US Bridges

SR 4008 over Fourmile Run

Fair

Fayette County, Pennsylvania · Redstone Township · Structure no. 000000000016980

Built
1942
83 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
1,551
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4008 over Fourmile Run is a steel stringer/multi-beam or girder carrying SR 4008 over Fourmile Run in Fayette County, Pennsylvania. It was built in 1942, so it is 83 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 1,551 vehicles a day, roughly 7% of them trucks, projected to reach 2,677 by 2032. The structure is 27 ft (8.2 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 4008
CrossesFourmile Run
LocationRedstone Township
RouteState Highway 0
CountyFayette County
StatePennsylvania
Coordinates39.95913, -79.87309
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,551 (2024)
Projected traffic2,677 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4008 over Fourmile Run built?

It was built in 1942, making it 83 years old in 2025.

What condition is SR 4008 over Fourmile Run 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 March 2023.

How much traffic does SR 4008 over Fourmile Run carry?

About 1,551 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 4008 over Fourmile Run?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.

Who owns SR 4008 over Fourmile Run?

It is owned by the State Highway Agency.