US Bridges

State Road over Darby Creek

PoorPosted for load

Delaware County, Pennsylvania · East Township Line 26B13 · Structure no. 000000000014807

Built
1950
75 years old, rebuilt 1995
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
2 main spans
Daily traffic
29,754
2023 count
Owner
State
State Highway Agency

About this bridge

State Road over Darby Creek is a steel stringer/multi-beam or girder carrying State Road over Darby Creek in Delaware County, Pennsylvania. It was built in 1950 and reconstructed in 1995, so it is 75 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. Its operating status is: posted for other load-capacity restriction.

It carries about 29,754 vehicles a day, roughly 4% of them trucks, projected to reach 43,419 by 2032. The structure is 105 ft (32 m) long and 96 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesState Road
CrossesDarby Creek
LocationEast Township Line 26B13
RouteU.S. Route 1
Coordinates39.94493, -75.32721
Functional classUrban Other Principal Arterial

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length105 ft (32 m)
Longest span52 ft (15.8 m)
Deck width96 ft (29.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,754 (2023)
Projected traffic43,419 by 2032
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was State Road over Darby Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1995.

What condition is State Road 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 January 2024.

How much traffic does State Road over Darby Creek carry?

About 29,754 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is State Road over Darby Creek?

The structure is 105 ft (32 m) long with a longest span of 52 ft (15.8 m) and a deck 96 ft wide.

Who owns State Road over Darby Creek?

It is owned by the State Highway Agency.