US Bridges

Karakung Drive over Cobbs Creek / 3588-D2

Fair

Delaware County, Pennsylvania · .5MI.S.LR 23049 26G05 · Structure no. 000000000015152

Built
1989
36 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
1,685
2024 count
Owner
State
State Highway Agency

About this bridge

Karakung Drive over Cobbs Creek / 3588-D2 is a prestressed concrete box beam or girders - multiple carrying Karakung Drive over Cobbs Creek / 3588-D2 in Delaware County, Pennsylvania. It was built in 1989, so it is 36 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 1,685 vehicles a day, roughly 1% of them trucks, projected to reach 1,928 by 2032. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKarakung Drive
CrossesCobbs Creek / 3588-D2
Location.5MI.S.LR 23049 26G05
RouteState Highway 0
CountyDelaware County
StatePennsylvania
Coordinates39.98993, -75.29324
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,685 (2024)
Projected traffic1,928 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Karakung Drive over Cobbs Creek / 3588-D2 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Karakung Drive over Cobbs Creek / 3588-D2 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 Karakung Drive over Cobbs Creek / 3588-D2 carry?

About 1,685 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Karakung Drive over Cobbs Creek / 3588-D2?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 31 ft wide.

Who owns Karakung Drive over Cobbs Creek / 3588-D2?

It is owned by the State Highway Agency.