US Bridges

T-307 over Kettle Creek

Fair

Clinton County, Pennsylvania · 3.1 MI N Alvin R Bush Dam · Structure no. 000000000012402

Built
1899
126 years old, rebuilt 2005
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
149 ft
2 main spans
Daily traffic
125
2023 count
Owner
County
County Highway Agency

About this bridge

T-307 over Kettle Creek is a steel continuous stringer/multi-beam or girder carrying T-307 over Kettle Creek in Clinton County, Pennsylvania. It was built in 1899 and reconstructed in 2005, so it is 126 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 125 vehicles a day, roughly 1% of them trucks, projected to reach 175 by 2045. The structure is 149 ft (45.4 m) long and 15 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesT-307
CrossesKettle Creek
Location3.1 MI N Alvin R Bush Dam
RouteCity Street 0
Coordinates41.40492, -77.92182
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

MaterialSteel Continuous
DeckOpen grating
Main spans2
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span74 ft (22.6 m)
Deck width15 ft (4.5 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic175 by 2045
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T-307 over Kettle Creek built?

It was built in 1899, making it 126 years old in 2025. It was reconstructed in 2005.

What condition is T-307 over Kettle 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 August 2023.

How much traffic does T-307 over Kettle Creek carry?

About 125 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T-307 over Kettle Creek?

The structure is 149 ft (45.4 m) long with a longest span of 74 ft (22.6 m) and a deck 15 ft wide.

Who owns T-307 over Kettle Creek?

It is owned by the County Highway Agency.