US Bridges

Constitution Bl over Elkhorn Run

Poor

Beaver County, Pennsylvania · 150 North of TWP.RD.490 · Structure no. 000000000003480

Built
1930
95 years old
Condition
Poor
inspected December 2022
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
9,739
2023 count
Owner
State
State Highway Agency

About this bridge

Constitution Bl over Elkhorn Run is a concrete culvert carrying Constitution Bl over Elkhorn Run in Beaver County, Pennsylvania. It was built in 1930, so it is 95 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 9,739 vehicles a day, roughly 4% of them trucks, projected to reach 10,981 by 2032. The structure is 23 ft (7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesConstitution Bl
CrossesElkhorn Run
Location150 North of TWP.RD.490
RouteState Highway 51
CountyBeaver County
StatePennsylvania
Coordinates40.67236, -80.25936
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span19 ft (5.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,739 (2023)
Projected traffic10,981 by 2032
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$89,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Constitution Bl over Elkhorn Run built?

It was built in 1930, making it 95 years old in 2025.

What condition is Constitution Bl over Elkhorn 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 December 2022.

How much traffic does Constitution Bl over Elkhorn Run carry?

About 9,739 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Constitution Bl over Elkhorn Run?

The structure is 23 ft (7 m) long with a longest span of 19 ft (5.8 m).

Who owns Constitution Bl over Elkhorn Run?

It is owned by the State Highway Agency.