US Bridges

Ramp a over Moon Run

Fair

Allegheny County, Pennsylvania · 200SOUTH East of SR 0051 · Structure no. 000000000002776

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
8,562
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp a over Moon Run is a concrete culvert carrying Ramp a over Moon Run in Allegheny County, Pennsylvania. It was built in 1970, so it is 55 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 8,562 vehicles a day, roughly 7% of them trucks, projected to reach 8,774 by 2032. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRamp a
CrossesMoon Run
Location200SOUTH East of SR 0051
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.50265, -80.13456
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
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 length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,562 (2024)
Projected traffic8,774 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Ramp a over Moon Run built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ramp a over Moon 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 November 2023.

How much traffic does Ramp a over Moon Run carry?

About 8,562 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp a over Moon Run?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns Ramp a over Moon Run?

It is owned by the State Highway Agency.