US Bridges

SR 4006 over Quemahoning Creek

Fair

Somerset County, Pennsylvania · Acosta · Structure no. 000000000031742

Built
1915
110 years old, rebuilt 2009
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
524
2023 count
Owner
State
State Highway Agency

About this bridge

SR 4006 over Quemahoning Creek is a steel stringer/multi-beam or girder carrying SR 4006 over Quemahoning Creek in Somerset County, Pennsylvania. It was built in 1915 and reconstructed in 2009, so it is 110 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 524 vehicles a day, roughly 4% of them trucks, projected to reach 966 by 2032. The structure is 33 ft (10.1 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesSR 4006
CrossesQuemahoning Creek
LocationAcosta
RouteState Highway 0
CountySomerset County
StatePennsylvania
Coordinates40.11292, -79.0713
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic524 (2023)
Projected traffic966 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4006 over Quemahoning Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2009.

What condition is SR 4006 over Quemahoning Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does SR 4006 over Quemahoning Creek carry?

About 524 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 4006 over Quemahoning Creek?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 23 ft wide.

Who owns SR 4006 over Quemahoning Creek?

It is owned by the State Highway Agency.