US Bridges

Mid-Co Expy NB over SEPTA

Fair

Delaware County, Pennsylvania · Near Villanova 14H09 · Structure no. 000000000015143

Built
1990
35 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
1 main span
Daily traffic
51,844
2024 count
Owner
State
State Highway Agency

About this bridge

Mid-Co Expy NB over SEPTA is a steel stringer/multi-beam or girder carrying Mid-Co Expy NB over SEPTA in Delaware County, Pennsylvania. It was built in 1990, so it is 35 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.

It carries about 51,844 vehicles a day, roughly 9% of them trucks, projected to reach 63,262 by 2032. The structure is 113 ft (34.4 m) long and 60 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesMid-Co Expy NB
CrossesSEPTA
LocationNear Villanova 14H09
RouteInterstate 476
CountyDelaware County
StatePennsylvania
Coordinates40.03877, -75.35279
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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 rating110.1 US tons
Inventory rating73 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length113 ft (34.4 m)
Longest span106 ft (32.3 m)
Deck width60 ft (18.4 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,844 (2024)
Projected traffic63,262 by 2032
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.7 mi (14 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mid-Co Expy NB over SEPTA built?

It was built in 1990, making it 35 years old in 2025.

What condition is Mid-Co Expy NB over SEPTA 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 September 2023.

How much traffic does Mid-Co Expy NB over SEPTA carry?

About 51,844 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Mid-Co Expy NB over SEPTA?

The structure is 113 ft (34.4 m) long with a longest span of 106 ft (32.3 m) and a deck 60 ft wide.

Who owns Mid-Co Expy NB over SEPTA?

It is owned by the State Highway Agency.