US Bridges

Delaware Expway. over Mifflin ST to Christian

Fair

Philadelphia County, Pennsylvania · Queen Village 3700-G02 · Structure no. 000000000038555

Built
1979
46 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
4,418 ft
67 main spans
Daily traffic
105,077
2024 count
Owner
State
State Highway Agency

About this bridge

Delaware Expway. over Mifflin ST to Christian is a prestressed concrete continuous stringer/multi-beam or girder carrying Delaware Expway. over Mifflin ST to Christian in Philadelphia County, Pennsylvania. It was built in 1979, so it is 46 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 6 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 105,077 vehicles a day, roughly 5% of them trucks, projected to reach 101,093 by 2032. The structure is 4,418 ft (1,346.6 m) long and 140 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesDelaware Expway.
CrossesMifflin ST to Christian
LocationQueen Village 3700-G02
RouteInterstate 95
CountyPhiladelphia County
StatePennsylvania
Coordinates39.92364, -75.14721
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans67 (+1 approach)
Design loadHS 20 + Mod
Structure length4,418 ft (1,346.6 m)
Longest span93 ft (28.3 m)
Deck width140 ft (42.6 m)
Roadway width136 ft (41.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105,077 (2024)
Projected traffic101,093 by 2032
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$94.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Delaware Expway. over Mifflin ST to Christian built?

It was built in 1979, making it 46 years old in 2025.

What condition is Delaware Expway. over Mifflin ST to Christian 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 August 2023.

How much traffic does Delaware Expway. over Mifflin ST to Christian carry?

About 105,077 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Delaware Expway. over Mifflin ST to Christian?

The structure is 4,418 ft (1,346.6 m) long with a longest span of 93 ft (28.3 m) and a deck 140 ft wide.

Who owns Delaware Expway. over Mifflin ST to Christian?

It is owned by the State Highway Agency.