Presented by: Stahl Sheaffer Engineering, LLC

a multi-discipline civil / structural engineering company

Stahl Sheaffer Engineering, LLC (Stahl Sheaffer) is a multi-discipline civil/structural

engineering firm that has been providing structural and site engineering services since

2006. Stahl Sheaffer specializes in building design and rehabilitation, bridge design and

NBIS inspection, surveying, land development, transportation engineering, geotechnical

testing and design, construction inspection, and asset management. We are constantly

updating our technologies to support our services, including a survey-grade LiDAR

system and a mid-sized Matrice 200 Series drone. We provide engineering services for

multiple markets including state agencies and municipalities, higher education, oil and

gas, and private development including healthcare, hotel, recreational, residential, and

senior living facilities.

Stahl Sheaffer was once again ranked in Engineering News-Record’s

(ENR) National Top 500 Design Firms list in 2019. Published annually,

this list ranks the 500 largest US engineering and architecture firms

based on design-specific revenue. Stahl Sheaffer is also ranked 55 in

the ENR Mid-Atlantic Top Design Firms list.

Stahl Sheaffer has a staff of 170 individuals from which we can assign resources to meet

timelines and design requirements, including professional engineers (P.E.), surveyors (PLS),

LEED designers, traffic engineers (PTOE), GIS specialists, sUAS pilot, Certified Bridge Safety

Inspectors (CBSI), Nationally Certified Tunnel Inspectors (NCTI), certified facade inspectors

(EIFS), construction inspectors, geotechnical analysts, and environmental scientists.

We operate from a total of ten locations in three states, and our firm is licensed to operate

in fifteen states with engineers licensed in many locations throughout the US.

State College, PA

301 Science Park Rd, Ste 333

State College, PA 16803

(814) 689-1562

Harrisburg, PA

4431 N. Front Street

Suite 102

Harrisburg, PA 17110

Clearfield, PA

800 Leonard Street, Ste 200

Clearfield, PA 16830

(814) 205-4012

Selinsgrove, PA

106 N High Street

Selinsgrove, PA 17870

(570) 374-4813

Southpointe, PA

6000 Town Center Blvd

Ste 215, Canonsburg, PA

15317 | (724) 960-1111

Monroeville, PA

4055 Monroeville Blvd

Building 1, Suite 400

Monroeville, PA 15146

(412) 229-8583

Canton, OH

1401 S Main St, Ste 203

North Canton, OH 44720

(330) 794-5490

Charleston, WV

400 Allen Drive, Ste 100

Charleston, WV 25302

(681) 265-3842

Morgantown, WV

250 Lakewood Center

Morgantown, WV 26508

(304) 381-4281

Soils & Materials Lab, PA

360 Euclid Avenue

Canonsburg, PA 15317

(724) 206-9862

• Delaware

• Indiana

• Kentucky

• Maryland

• Mississippi

• New Hampshire

• New Jersey

• New York

• North Carolina

• South Carolina

• Ohio

• Pennsylvania

• Tennessee

• Virginia

• West Virginia

• Building design & forensics

• Bridge design & NBIS

• Feasibility studies

• Facade & roof rehabilitation

• Survey & 360 scanning

• Land development & permitting

• Road & parking lot engineering

• Pedestrian & traffic services

• Construction inspection

• Geotechnical engineering &

subgrade investigations

• Environmental consulting

Stahl Sheaffer provides structural engineering for the design of bridges of all construction

types and span arrangements. Our staff includes professional engineers dedicated to

bridge structural engineering, Certified Bridge Safety Inspectors (CBSI), and Nationally

Certified Tunnel Inspectors (NCTI) with experience designing and inspecting structures for

the Department of Transportation, the Turnpike Commission, the Department of

Conservation and Natural Resources (DCNR), and various municipalities.

Services include:

• Preliminary and final design

• Bridge replacement, restoration, rehabilitation

• Maintenance recommendations

• Design of associated roadway

• Load capacity analysis

• Stormwater

• Signing

• Pavement marking

• Right of way

• Geometry

• Drainage

• Permitting

• Clearance

• Hydraulics

• Environmental studies

• Public meetings

• Geotechnical exploration

• Project management

• Construction inspection

• Safety inspection

The staff of Stahl Sheaffer has designed hundreds of bridges, ranging from 8 feet to over

3,000 feet in length. For projects with townships, counties, and boroughs the funding

mechanisms have included Liquid Fuels Funds, General Funds, Retroactive

Reimbursements, and both Federal and State Funding Participation.

Stahl Sheaffer also has staff with extensive experience in completing bridge, tunnel, and

sign structure safety inspections in accordance with the National Bridge Safety Inspection

(NBIS) program and the National Tunnel Inspection Standards (NTIS). Our CBSI- and NCTI-

certified staff members have completed routine, in-depth, and emergency (flood or

accident) inspections, load rating analysis, and emergency repair recommendations for

bridges and tunnels of various constructions, spans, and lengths. Project examples follow.

Stahl Sheaffer as the prime consultant, completed Agreement E01385 SR 2006, Section

A01 over Unnamed Tributary to Cedar Run Bridge Replacement, Centre County in 2010.

The project involved the construction of a box culvert and stream relocation to replace a

load posted structure and improve hydraulic performance in this flood prone area. To

arrive at the preferred alternative, Stahl Sheaffer evaluated all options and chose the one

that provides the greatest number of benefits, including: meeting the majority of design

criteria, improving safety, minimizing right-of-way and utility impacts, removing hydraulic

obstructions, improving flooding elevations, minimizing disruptions to residential property

access during construction, and improving fish passage.

On this project, Stahl Sheaffer managed and/or performed all aspects of the

Transportation Development Process, including: Archaeology, Historic Resources, Stream

Relocation, Public Involvement, Utility Coordination and Relocation, Alternative Studies,

4(f) Resources, Agricultural Resources, 2-D Hydraulic Analysis, and Traffic Calming

Measures. Stahl Sheaffer facilitated ten well attended, highly publicized public meetings

and obtained public input in the development of alternatives

“Stahl Sheaffer excelled on the

completion of Part 2 of this agreement,

accelerating the controversial project

resulting in letting the project nearly one

year ahead of the originally scheduled

let date. Stahl Sheaffer performed very

well at facilitating the public workshops

meeting the needs of the Department as

well as other project stakeholders. Stahl

Sheaffer was very responsive to the

project's needs, often times meeting with

residents or design team members on

very short notice. Jeff Sheaffer and

Aaron Fayish performed very well at

both the technical end of the design and

facilitating the public's needs into the

project. It was a pleasure working with

Stahl Sheaffer on this project.”

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Stahl Sheaffer completed

design of the Gamble Run

bridge replacement for the

Watson Township Supervisors.

Structural adequacy was

reviewed by PennDOT and

required on the project. The

bridge was constructed in

2011.

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Stahl Sheaffer Engineering

completed the

rehabilitation design for

two historic covered

bridges that were

damaged by flooding. The

91’-6” Rishel and 94’-9”

Keefer Station burr arch

covered bridges were

reconstructed using FEMA

and County funds. Work

included an in-depth

inspection, timber repairs

and replacements

including in-kind

replacement of structural

members, decking and

siding, and concrete abutment repairs. Additional tasks included plans preparation,

cost estimates for Northumberland County, and preparation of contract

documents, bid documents and technical specifications.

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Stahl Sheaffer completed the design of two structures on the ATV trail in Sproul State Park

near Monument, PA. The first structure consisted of a 20’ x 5’ precast reinforced concrete

box culvert with precast end sections.

The second structure required the foundation design for a 150’ long prefabricated steel truss

bridge. Design of the truss foundation and accurate layout of the final bridge span/location

were imperative due to potential conflicts with the existing railroad bridge abutments that

were to remain in place. Due to the location of these abutments, the proposed span was

lengthened to locate the new abutments and footings behind both existing

abutments. These bridges were constructed in 2011.

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Stahl Sheaffer holds an open-end agreement with DCNR for bridge design, which began in

2015 when Stahl Sheaffer was assigned one state park and three state forestry bridge/

culvert projects. Since then, Stahl Sheaffer has been assigned 38 structures under 26 work

orders, of which, the design for 24 of these bridges and culverts are complete. Design for

12 structures is in progress, and two more are anticipated for 2020. Stahl Sheaffer is also

performing NBIS inspections and construction management under open-end contracts for

DCNR. As part of this contract, we have also completed and/or are designing multiple slide

repair projects under four work orders, including:

• Work Order 27 (Slate Run Road) - 2 slides completed and 3 in design.

• Work Order 28 (Beech Creek Road)- 1 slide area.

• Work Order 29 (Raccoon Creek State Creek) - 6 potential slide areas.

• Work Order 30 (Owassee Road) - 1 slide area.

Bridge design projects are listed on the following page.

Year Bridge Over County Structure Type 2015 Gordon Road Whitney Run Clearfield 8’x8’-3” Box Culvert

2015 Blackwell Road Trib to Laurel Run Clearfield 8’x4’-6” Box culvert

2015 Main Park Road Trib to Raccoon Creek Lake Beaver 9’-2"x6’-7” Pipe Arch

2015 Right Asaph Road Bear Wallow Branch Tioga 16’x5’-3” Arch Culvert

2016 N Wolf Rock Rd Town Line Run Somerset 8’x5’-8” Box Culvert

2016 Coon Run Road Swamp Branch Clinton 12’x8’ Box Culvert

2016 Cove Road White Deer Hole Lycoming 16’x6’ Arch Culvert

2016 Crowley Run Rd Crowley Run Clinton 8’x4’-9” Box Culvert

2016 Stony Run Road Stony Run Union 17’ Spread Box Beam Bridge on Cantilever Abutments

2016 Stony Run Road Stony Run Centre 8’x8’ Box Culvert

2016 Narrow Gauge Trail Horse Valley Run Perry 35’ Spread Box Beam Bridge on Cantilever Abutments

2016 State Line Road Panther Run Centre 18’-6” Spread Box Beam Bridge on Cantilever Abutments

2016 Cooper Mill Road Spruce Run Union 19’ Spread Box Beam Bridge on Cantilever Abutments

2017 Bear Gap Trail Bear Gap Run Bedford 14’x5’ Box Culvert

2017 Greenlick Road Greenlick Run Clinton 15’x7’ Box Culvert

2017 Greenlick Road Little Greenlick Run Clinton 8’x5’ Box Culvert

2017 Red Ridge Road Windfall Run Potter 14’x7’ Arch Culvert

2017 Headwaters Haul Rd Blacklog Creek Juniata 12’x8’ Box Culvert

2017 Pine Ridge Road Trib to Spruce Run Juniata 10’x8’ Box Culvert

2017 Bower Mountain Rd Chestnut Run Perry 6’x3’-2” Arch Culvert

2017 Sugar Camp Road Rattlesnake Run Clinton 23’x6’-11” Arch Culvert

2017 Montgomery Trail Trout Run Franklin 37’-6” Spread Box Beam Bridge on Cantilever Abutments

2017 Bear Meadows Rd Galbraith Gap Run Centre 25’-7” Spread Box Beam Bridge (Superstructure Replacement)

2017 Bear Meadows Rd Galbraith Gap Run Centre 22’ Spread Box Beam (Superstructure Repl)

2018 Cowpens Road Laurel Run Perry Spread Box Beam Integral Abutment

2018 Stony Run Road Stony Run Union Spread Box Beam Bridge with GRB-IBS abutments

2018 Glade Road Blue Hole Creek Somerset Box Culvert

2018 Glade Road Trib to Blue Hole Creek Somerset Box Culvert

2018 Glade Road Cole Run Somerset Box Culvert

2019 Wykoff Road Wykoff Branch Clinton Box Culvert

2019 Cattaragus Road Crowley Run Clinton Box Culvert

2019 Yough Bike Trail Youghiogheny River (914) Fayette Box Culvert

2019 Yough Bike Trail Youghiogheny River (935) Fayette Streambed Paving

2019 Yough Bike Trail Youghiogheny River (936) Fayette Box Culvert

2019 Yough Bike Trail Youghiogheny River (939) Fayette Streambed Paving

2019 Yough Bike Trail Youghiogheny River (952) Fayette Structure Removal

Stahl Sheaffer completed the design and initial inspection in 2009 of the 42' long precast

reinforced concrete arch structure carrying Linnippi Trail over McElhatten Run in Wayne

Township, Clinton County, near Lock Haven, PA. This structure was designed by Stahl

Sheaffer and is the only means of access to the Linnippi Trail Housing Development and

the Lock Haven Area Water Authority. The two-lane structure is adjacent to companion

structures carrying SR 220 over McElhatten Run. The structure featured guiderail mounted

to the arch spandrel walls and significant amounts of rip-rap to maintain the stream

alignment, reduce scour effects on the structure, and maintain the normal stream width

that supports native trout reproduction.

Stahl Sheaffer performed coordination with PennDOT Engineering District 2-0 to assign

structure numbers to the newly constructed facility that was ultimately turned over to the

Wayne Township Supervisors after the housing development owner completed the bridge

construction. Stahl Sheaffer provided sufficient copies of the reports for owner records,

Township records and submission to PennDOT Engineering District 2-0 for approval and

record keeping purposes.

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Stahl Sheaffer provided engineering services for the replacement of a single-span cast-in-

place reinforced concrete arch carrying Arrowhead Trail over SR 1004, Sugar Camp Road.

Three structure alternatives were investigated during preliminary design. The options

included a precast reinforced concrete arch under fill, a single-span composite prestressed

concrete I-beam bridge on pile supported integral abutments, and a single-span

prestressed concrete adjacent box beam bridge on cantilever abutments. The selected

replacement is a 145'-6" single span structure consisting of three 33/71.5 PA Bulb-Tee

Beams on integral abutments. To complete the design process, coordination was required

with PennDOT District 12-0 to obtain Structural Adequacy and Foundation Approval.

The three structure alternatives considered included: Alternate No. 1, a precast reinforced

concrete arch; Alternate No. 2, a single-span composite prestressed concrete I-beam

bridge with a reinforced concrete deck on integral abutments; and Alternate No. 3, a

single-span composite prestressed concrete adjacent box beam bridge with a reinforced

concrete deck. The three alternatives were evaluated to determine the most appropriate

replacement structure.

Upon evaluation of the criteria, Stahl Sheaffer

concluded that Alternate No. 2 was the most

feasible alternative. This alternate selection was

significantly less expensive than Alternate No. 1 and

Alternate No. 3. Additionally, this structure type

easily accommodated SR 1004 if the horizontal

alignment is improved to eliminate the S-curve

within the existing structure. Therefore, Stahl

Sheaffer recommended replacing the existing

structure with Alternate No. 2, a single-span

composite prestressed concrete I-beam bridge on

integral abutments using two 33/85.5 PA Bulb-Tee

beams spaced at 8’-8 ¼” o.c. with an 8.0” reinforced

concrete deck and a 14’-0” curb-to-curb.

The horizontal and vertical geometry of SR 1004 was

based on a 35-mph design speed. There is an

approximate grade separation of 37 feet between

Arrowhead Trail and SR 1004. With a minimum

under clearance of 16’-6”, there is trivial effect on

vertical profile based on the existing geometry

constraints. The trail and SR 1004 will be replaced on similar vertical profiles.

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Using advanced materials, Stahl Sheaffer strengthened PennDOT’s bridge on SR 3016 in

Greene County while keeping the trucks running for our client. Fiber Reinforced Polymer

(FRP) technology installed at the bridge’s beam ends strengthened the existing concrete by

adding shear capacity for the client’s special load conditions.

In early 2016 Stahl Sheaffer was asked to assess construction routes for planned or

developing well sites in Aleppo Township. One route involved a concrete T-beam bridge

over the South Fork of Wheeling Creek. Initial ratings of the existing bridge showed it could

support legal truck traffic but was not capable of carrying the shear loading from the

client’s heaviest special hauling vehicles, with the interior beams found to be below

capacity. Several alternatives were originally considered, including the construction of

corbels to extend the beam seats, strengthening from above using a strong-back beam

system, individual beam strengthening using a polymer/fiber wrap, and superstructure

replacement. Each option was assessed for drawbacks such as constricting the hydraulic

opening, creating roadside obstacles, or excessive cost. Once fully evaluated, the Fiber

Reinforced Polymer (FRP) retrofit was determined to be the most advantageous, especially

considering it was significantly less expensive than the lowest replacement estimate,

coming in at $107,500 including design, permits, traffic control, and the complete cost of

installation (which is approximately 60% less than a new concrete beam superstructure).

To advance the FRP method, Stahl Sheaffer expanded collaboration on the project by

bringing on design-builder Pullman/Structural Technologies, out of Carnegie. Teaming with

Pullman, Stahl Sheaffer was able to develop a set of design plans that met PennDOT’s

approval. Design calculations followed AASHTO’s 2012 Guide Specifications for Design of

Bonded FRP Systems for Repair. U-wrap FRP strengthening was designed to increase the

shear capacity of the existing girders by 35 kips using V-wrap C200 unidirectional carbon

sheets and V-wrap 700 epoxy adhesive. At the intersection between

girders and diaphragms, strengthening was achieved by using an L-

wrap configuration.

Pullman supplied all material, safety, installation, and quality

documentation leading up to the construction phase in October of

2016. Their crew worked for six days, completing the installation in

under a week. Access was gained by temporary scaffolding bolted to

the abutment walls. Following AASHTO and Pullman’s quality plan,

pull-off tests were performed in the field to ensure adhesion, and

witness panels were tested in the lab to ensure resin saturation had

taken place and environmental conditions were conducive to proper

curing. Stahl Sheaffer and PennDOT supplied full-time inspection on

the job.

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This project consisted of the rehabilitation of an existing bridge carrying SR 4002 over

North Fork Beech Creek in Snow Shoe Township, Centre County. This project included

replacing the existing bridge superstructure/deck with new steel I-beams and an open grid

steel deck. As part of the rehabilitation, the existing bridge railing was replaced with a

structure mounted guide rail system. The existing abutments were reused and the

proposed low chord and roadway elevations matched existing conditions. The total

superstructure depth was designed to match the existing superstructure depth including

bearings, beams, deck, and pavement.

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Stahl Sheaffer Engineering designed the full replacement of an existing deteriorated

bridge structure with a span of approximately 24.0’. The existing steel beam

superstructure with an open steel grid deck was replaced with a precast reinforced

concrete box culvert and end sections.

Stahl Sheaffer also completed NBIS inspection on the completed structure in 2017.

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Stahl Sheaffer was selected for an open-end contract for bridge design (Agreement FDC-

500-802S) with PA DCNR. The contract began in 2015 when Stahl Sheaffer was assigned

one State Park and three State Forestry bridge/culvert projects. Stahl Sheaffer has been

assigned 15 project work orders to date and has been assigned an additional 10 State

Forestry bridge/culvert projects in 2016.

Stahl Sheaffer completed structural design of a 22'-7 7/8" long, 8.0 ft. x 8.25' single cell

precast reinforced concrete box culvert and precast reinforced concrete end sections.

Additional tasks included

hydrologic and hydraulic analysis;

roadway design; plans

preparation; cost estimate and

technical specifications.

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Stahl Sheaffer was the prime engineering consultant for a bundled bridge project that

included 10 structure replacements or rehabilitations in three WVDOH Districts spanning

six counties. Stahl Sheaffer completed all design and permitting services, construction

inspection, and construction management for the following structures, which were bid

together utilizing a competitive bundling package that included several alternate

scenarios:

• CR 24 over Little Creek, Jackson County, WV – Rehabilitation of existing 47’

span bridge including deck replacement, painting steel superstructure, and

abutment repairs. A temporary road and bridge installed directly upstream of

the existing bridge was used to detour traffic during construction.

• CR 25/1 over Tug Fork of Mill Creek, Jackson County, WV – Replacement

consisting of 98’-6” single span Prestressed concrete adjacent box beam

superstructure supported on steel piles with reinforced concrete pile caps. The

new structure was placed along a new alignment directly upstream of the

existing bridge allowing traffic to utilize the existing bridge during construction.

• CR 21/29 over Shamblin Run, Jackson County, WV – Replacement of existing

culvert with a new 10’-2” (span) x 2’-8” (rise) aluminum box culvert supported

on reinforced concrete spread footings. Total structure length was 80’-0”.

Traffic was detoured during construction.

• CR 7/13 over South Fork of Hughes River, Ritchie County, WV – Replacement

of an existing bridge with a new 103’-0” single span prefabricated steel arch

bridge supported on steel piles with reinforced concrete pile caps. The new

structure was placed along a new alignment directly upstream of the existing

bridge allowing traffic to utilize the existing bridge during construction.

• CR 15 over Evans Creek, Putnam County, WV – Replacement of existing bridge

with a new 82’-0” single span prestressed adjacent box beam superstructure

supported on reinforced concrete abutments. The bridge was installed using

phased construction providing one lane of traffic during construction.

• CR 28 over Slab Creek, Ritchie County, WV – Replacement of existing bridge

with a new 68’-0” single span prestressed adjacent box beam superstructure

supported on steel piles with reinforced concrete pile caps. The new structure

was placed along a new alignment directly downstream of the existing bridge

allowing traffic to utilize the existing bridge during construction.

• CR 3 over Right Fork Reedy Creek, Roane County, WV – Replacement of a

single 48’-0” span superstructure with abutment and wingwall modifications

and approach roadway work. Traffic was detoured during construction using a

temporary road and bridge placed directly downstream of the existing bridge.

• CR 3/7 over Left Fork Straight Creek, Wirt County, WV – Replacement of an

existing culvert with a new 18’-7” (span) x 5’-4 1/4” (rise) aluminum box culvert

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CR 15 over Evans Creek

CR 24 over Little Creek

supported on reinforced concrete spread footings. Total structure length was

58’-6”. Traffic was detoured during construction.

• CR 34 over Burning Springs Run, Wirt County, WV – Replacement of an

existing bridge with a 18’ (span) x 6’ (rise) precast reinforced concrete three-

sided culvert supported on reinforced concrete spread footings. The total

structure length was 31’-7”. Due to the orientation of the upstream channel, a

cantilevered soldier pile retaining wall totaling 27 feet in length was installed

along the channel bank to support the approach roadway shoulder at the

culvert. Traffic was detoured during construction.

• CR 56 over Fishing Creek, Wetzel County, WV – Rehabilitation of existing two-

span steel superstructure bridge. Total span length is 137’-0”. Rehabilitation

items include superstructure painting, deck replacement, and abutment

repairs. Traffic was detoured using a temporary two-span bridge placed

directly downstream of the existing bridge.

CR 7/13 over South Fork of Hughes River

CR 7/13 over South Fork of Hughes River

CR 25/1 over Tug Fork of Mill Creek

CR 56 over Fishing Creek

Stahl Sheaffer prepared contracts for repair and maintenance items on 22 township-

owned and four county-owned bridges located throughout Snyder County. Work items

included resealing deck joints, removal of vegetation and debris, brush cutting to clear

signage, replacement and/or resetting of signage, concrete deck repairs, cleaning and

flushing of decks and bearings, repair or replacement of deck wearing surfaces,

curb/parapet repairs, patching and/or raising of approach pavements, reconstruction of

shoulders, and improvements to off bridge drainage.

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Since 2015, Stahl Sheaffer has performed NBIS inspections, load rating analyses, and

report submissions for 156 structures in state parks and state forests throughout

Pennsylvania. The yearly assignments include type A inspections (structures less than 20’),

type A1 inspections, and type A2 inspections. These inspections have been performed in

the Western, Southern and Northcentral Engineering Regions and include:

134 Structures in 11 State

Forests:

22 Structures in 14 State Parks:

• Michaux: 2

• Rothrock: 1

• Gallitzin: 2

• Bald Eagle: 14

• Clear Creek: 1

• Moshannon: 11

• Sproul: 24

• Tiadaghton: 27

• Susquehannock: 7

• Tioga: 44

• Loyalsock: 1

• Raccoon Creek: 3

• Oil Creek: 1

• Cook Forest: 1

• Keystone: 1

• Ohiopyle: 3

• Prince Gallitzin: 1

• Black Moshannon: 1

• Bald Eagle: 2

• R.B. Winter: 2

• Reeds Gap: 1

• Little Buffalo: 2

• Hills Creek 1

• Hyner Run 1

• Nolde Forest 2

Stahl Sheaffer is Snyder County’s engineer responsible for Certified Bridge Safety

Inspections, load rating analyses, and report submissions for over 30 locally-owned

structures. Stahl Sheaffer has completed the first five-year agreement and is in the process

of a second five-year agreement, performing routine and interim inspections, as well as

on-call inspections similar to the Emergency Flood Inspections after the September 2011

Tropical Storm Lee. The structures included in this contract include both single and

multiple spans with superstructures comprised of steel stringers, prestressed beams,

timber covered bridges, concrete box culverts, concrete t-beams and concrete slab

bridges. The contract features 23 A-1 structures, five A-2 structures, one C-1 structure, and

one D-1 structure.

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Stahl Sheaffer served as the Engineer of Record to provide temporary excavation

support and protection system for the contractor during construction of

SR 22 Jonestown Road over SR 83 bridge replacement project.

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Stahl Sheaffer is providing construction inspection services on this work order as

part of an open-end agreement for PennDOT District 3-0. The project includes

inspection for:

• Removal of the existing bridge

• Construction of a 27’-0” by 7’-6” precast reinforced concrete box culvert over

Beaver Run

• Select borrow excavation rock, superpave base, binder, and wearing courses

• Guide rail

• Pavement markings

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Stahl Sheaffer was selected as the prime consultant for the in-depth, non-destructive and

visual testing and inspection of the Blue Mountain and Kittatinny Mountain Tunnels along

the Pennsylvania Turnpike mainline. Duties included predictive and preventive

maintenance testing of electrical equipment. Evaluation Included the following

components:

• Tunnel Tube Structural Components

• Drainage

• Air Plenum

• Portal Building Façade

• Portal Building Roof

• Portal Building Housekeeping and Finishes

• Portal Building MEP

• Tunnel Mechanical Systems

• Tunnel Electrical, Power, & Backup Power Systems

• Tunnel Plumbing

• Communication System

• Fire Suppression System

• Roadway Features

• Lighting

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Stahl Sheaffer provided construction inspection and management services for the

rehabilitation of the eastbound tube of the Allegheny Tunnel on the Pennsylvania Turnpike

between Mileposts 122.18 and 123.34. Stahl Sheaffer, along with their subconsultants,

had one construction manager and four construction inspectors ensuring the proper

completion of all contract repair items such as crack sealing, shotcrete repair, concrete

repair, electrical upgrades, new signalization beacons, painting the tunnel face, and

mechanical upgrades. Additionally, Stahl Sheaffer facilitated construction meetings,

ensuring proper traffic control, evaluating contractor schedules, conducting

constructability reviews, and ensuring adherence to EEO, wage rate, and safety methods.

Stahl Sheaffer’s Director, Michael Marso served as the Agreement Manager.

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