US Bridges

Battle Ridge RD over Dolphin Run

Good

Allegheny County, Pennsylvania · 539 North of SR 3026 · Structure no. 000000000001348

Built
1929
96 years old, rebuilt 2009
Condition
Good
inspected October 2020
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
2,998
2024 count
Owner
State
State Highway Agency

About this bridge

Battle Ridge RD over Dolphin Run is a concrete slab carrying Battle Ridge RD over Dolphin Run in Allegheny County, Pennsylvania. It was built in 1929 and reconstructed in 2009, so it is 96 years old, older 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 2,998 vehicles a day, roughly 6% of them trucks, projected to reach 3,363 by 2032. The structure is 26 ft (7.9 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBattle Ridge RD
CrossesDolphin Run
Location539 North of SR 3026
RouteState Highway 978
Coordinates40.34969, -80.16448
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating56 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,998 (2024)
Projected traffic3,363 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$267,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Battle Ridge RD over Dolphin Run built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 2009.

What condition is Battle Ridge RD over Dolphin 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 October 2020.

How much traffic does Battle Ridge RD over Dolphin Run carry?

About 2,998 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Battle Ridge RD over Dolphin Run?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 33 ft wide.

Who owns Battle Ridge RD over Dolphin Run?

It is owned by the State Highway Agency.