US Bridges

Ramp D over Ohio River Back Channel

Fair

Allegheny County, Pennsylvania · Neville Island Bridge · Structure no. 000000000002777

Built
1975
50 years old, rebuilt 2010
Condition
Fair
inspected November 2022
Type
Girder and Floorbeam System
Steel Continuous
Length
1,370 ft
7 main spans
Daily traffic
2,113
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp D over Ohio River Back Channel is a steel continuous girder and floorbeam system carrying Ramp D over Ohio River Back Channel in Allegheny County, Pennsylvania. It was built in 1975 and reconstructed in 2010, so it is 50 years old, younger 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 2,113 vehicles a day, roughly 17% of them trucks, projected to reach 2,545 by 2032. The structure is 1,370 ft (417.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRamp D
CrossesOhio River Back Channel
LocationNeville Island Bridge
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.50886, -80.13568
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20
Structure length1,370 ft (417.6 m)
Longest span325 ft (99.1 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,113 (2024)
Projected traffic2,545 by 2032
Trucks17%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ramp D over Ohio River Back Channel built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2010.

What condition is Ramp D over Ohio River Back Channel 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 2022.

How much traffic does Ramp D over Ohio River Back Channel carry?

About 2,113 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Ramp D over Ohio River Back Channel?

The structure is 1,370 ft (417.6 m) long with a longest span of 325 ft (99.1 m) and a deck 34 ft wide.

Who owns Ramp D over Ohio River Back Channel?

It is owned by the State Highway Agency.