US Bridges

Main Street over Cobbs Creek

Fair

Delaware County, Pennsylvania · W.Cobbs Creek Pk. 36D05 · Structure no. 000000000015217

Built
1909
116 years old
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
63 ft
1 main span
Daily traffic
12,715
2024 count
Owner
State
State Highway Agency

About this bridge

Main Street over Cobbs Creek is a concrete arch - deck carrying Main Street over Cobbs Creek in Delaware County, Pennsylvania. It was built in 1909, so it is 116 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 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 12,715 vehicles a day, roughly 10% of them trucks, projected to reach 16,562 by 2035. The structure is 63 ft (19.2 m) long and 64 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMain Street
CrossesCobbs Creek
LocationW.Cobbs Creek Pk. 36D05
RouteState Highway 0
Coordinates39.91681, -75.24707
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating34 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width64 ft (19.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,715 (2024)
Projected traffic16,562 by 2035
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$218,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Cobbs Creek built?

It was built in 1909, making it 116 years old in 2025.

What condition is Main Street over Cobbs Creek 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 January 2024.

How much traffic does Main Street over Cobbs Creek carry?

About 12,715 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Main Street over Cobbs Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 64 ft wide.

Who owns Main Street over Cobbs Creek?

It is owned by the State Highway Agency.