US Bridges

Island Avenue over Septa;frontage Road

Fair

Philadelphia County, Pennsylvania · Airport High SPEED3699B07 · Structure no. 000000000038964

Built
1985
40 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
284 ft
1 main span
Daily traffic
—
Owner
State
State Highway Agency

About this bridge

Island Avenue over Septa;frontage Road is a prestressed concrete box beam or girders - multiple carrying Island Avenue over Septa;frontage Road in Philadelphia County, Pennsylvania. It was built in 1985, so it is 40 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

No traffic count is recorded. The structure is 284 ft (86.6 m) long and 98 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIsland Avenue
CrossesSepta;frontage Road
LocationAirport High SPEED3699B07
RouteState Highway 0
CountyPhiladelphia County
StatePennsylvania
Coordinates39.89933, -75.23867
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating49.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length284 ft (86.6 m)
Longest span100 ft (30.5 m)
Deck width98 ft (29.9 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic34,263 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Island Avenue over Septa;frontage Road built?

It was built in 1985, making it 40 years old in 2025.

What condition is Island Avenue over Septa;frontage Road 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 May 2024.

How much traffic does Island Avenue over Septa;frontage Road carry?

No traffic count is recorded for this structure.

How long is Island Avenue over Septa;frontage Road?

The structure is 284 ft (86.6 m) long with a longest span of 100 ft (30.5 m) and a deck 98 ft wide.

Who owns Island Avenue over Septa;frontage Road?

It is owned by the State Highway Agency.