US Bridges

Constitution Bl over Dilworth Run

Fair

Beaver County, Pennsylvania · 1/4 Mi.S.E.Of TWP.RD.625 · Structure no. 000000000003500

Built
1950
75 years old, rebuilt 1990
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
9,967
2024 count
Owner
State
State Highway Agency

About this bridge

Constitution Bl over Dilworth Run is a concrete slab carrying Constitution Bl over Dilworth Run in Beaver County, Pennsylvania. It was built in 1950 and reconstructed in 1990, so it is 75 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 9,967 vehicles a day, roughly 10% of them trucks, projected to reach 11,051 by 2032. The structure is 32 ft (9.8 m) long and 90 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesConstitution Bl
CrossesDilworth Run
Location1/4 Mi.S.E.Of TWP.RD.625
RouteState Highway 51
CountyBeaver County
StatePennsylvania
Coordinates40.81233, -80.45776
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width90 ft (27.4 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,967 (2024)
Projected traffic11,051 by 2032
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 Constitution Bl over Dilworth Run built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is Constitution Bl over Dilworth Run 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 August 2023.

How much traffic does Constitution Bl over Dilworth Run carry?

About 9,967 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Constitution Bl over Dilworth Run?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 90 ft wide.

Who owns Constitution Bl over Dilworth Run?

It is owned by the State Highway Agency.