US Bridges

Pa 403 over Stonycreek River

Fair

Somerset County, Pennsylvania · Kantner · Structure no. 000000000031447

Built
1971
54 years old, rebuilt 2011
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
261 ft
4 main spans
Daily traffic
1,033
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 403 over Stonycreek River is a prestressed concrete box beam or girders - multiple carrying Pa 403 over Stonycreek River in Somerset County, Pennsylvania. It was built in 1971 and reconstructed in 2011, so it is 54 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 1,033 vehicles a day, roughly 8% of them trucks, projected to reach 1,782 by 2032. The structure is 261 ft (79.6 m) long and 48 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesPa 403
CrossesStonycreek River
LocationKantner
RouteState Highway 403
CountySomerset County
StatePennsylvania
Coordinates40.10315, -78.93259
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating71 US tons
Inventory rating31 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length261 ft (79.6 m)
Longest span63 ft (19.2 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,033 (2023)
Projected traffic1,782 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$3.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 403 over Stonycreek River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2011.

What condition is Pa 403 over Stonycreek 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 December 2024.

How much traffic does Pa 403 over Stonycreek River carry?

About 1,033 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Pa 403 over Stonycreek River?

The structure is 261 ft (79.6 m) long with a longest span of 63 ft (19.2 m) and a deck 48 ft wide.

Who owns Pa 403 over Stonycreek River?

It is owned by the State Highway Agency.