US Bridges

Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf

Fair

Allegheny County, Pennsylvania · Fort Duquesne Bridge · Structure no. 000000000002821

Built
1968
57 years old, rebuilt 2010
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,009 ft
8 main spans
Daily traffic
2,709
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf is a steel stringer/multi-beam or girder carrying Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf in Allegheny County, Pennsylvania. It was built in 1968 and reconstructed in 2010, so it is 57 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 5 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 2,709 vehicles a day, roughly 7% of them trucks, projected to reach 21,430 by 2032. The structure is 1,009 ft (307.5 m) long and 25 ft wide.

CarriesRamp G to Ft. Duq
CrossesAlleg.Riv. Ft Duq Warf
LocationFort Duquesne Bridge
RouteState Highway 0
Coordinates40.44313, -80.00845
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length1,009 ft (307.5 m)
Longest span125 ft (38.1 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,709 (2024)
Projected traffic21,430 by 2032
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$1.3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2010.

What condition is Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf 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 February 2023.

How much traffic does Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf carry?

About 2,709 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf?

The structure is 1,009 ft (307.5 m) long with a longest span of 125 ft (38.1 m) and a deck 25 ft wide.

Who owns Ramp G to Ft. Duq over Alleg.Riv. Ft Duq Warf?

It is owned by the State Highway Agency.