US Bridges

County Line Road over Gulph Creek

Fair

Delaware County, Pennsylvania · 1.25 Mi. N. US-30 9-E2 · Structure no. 000000000015409

Built
1963
62 years old
Condition
Fair
inspected December 2023
Type
Frame
Concrete
Length
34 ft
1 main span
Daily traffic
1,668
2022 count
Owner
County
County Highway Agency

About this bridge

County Line Road over Gulph Creek is a concrete frame carrying County Line Road over Gulph Creek in Delaware County, Pennsylvania. It was built in 1963, so it is 62 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 5 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 1,668 vehicles a day, roughly 4% of them trucks, projected to reach 1,858 by 2042. The structure is 34 ft (10.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty Line Road
CrossesGulph Creek
Location1.25 Mi. N. US-30 9-E2
RouteCounty Highway 0
Coordinates40.0555, -75.3513
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width42 ft (12.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,668 (2022)
Projected traffic1,858 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Line Road over Gulph Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is County Line Road over Gulph 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 December 2023.

How much traffic does County Line Road over Gulph Creek carry?

About 1,668 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is County Line Road over Gulph Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 42 ft wide.

Who owns County Line Road over Gulph Creek?

It is owned by the County Highway Agency.