US Bridges

Ramp D to SR 65 SB over Chateau St. N&s RR

Good

Allegheny County, Pennsylvania · SR 65 Marshall Ave. Inter · Structure no. 000000000040852

Built
1972
53 years old, rebuilt 2014
Condition
Good
inspected May 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
1,192 ft
3 main spans
Daily traffic
4,456
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp D to SR 65 SB over Chateau St. N&s RR is a steel continuous girder and floorbeam system carrying Ramp D to SR 65 SB over Chateau St. N&s RR in Allegheny County, Pennsylvania. It was built in 1972 and reconstructed in 2014, so it is 53 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 4,456 vehicles a day, roughly 7% of them trucks, projected to reach 9,617 by 2032. The structure is 1,192 ft (363.3 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRamp D to SR 65 SB
CrossesChateau St. N&s RR
LocationSR 65 Marshall Ave. Inter
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.45833, -80.03333
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+11 approach)
Design loadHS 20
Structure length1,192 ft (363.3 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic4,456 (2024)
Projected traffic9,617 by 2032
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
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$2.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp D to SR 65 SB over Chateau St. N&s RR built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2014.

What condition is Ramp D to SR 65 SB over Chateau St. N&s RR 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 May 2024.

How much traffic does Ramp D to SR 65 SB over Chateau St. N&s RR carry?

About 4,456 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp D to SR 65 SB over Chateau St. N&s RR?

The structure is 1,192 ft (363.3 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns Ramp D to SR 65 SB over Chateau St. N&s RR?

It is owned by the State Highway Agency.