US Bridges

T-609 Colyer RD over Sinking Creek

Fair

Centre County, Pennsylvania · .8 MI from SR 322 · Structure no. 000000000009833

Built
1965
60 years old, rebuilt 2004
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
300
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-609 Colyer RD over Sinking Creek is a steel stringer/multi-beam or girder carrying T-609 Colyer RD over Sinking Creek in Centre County, Pennsylvania. It was built in 1965 and reconstructed in 2004, so it is 60 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 300 vehicles a day, projected to reach 375 by 2045. The structure is 56 ft (17.1 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT-609 Colyer RD
CrossesSinking Creek
Location.8 MI from SR 322
RouteCity Street 0
Coordinates40.78427, -77.67654
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.1 US tons
Inventory rating54 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span55 ft (16.8 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic375 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$835,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-609 Colyer RD over Sinking Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2004.

What condition is T-609 Colyer RD over Sinking 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 April 2023.

How much traffic does T-609 Colyer RD over Sinking Creek carry?

About 300 vehicles per day (2023 count).

How long is T-609 Colyer RD over Sinking Creek?

The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 22 ft wide.

Who owns T-609 Colyer RD over Sinking Creek?

It is owned by the Town or Township Highway Agency.