary measures, such as not allowing equipment to idle for extensive periods, will be specified and/or implemented as practical.

7. Environmental Health [help] a. Are there any environmental health hazards, including exposure to toxic chemicals,

risk of fire and explosion, spill, or hazardous waste, that could occur as a result of thisproposal? If so, describe. [help]

1) Describe any known or possible contamination at the site from present or pastuses. [help]

The Washington Department of Ecology (Ecology) lists three cleanup sites along the NE 68th Street corridor (HHPR 2020):



http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#EnergyNaturalResources




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#EnvironmentalHealth




• Jumbo Car Wash and Gas – Leaking Underground Storage Tank (LUST) and UndergroundStorage Tank (UST) (Ecology Facility/Site ID 96316853). The Jumbo Car Wash and Gas facilitywas located at 6821 NE Highway 99, in the northeast corner of the intersection of NE Highway99 and NE 68th Street. All structures were removed in 2013 and only asphalt and concrete padsremain. A LUST notification was filed in 1994. Site characterization occurred in 2002 through2006. Four USTs and 2,104 tons of petroleum-contaminated soil were removed in 2014. Thesubsequent LUST decommissioning report identified soil with petroleum exceeding cleanuplevels remaining at 15 to 17 feet below the ground surface (bgs) in some areas and that onsitemonitoring wells had free product (in this case a mixture of gasoline and diesel fuel) above thegroundwater (approximately 25 to 26 feet bgs). The sidewalk at the western terminus of theproject will be constructed on a hillslope and requires retaining walls. The bottom of thedeepest retaining wall excavation would be approximately 30 feet above groundwater. Thus, nogroundwater contamination from the Jumbo site would be encountered by the NE 68th Streetsidewalk project.

• Unocal Service Station #3589 – Leaking Underground Storage Tank (LUST) (EcologyFacility/Site ID 71874274). The Unocal facility was located at 6715 NE Highway 99, in thesoutheast corner of the intersection of NE 68th Street and NE Highway 99. The Unocalbuildings have been removed and the property is now occupied by a Jiffy Lube service center.Sidewalk improvements were made along NE 68th Street in conjunction with thisredevelopment. The LUST notification was filed in 1988 and routine cleanup took place between1993 and 2002 for petroleum above cleanup level in soil and groundwater. Site status waschanged to NFA in 2003. The sidewalk project will incorporate the existing sidewalk on thisparcel. No related work will occur on the parcel. The site is not likely to impact the NE 68thStreet sidewalk project.

• Three Corners – Leaking Underground Storage Tank (LUST) (Ecology Facility/Site ID29865643). This facility was located in the southwest corner of the intersection of NE 68thStreet and NE St Johns Road. Based on aerial images, all prior buildings were removedbetween 1974 and 1978; the property is now an unimproved dirt lot owned by the City ofVancouver. A LUST notification was filed by Ecology in 2001, and the property underwent anIndependent Action to remediate for petroleum-contaminated soil and groundwater. In 2012,Ecology changed the site status to No Further Action (NFA) required. A borehole log at the site,along the sidewalk alignment, recorded 4 feet of fill bgs and groundwater at 8 feet bgs(Columbia West Engineering 2019); no hydrocarbon odor or visual contamination was reported.Construction of the NE 68th Street sidewalk requires fill on this parcel. Retaining walls, ifconstructed, would be several feet below the existing ground surface. Thus, construction of thenew sidewalk along NE 68th Street is not expected to encounter contaminated soil above actionlevels from the Three Corners site.

A Spill Prevention, Control, and Countermeasures (SPCC) Plan will be prepared by the contractor. The plan is intended to identify procedures that will avoid, minimize, and respond to any spill or unanticipated contamination. Harper Houf Peterson Righellis Inc. 2020. Technical Memorandum NE 68th Street Sidewalk – Low Level Hazardous Waste and Materials. Prepared for Clark County, Vancouver, Washington. February 4, 2020.

2) Describe existing hazardous chemicals/conditions that might affect projectdevelopment and design. This includes underground hazardous liquid and gastransmission pipelines located within the project area and in the vicinity. [help]

Natural gas lines (1 to 4 inches in diameter) are present on the south side of the street along much of the corridor. All gas lines, regardless of pipe diameter, are located within the roadway or shoulders. No special considerations were required during design and no gas lines will require relocation to construct




the sidewalk.

HHPR. 2019. Preliminary Design (30%) Report for NE 68th Street Sidewalk Project (Highway 99 to St Johns Road). Prepared for Clark County and City of Vancouver, Washington. March 29, 2019.

3) Describe any toxic or hazardous chemicals that might be stored, used, orproduced during the project's development or construction, or at any timeduring the operating life of the project. [help]

There will not be toxic or hazardous chemicals (other than those associated with operation of construction equipment), stored, used or produced during the project’s development or construction.

4) Describe special emergency services that might be required. [help]

No special emergency services are anticipated. First aid supplies and an emergency 911 response may be required if there is a worker injury.

5) Proposed measures to reduce or control environmental health hazards, if any:[help]

Any potential impacts from hazardous materials will be addressed through standard minimization measures and BMPs such as:

• All equipment to be used for construction activities will be cleaned and inspected prior to arrivingat the project site, to ensure no potentially hazardous materials are exposed, no leaks arepresent, and the equipment is functioning properly.

• Construction equipment will be inspected daily to ensure there are no leaks of hydraulic fluids,fuel, lubricants, or other petroleum products.

• Should a leak be detected on heavy equipment used for the project, the equipment will beimmediately removed from the area and not used again until adequately repaired.

• Management of contaminated media will be in accordance with applicable environmentalregulations.

• The project will comply with current local, state, and federal regulations for worker safety.

b. Noise [help] 1) What types of noise exist in the area which may affect your project (for example: traffic,

equipment, operation, other)? [help]

The dominant noise source within the project site is vehicles along NE 68th Street. Such traffic is not anticipated to have an adverse impact on the project.

2) What types and levels of noise would be created by or associated with the projecton a short-term or a long-term basis (for example: traffic, construction, operation,other)? Indicate what hours noise would come from the site. [help]

During construction, short-duration increases in the local noise environment are expected. The contractors are required to comply with all applicable regulations governing equipment levels and noise









resulting from construction site activities. The City noise ordinance (VMC 7.05.010.A.1.g.) permits construction noise between 7 a.m. and 8 p.m. Therefore, as long as all construction is performed during these hours, no direct construction related impacts are predicted. The Washington Administrative Code (Chapter 173-60) exempts most project construction noise during normal daytime hours (7 a.m. to 10 p.m.). If construction is performed during nighttime, the contractors must meet special noise-levelrequirements.No long-term noise impacts are anticipated.

3) Proposed measures to reduce or control noise impacts, if any: [help]

Mufflers on motorized vehicles will be maintained and construction will take place per City and WAC noise regulations.

8. Land and Shoreline Use [help] a. What is the current use of the site and adjacent properties? Will the proposal affect

current land uses on nearby or adjacent properties? If so, describe. [help]

The project corridor is residential, nearly all being single family homes. There is commercial development along NE Highway 99 and light industrial development along NE St Johns Road. Hazel Dell Community Park and the southern part of the 78th Street Heritage Farm are in the center of the corridor. Construction of a sidewalk along the south side of NE 68th Street will not affect current land uses of nearby or adjacent properties.

b. Has the project site been used as working farmlands or working forest lands? If so,describe. How much agricultural or forest land of long-term commercial significancewill be converted to other uses as a result of the proposal, if any? If resource landshave not been designated, how many acres in farmland or forest land tax status will beconverted to nonfarm or nonforest use? [help]

The site is not currently used as agricultural or production forest land. No agricultural or forest land of long-term commercial significance will be converted to other uses by the proposal. No designated resource lands will be converted.

1) Will the proposal affect or be affected by surrounding working farm or forest landnormal business operations, such as oversize equipment access, the application ofpesticides, tilling, and harvesting? If so, how: [help]

No. Construction of the sidewalk on the south side of NE 68th Street will not impact the seasonal agricultural activities on the 78th Street Heritage Farm property on the north side of NE 68th Street.

c. Describe any structures on the site. [help]

There are a few fences, typically 3 to 6 feet tall and wood or chainlink, along the corridor. Some fences are in the existing right-of-way and some are on private property.



http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#LandShorelineUse






There are wood utility poles along the south side of the corridor.

d. Will any structures be demolished? If so, what? [help]

Approximately 460 feet of chainlink fence (4- or 5-feet tall) and 10 feet of wood board fence (5-feet tall) will be removed from a total of four parcels. Most of the chainlink fence (approximately 300 feet) is in the right-of-way.

Utility poles will be relocated by the utility company (Clark Public Utilities).

e. What is the current zoning classification of the site? [help]

Most of the land along the project corridor is zoned Single-Family residential (R1-6). The western end along NE Highway 99 is zoned General Commercial/Community Commercial with Residential (R-30) immediately adjacent. Similarly, the east end, in the City limits, is zoned Light Industrial along NE St Johns Road with some High Density Residential (R-18) and Residential (R-18) adjacent. Hazel Dell Community Park and the 78th Street Heritage Farm are zoned Public Facilities. Clark County. 2019. MapsOnline. https://gis.clark.wa.gov/mapsonline/?site=CompMgmtPlan&ext=1. Accessed September 3, 2019.

f. What is the current comprehensive plan designation of the site? [help]

Most of the land along the project corridor is designated Urban Low Density Residential. The western end along NE Highway 99 is designated General Commercial with Urban High Density Residential adjacent. Similarly, the east end, in the City limits, is designated Industrial along NE St Johns Road with some Urban High Density and Urban Medium Density adjacent. Hazel Dell Community Park is designated Park land and the 78th Street Heritage Farm is designated a Public Facility. Clark County. 2019. MapsOnline. https://gis.clark.wa.gov/mapsonline/?site=CompMgmtPlan&ext=1. Accessed September 3, 2019.

g. If applicable, what is the current shoreline master program designation of the site? [help]

Not applicable. The project corridor does not lie in or adjacent to a designated shoreline.

h. Has any part of the site been classified as a critical area by the city or county? If so,specify. [help]

The project site contains the following critical areas:

• Critical Aquifer Recharge Areas (CARA). The project is located within the Troutdale Aquifer, adesignated sole-source aquifer (HHPR 2019, 2020).

• Wetland Buffer. Wetland A is rated as a Category IV wetland adjacent to a high intensity landuse (HHPR 2020); thus, the City of Vancouver designated buffer width is 50 feet, per VancouverMunicipal Code (VMC) Table 20.740.140-6.

• Fish and Wildlife Habitat Conservation Areas (HHPR 2020).A small (0.6 acre) Oregon white oak-Oregon ash stand is present along the south side of NE 68th Street between Five Star Auto Body and NE St Johns Road. Oak accounts for more than 50% of the








canopy coverage. In urban and urbanizing areas, oak stands less than 1 acre may still meet the WDFW definition of an Oregon White Oak Woodlands Priority Habitat if they are particularly valuable to fish or wildlife (WDFW 2008). The stand meets this criterion due to the scarcity of oak habitat in the vicinity and the size of the oak trees in this stand. The six white oak trees in the stand range in size from 24 to 40 inches dbh; four of the six trees are 37 to 40 inches dbh. Large oaks can support nesting cavities, which are important limiting habitat for many avian species. Thus, this oak stand is regulated as a critical area under VMC 20.740.110. Clark County. 2019. Clark County GIS MapsOnline. Available online at http://gis.clark.wa.gov/mapsonline. Accessed variously March through September 2019.

Harper Houf Peterson Righellis Inc. (HHPR). 2019. Technical Memorandum NE 68th Street Sidewalk – Clark County Critical Area Report. Prepared for Clark County, Washington. October 28, 2019.

HHPR. 2020. Technical Memorandum NE 68th Street Sidewalk – City of Vancouver Critical Area Report. Prepared for City of Vancouver, Washington. February 11, 2020.

Washington Department of Fish and Wildlife (WDFW). 2008. Priority Habitat and Species List. Olympia, Washington. Updated January 2019.

Washington Department of Fish and Wildlife (WDFW). 2019. Priority Habitat and Species on the Web. Olympia, Washington. URL http://apps.wdfw.wa.gov/phsontheweb. Accessed August 21, 2019.

i. Approximately how many people would reside or work in the completed project? [help]

No people will reside or work in the completed project, which is a sidewalk.

j. Approximately how many people would the completed project displace? [help]

No people will be displaced by the project.

k. Proposed measures to avoid or reduce displacement impacts, if any: [help]

Not applicable. No people will be displaced by this project.

L. Proposed measures to ensure the proposal is compatible with existing and projectedland uses and plans, if any: [help]

This proposal supports and maintains an existing use along the project corridor by improving pedestrian and bicycle access.

m. Proposed measures to reduce or control impacts to agricultural and forest lands oflong-term commercial significance, if any: [help]

No impacts are anticipated (see section 8.b. for land use description.)

9. Housing [help] a. Approximately how many units would be provided, if any? Indicate whether high,

middle, or low-income housing. [help]

No housing units will be provided.

b. Approximately how many units, if any, would be eliminated? Indicate whether high,middle, or low-income housing. [help]







http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Housing




No housing units will be eliminated as a result of this project.

c. Proposed measures to reduce or control housing impacts, if any: [help]

Not applicable (no impacts).

10. Aesthetics [help] a. What is the tallest height of any proposed structure(s), not including antennas; what is

the principal exterior building material(s) proposed? [help]

The tallest proposed structures would be the six metal luminaries (light poles), each approximately 33 feet high.

b. What views in the immediate vicinity would be altered or obstructed? [help]

No views in the vicinity of the project will be altered or obstructed by the luminaries because they would be relatively narrow.

c. Proposed measures to reduce or control aesthetic impacts, if any: [help]

The minimum number of luminaries needed to safely illuminate each crossing will be installed (two at each crossing).

11. Light and Glare [help] a. What type of light or glare will the proposal produce? What time of day would it

mainly occur? [help]

During construction activities, typical temporary light, glare, and other visual impacts will result from construction equipment, traffic signage, stockpiled materials, and accessories (such as worker’s vehicles). Greatest visual impacts will occur during the typical work hours, such as from 7 a.m. to 7 p.m. Monday through Friday and from 7 a.m. to 5 p.m. on Saturdays. There will also be the typical visual impacts from traffic signage and barricades left on site during the evening hours for safety.

The new luminaries will provide light at the crossings during the evening and nighttime hours.

b. Could light or glare from the finished project be a safety hazard or interfere withviews? [help]

No. The six luminaries and one, on-demand, crosswalk sign with beacon (rectangular rapid-flashing beacon) are being added to increase safety.

c. What existing off-site sources of light or glare may affect your proposal? [help]

The surrounding property is residential, commercial, and open-space. No off-site sources of light will



http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Aesthetics




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#LightGlare





affect the proposal.

d. Proposed measures to reduce or control light and glare impacts, if any: [help]

Lights on the luminaries are LED cut-off fixtures with little to no up light. Light trespass and pollution is minimized. The fixtures utilized minimize wattage and lumen output while meeting the lighting standard.

12. Recreation [help] a. What designated and informal recreational opportunities are in the immediate

vicinity? [help]

Hazell Dell Community Park is in the approximate center of the project corridor, along the north side.

b. Would the proposed project displace any existing recreational uses? If so, describe.[help]

No existing recreational uses will be displaced by this project.

c. Proposed measures to reduce or control impacts on recreation, including recreationopportunities to be provided by the project or applicant, if any: [help]

Construction of a new formal pedestrian access along the west side of the existing driveway entrance to Hazel Dell Community Park will be temporary and as brief as practicable. The pedestrian access at the east end of the park will remain open and unobstructed. The new entrance will separate pedestrians and vehicles entering/exiting the park. Currently, all users (pedestrians, cyclists, and vehicles) share the common driveway.

13. Historic and cultural preservation. [help] a. Are there any buildings, structures, or sites, located on or near the site that are over

45 years old listed in or eligible for listing in national, state, or local preservationregisters ? If so, specifically describe. [help]

The Clark County Poor Farm Historic District abuts NE 68th Street, and is listed in the National Register of Historic Places (NRHP). The Bonneville Power Administration’s Ross-Lexington No. 1 Transmission Line crosses over NE 68th Street, and has been determined to be eligible for listing in the NRHP. The First Congregational United Church of Christ at 1220 NE 68th Street is recommended to be eligible for listing in the NRHP.

b. Are there any landmarks, features, or other evidence of Indian or historic use oroccupation? This may include human burials or old cemeteries. Are there any materialevidence, artifacts, or areas of cultural importance on or near the site? Please list anyprofessional studies conducted at the site to identify such resources. [help]

Archaeological Investigations Northwest, Inc. (AINW), completed a survey of the project site and found one historic-period archaeological site; this site is recommended to be not eligible for listing in the NRHP.



http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Recreation




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#HistoricCulturalPreservation




A cemetery associated with the Clark County Poor Farm is documented north and outside of the project site. A remote sensing survey delineated the extent of the cemetery, the results of which confirm that the project will not encroach upon the cemetery.

c. Describe the methods used to assess the potential impacts to cultural and historicresources on or near the project site. Examples include consultation with tribes andthe department of archeology and historic preservation, archaeological surveys,historic maps, GIS data, etc. [help]

AINW conducted a cultural resource survey for the project to meet review under Section 106 of the NHPA, state laws regarding archaeological and historic resources, and local development review. AINW’s cultural resource survey includes a literature review, archival research, and fieldwork to identify archaeological and historic resources within the Area of Potential Effects (APE) for the project. AINW’s study is being directed by staff meeting the Professional Qualifications Standards of the Secretary of the Interior’s Standards and Guidelines for Archaeology and Historic Preservation, and the forthcoming report will follow Washington State Standards for Cultural Resource Reporting set by the Washington State Department of Archaeology and Historic Preservation (DAHP). WSDOT and DAHP will review the survey report. WSDOT will complete consultation with Native American Tribes. A permit from USACE will also be needed, and they will consult with Native American Tribes as appropriate.

d. Proposed measures to avoid, minimize, or compensate for loss, changes to, anddisturbance to resources. Please include plans for the above and any permits that maybe required. [help]

An alternatives analysis for sidewalk design and construction was completed, and the preferred alternative was selected to minimize potential impacts on cultural resources. No adverse effects on historic properties are anticipated that would require avoidance or minimization measures.

14. Transportation [help] a. Identify public streets and highways serving the site or affected geographic area and

describe proposed access to the existing street system. Show on site plans, if any.[help]

The NE 68th Street corridor is accessed from the west by NE Highway 99 and the east by NE St Johns Road. NE 17th Avenue allows ready access to the western and central portion of the corridor from NE Minnehaha Street.

b. Is the site or affected geographic area currently served by public transit? If so,generally describe. If not, what is the approximate distance to the nearest transitstop? [help]

C-TRAN has routes along both NE Highway 99 and NE St Johns Road, but no routes currently alongNE 68th Street. When asked if there were plans for route expansions along NE 68th Street, Larry Hamof C-TRAN verified there are no plans for a route along NE 68th Street in either short or long rangeplanning.




http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Transportation




c. How many additional parking spaces would the completed project or non-projectproposal have? How many would the project or proposal eliminate? [help]

No parking spaces will be added or eliminated as part of this project.

d. Will the proposal require any new or improvements to existing roads, streets,pedestrian, bicycle or state transportation facilities, not including driveways? If so,generally describe (indicate whether public or private). [help]

The project would provide a continuous sidewalk along the south side of NE 68th Street between NE Highway 99 and NE St Johns Road. Adjustments to some driveways will be required to accommodate the new sidewalk.

e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or airtransportation? If so, generally describe. [help]

No. The project will not use water, rail or air transportation.

f. How many vehicular trips per day would be generated by the completed project orproposal? If known, indicate when peak volumes would occur and what percentage ofthe volume would be trucks (such as commercial and nonpassenger vehicles). Whatdata or transportation models were used to make these estimates? [help]

No additional vehicular trips per day will be generated by this sidewalk project.

g. Will the proposal interfere with, affect or be affected by the movement of agriculturaland forest products on roads or streets in the area? If so, generally describe. [help]

No. The project will not affect or be affected by the movement of agricultural and forest products.

i. Proposed measures to reduce or control transportation impacts, if any: [help]

For this project, the contractor is required to maintain two-way traffic during construction, at least one lane in each direction. No detours will be allowed.

15. Public Services [help] a. Would the project result in an increased need for public services (for example: fire

protection, police protection, public transit, health care, schools, other)? If so,generally describe. [help]

No. The project will not result in an increased need for public services.

b. Proposed measures to reduce or control direct impacts on public services, if any.[help]

None. There will be no impacts to any public services.








http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#PublicServices




16. Utilities [help] a. Circle utilities currently available at the site: electricity, natural gas, water, refuse

service, telephone, sanitary sewer, septic system, other. [help]

HHPR. 2019. 75% Design Report for NE 68th Street Sidewalk Project (Highway 99 to St Johns Road). Prepared for Clark County and City of Vancouver, Washington. November 20, 2019.

Harper Houf Peterson Righellis Inc. 2020a. 75% Design Report for NE 68th Street Sidewalk Project. (Highway 99 to St Johns Road). Prepared for City of Vancouver, Vancouver, Washington. January 24, 2020.

b. Describe the utilities that are proposed for the project, the utility providing the service,and the general construction activities on the site or in the immediate vicinity whichmight be needed. [help]

None. There are no additional utilities proposed for this project.

C. Signature [help] The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision.

Signature: _____________________________________________________

Name of signee: ___Jennifer Taylor_____________________________________

Position and Agency/Organization: ____Clark County Public Works_____________

Date Submitted: _____________________


5/7/2020

http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Utilities



http://www.ecy.wa.gov/programs/sea/sepa/ChecklistGuidance.html#Signature

NE 68th Street Sidewalk Project SEPA Environmental Checklist (WAC 197-11-960)

Appendix A: Figures


NE 68th Street Sidewalk SEPA Environmental Checklist (WAC 197-11-960)



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Appendix B: Photographs


NE 68th Street SIdewalk SEPA Environmental Checklist (WAC 197-11-960)



B-1

Photograph 1: View looking west from the intersection of NE 68th Street and NE 10th Avenue, towards NE Highway 99 and the western terminus of the project. Photograph taken January 31, 2019.

Photograph 2: View looking west along NE 68th Street in the vicinity of NE 14th Avenue, showing steep slopes along the street. No sidewalks on either side. Photograph taken January 31, 2019.


B-2

Photograph 3: View looking west along NE 68th Street towards NE 17th Avenue, showing typical existing conditions with single family homes on both sides of the street. No sidewalk on either side at this location. Photograph taken January 31, 2019.

Photograph 4: View looking east along NE 68th Street, showing an example of how an existing sidewalk segment terminates. Hazel Dell Park is on the left side of the street. Photograph taken July 18, 2019.


B-3

Photograph 5: View looking west along NE 68th Street, showing typical existing conditions along the project corridor. Hazel Dell Community Park is on the right and single family homes are on the left. Photograph taken January 31, 2019.

Photograph 6: View looking east at the BPA right of way, showing a segment of project corridor where no sidewalk is present. Photograph taken August 23, 2019.


B-4

Photograph 7: View looking east along NE 68th Street. Recently constructed Creekside Meadows Apartments and associated frontage improvements are on the right, single family residences with narrow shoulder on the left. Photograph taken January 31, 2019.

Photograph 8: View looking west showing the emergent wetland on the south side of NE 68th Street in the vicinity of NE 31st Avenue. Photograph taken May 2, 2019.


B-5

Photograph 9: View looking west along NE 68th from the intersection with NE St. John’s Road, showing typical existing conditions with no sidewalk, narrow shoulder, and gentle slopes. Undeveloped land is on the left, single family homes on the right. Photograph taken January 31, 2019.

Photograph 10: View looking at the intersection of NE 68th Street and NE St Johns Road, the east terminus of the project, showing the end of the sidewalk from NE St Johns Road. Undeveloped land on the right behind the street sign. Photograph taken January 31, 2019.


Certificate Of CompletionEnvelope Id: 6AD5F7A2D14145368F738386FE8F42AE Status: Completed

Subject: Please DocuSign: 372122-SEPA Distribution List and DNS.pdf, NE 68th St SEPA.pdf

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Document Pages: 41 Signatures: 2 Envelope Originator:

Certificate Pages: 5 Initials: 0 Jessica Cottam

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IP Address: 64.4.181.37

Record TrackingStatus: Original

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Tom Grange

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PROJECT: NE 68th Street Sidewalk CRP No. 372122 ...

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