US Bridges

I376 over Ardmore Blvd.

Fair

Allegheny County, Pennsylvania · I376 over Ardmore Blvd · Structure no. 000000000001182

Built
1951
74 years old, rebuilt 2008
Condition
Fair
inspected June 2023
Type
Arch - Deck
Steel
Length
290 ft
1 main span
Daily traffic
54,792
2023 count
Owner
State
State Highway Agency

About this bridge

I376 over Ardmore Blvd. is a steel arch - deck carrying I376 over Ardmore Blvd. in Allegheny County, Pennsylvania. It was built in 1951 and reconstructed in 2008, so it is 74 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 54,792 vehicles a day, roughly 7% of them trucks, projected to reach 89,768 by 2032. The structure is 290 ft (88.4 m) long and 88 ft wide.

Location

Open in Google Maps
CarriesI376
CrossesArdmore Blvd.
LocationI376 over Ardmore Blvd
RouteInterstate 376
CountyAllegheny County
StatePennsylvania
Coordinates40.43404, -79.86895
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span150 ft (45.7 m)
Deck width88 ft (26.7 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,792 (2023)
Projected traffic89,768 by 2032
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$522,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I376 over Ardmore Blvd. built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2008.

What condition is I376 over Ardmore Blvd. 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 June 2023.

How much traffic does I376 over Ardmore Blvd. carry?

About 54,792 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I376 over Ardmore Blvd.?

The structure is 290 ft (88.4 m) long with a longest span of 150 ft (45.7 m) and a deck 88 ft wide.

Who owns I376 over Ardmore Blvd.?

It is owned by the State Highway Agency.