US Bridges

Clinton RD over Br.North Br.Robinson Run

Poor

Allegheny County, Pennsylvania · 200 West of SR 3063 · Structure no. 000000000001351

Built
1953
72 years old
Condition
Poor
inspected October 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
21 ft
1 main span
Daily traffic
3,058
2024 count
Owner
State
State Highway Agency

About this bridge

Clinton RD over Br.North Br.Robinson Run is a prestressed concrete box beam or girders - multiple carrying Clinton RD over Br.North Br.Robinson Run in Allegheny County, Pennsylvania. It was built in 1953, so it is 72 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,058 vehicles a day, roughly 6% of them trucks, projected to reach 3,830 by 2032. The structure is 21 ft (6.4 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesClinton RD
CrossesBr.North Br.Robinson Run
Location200 West of SR 3063
RouteState Highway 978
CountyAllegheny County
StatePennsylvania
Coordinates40.40964, -80.19305
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating110.1 US tons
Inventory rating60 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span18 ft (5.5 m)
Deck width36 ft (11.1 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,058 (2024)
Projected traffic3,830 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$57,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Clinton RD over Br.North Br.Robinson Run built?

It was built in 1953, making it 72 years old in 2025.

What condition is Clinton RD over Br.North Br.Robinson Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2022.

How much traffic does Clinton RD over Br.North Br.Robinson Run carry?

About 3,058 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Clinton RD over Br.North Br.Robinson Run?

The structure is 21 ft (6.4 m) long with a longest span of 18 ft (5.5 m) and a deck 36 ft wide.

Who owns Clinton RD over Br.North Br.Robinson Run?

It is owned by the State Highway Agency.