US Bridges

Noblestown RD over Ohio C. SR3117 Robinson

Fair

Allegheny County, Pennsylvania · 1/2 MI W of US 0079 · Structure no. 000000000001781

Built
1972
53 years old, rebuilt 2008
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
596 ft
6 main spans
Daily traffic
6,099
2024 count
Owner
State
State Highway Agency

About this bridge

Noblestown RD over Ohio C. SR3117 Robinson is a prestressed concrete stringer/multi-beam or girder carrying Noblestown RD over Ohio C. SR3117 Robinson in Allegheny County, Pennsylvania. It was built in 1972 and reconstructed in 2008, so it is 53 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 6,099 vehicles a day, roughly 9% of them trucks, projected to reach 6,526 by 2032. The structure is 596 ft (181.7 m) long and 66 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNoblestown RD
CrossesOhio C. SR3117 Robinson
Location1/2 MI W of US 0079
RouteState Highway 0
Coordinates40.39583, -80.10964
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
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 protection7 GoodSome minor problems.
Last inspectionOctober 2022
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length596 ft (181.7 m)
Longest span113 ft (34.4 m)
Deck width66 ft (20 m)
Roadway width61 ft (18.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,099 (2024)
Projected traffic6,526 by 2032
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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 proposedNone recorded
Estimated improvement cost$8.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Noblestown RD over Ohio C. SR3117 Robinson built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2008.

What condition is Noblestown RD over Ohio C. SR3117 Robinson 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 2022.

How much traffic does Noblestown RD over Ohio C. SR3117 Robinson carry?

About 6,099 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Noblestown RD over Ohio C. SR3117 Robinson?

The structure is 596 ft (181.7 m) long with a longest span of 113 ft (34.4 m) and a deck 66 ft wide.

Who owns Noblestown RD over Ohio C. SR3117 Robinson?

It is owned by the State Highway Agency.