US Bridges

RTE 26 over Unknown Creek

Fair

Chenango County, New York · 4.1 MI SW JCT SH 26 + SH · Structure no. 000000001073910

Built
1986
39 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
920
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 26 over Unknown Creek is a concrete culvert carrying RTE 26 over Unknown Creek in Chenango County, New York. It was built in 1986, so it is 39 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 920 vehicles a day, roughly 13% of them trucks, projected to reach 1,288 by 2038. The structure is 22 ft (6.7 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE 26
CrossesUnknown Creek
Location4.1 MI SW JCT SH 26 + SH
RouteState Highway 26
CountyChenango County
StateNew York
Coordinates42.59308, -75.8435
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.1 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width58 ft (17.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2018)
Projected traffic1,288 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$398,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 26 over Unknown Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is RTE 26 over Unknown 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 July 2024.

How much traffic does RTE 26 over Unknown Creek carry?

About 920 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is RTE 26 over Unknown Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 58 ft wide.

Who owns RTE 26 over Unknown Creek?

It is owned by the State Highway Agency.