US Bridges

Pa 403 over Stony Creek River

Fair

Somerset County, Pennsylvania · Blough · Structure no. 000000000031454

Built
1992
33 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
132 ft
2 main spans
Daily traffic
1,088
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 403 over Stony Creek River is a prestressed concrete box beam or girders - multiple carrying Pa 403 over Stony Creek River in Somerset County, Pennsylvania. It was built in 1992, so it is 33 years old, younger 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 1,088 vehicles a day, roughly 4% of them trucks, projected to reach 1,449 by 2032. The structure is 132 ft (40.2 m) long and 38 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesPa 403
CrossesStony Creek River
LocationBlough
RouteState Highway 403
Coordinates40.17171, -78.90824
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating95 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length132 ft (40.2 m)
Longest span65 ft (19.8 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,088 (2024)
Projected traffic1,449 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 403 over Stony Creek River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Pa 403 over Stony Creek River 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 May 2023.

How much traffic does Pa 403 over Stony Creek River carry?

About 1,088 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Pa 403 over Stony Creek River?

The structure is 132 ft (40.2 m) long with a longest span of 65 ft (19.8 m) and a deck 38 ft wide.

Who owns Pa 403 over Stony Creek River?

It is owned by the State Highway Agency.