US Bridges

Gibsonia Road over Deer Creek

Fair

Allegheny County, Pennsylvania · 500FT W of Oak RD · Structure no. 000000000001335

Built
1966
59 years old, rebuilt 2021
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
10,010
2024 count
Owner
State
State Highway Agency

About this bridge

Gibsonia Road over Deer Creek is a prestressed concrete box beam or girders - multiple carrying Gibsonia Road over Deer Creek in Allegheny County, Pennsylvania. It was built in 1966 and reconstructed in 2021, so it is 59 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 6 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 10,010 vehicles a day, roughly 4% of them trucks, projected to reach 11,425 by 2032. The structure is 48 ft (14.6 m) long and 45 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGibsonia Road
CrossesDeer Creek
Location500FT W of Oak RD
RouteState Highway 910
CountyAllegheny County
StatePennsylvania
Coordinates40.61834, -79.90521
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length48 ft (14.6 m)
Longest span44 ft (13.4 m)
Deck width45 ft (13.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,010 (2024)
Projected traffic11,425 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Gibsonia Road over Deer Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2021.

What condition is Gibsonia Road over Deer 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 October 2023.

How much traffic does Gibsonia Road over Deer Creek carry?

About 10,010 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Gibsonia Road over Deer Creek?

The structure is 48 ft (14.6 m) long with a longest span of 44 ft (13.4 m) and a deck 45 ft wide.

Who owns Gibsonia Road over Deer Creek?

It is owned by the State Highway Agency.