US Bridges

Chester Pike over Darby Creek

Poor

Delaware County, Pennsylvania · .1MI.E.OF US-13 36B05 · Structure no. 000000000015405

Built
1931
94 years old
Condition
Poor
inspected November 2023
Type
Other
Steel
Length
85 ft
1 main span
Daily traffic
13,380
2022 count
Owner
County
County Highway Agency

About this bridge

Chester Pike over Darby Creek is a steel other carrying Chester Pike over Darby Creek in Delaware County, Pennsylvania. It was built in 1931, so it is 94 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 13,380 vehicles a day, roughly 4% of them trucks, projected to reach 14,961 by 2042. The structure is 85 ft (25.9 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChester Pike
CrossesDarby Creek
Location.1MI.E.OF US-13 36B05
RouteCounty Highway 0
Coordinates39.91822, -75.26307
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeOther
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length85 ft (25.9 m)
Longest span62 ft (18.9 m)
Deck width86 ft (26.2 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,380 (2022)
Projected traffic14,961 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Chester Pike over Darby Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Chester Pike over Darby Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Chester Pike over Darby Creek carry?

About 13,380 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Chester Pike over Darby Creek?

The structure is 85 ft (25.9 m) long with a longest span of 62 ft (18.9 m) and a deck 86 ft wide.

Who owns Chester Pike over Darby Creek?

It is owned by the County Highway Agency.