US Bridges

RTE 206 over Big Brook

Fair

Chenango County, New York · 2.7 MI SE JCT NY-206 & I- · Structure no. 000000001040400

Built
1959
66 years old, rebuilt 1993
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
239 ft
3 main spans
Daily traffic
1,596
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 206 over Big Brook is a steel continuous stringer/multi-beam or girder carrying RTE 206 over Big Brook in Chenango County, New York. It was built in 1959 and reconstructed in 1993, so it is 66 years old, older 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 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 1,596 vehicles a day, roughly 11% of them trucks, projected to reach 1,605 by 2041. The structure is 239 ft (72.8 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE 206
CrossesBig Brook
Location2.7 MI SE JCT NY-206 & I-
RouteState Highway 206
CountyChenango County
StateNew York
Coordinates42.2577, -75.44824
Functional classRural Minor Arterial

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.
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 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length239 ft (72.8 m)
Longest span79 ft (24 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,596 (2021)
Projected traffic1,605 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$3.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 206 over Big Brook built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1993.

What condition is RTE 206 over Big Brook 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 2024.

How much traffic does RTE 206 over Big Brook carry?

About 1,596 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is RTE 206 over Big Brook?

The structure is 239 ft (72.8 m) long with a longest span of 79 ft (24 m) and a deck 34 ft wide.

Who owns RTE 206 over Big Brook?

It is owned by the State Highway Agency.