US Bridges

Tremperkill Road over Tremper Kill

Fair

Delaware County, New York · 0.1 MI So Int Bws Road #1 · Structure no. 000000003351750

Built
1996
29 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
348
2018 count
Owner
County
County Highway Agency

About this bridge

Tremperkill Road over Tremper Kill is a steel stringer/multi-beam or girder carrying Tremperkill Road over Tremper Kill in Delaware County, New York. It was built in 1996, so it is 29 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 348 vehicles a day, roughly 10% of them trucks, projected to reach 363 by 2041. The structure is 46 ft (14 m) long and 31 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesTremperkill Road
CrossesTremper Kill
Location0.1 MI So Int Bws Road #1
CountyDelaware County
StateNew York
Coordinates42.11983, -74.82052
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating100 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2018)
Projected traffic363 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tremperkill Road over Tremper Kill built?

It was built in 1996, making it 29 years old in 2025.

What condition is Tremperkill Road over Tremper Kill 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 September 2024.

How much traffic does Tremperkill Road over Tremper Kill carry?

About 348 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Tremperkill Road over Tremper Kill?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 31 ft wide.

Who owns Tremperkill Road over Tremper Kill?

It is owned by the County Highway Agency.