US Bridges

Hayden Blvd (SR51) over Fallen Timber Run

Good

Allegheny County, Pennsylvania · @ Inter.W/Weigle Hill Rd. · Structure no. 000000000054105

Built
2018
7 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
20,208
2024 count
Owner
State
State Highway Agency

About this bridge

Hayden Blvd (SR51) over Fallen Timber Run is a concrete culvert carrying Hayden Blvd (SR51) over Fallen Timber Run in Allegheny County, Pennsylvania. It was built in 2018, so it is 7 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,208 vehicles a day, roughly 6% of them trucks, projected to reach 25,458 by 2039. The structure is 32 ft (9.8 m) long and 96 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesHayden Blvd (SR51)
CrossesFallen Timber Run
Location@ Inter.W/Weigle Hill Rd.
RouteState Highway 51
Coordinates40.26264, -79.87822
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width96 ft (29.3 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,208 (2024)
Projected traffic25,458 by 2039
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hayden Blvd (SR51) over Fallen Timber Run built?

It was built in 2018, making it 7 years old in 2025.

What condition is Hayden Blvd (SR51) over Fallen Timber Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Hayden Blvd (SR51) over Fallen Timber Run carry?

About 20,208 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Hayden Blvd (SR51) over Fallen Timber Run?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 96 ft wide.

Who owns Hayden Blvd (SR51) over Fallen Timber Run?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).