US Bridges

RTE 12 over Gilmore Brook

Fair

Chenango County, New York · 2.9 MI S JCT Rts 12 & 23 · Structure no. 000000001009340

Built
1999
26 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
78 ft
1 main span
Daily traffic
6,350
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Gilmore Brook is a steel stringer/multi-beam or girder carrying RTE 12 over Gilmore Brook in Chenango County, New York. It was built in 1999, so it is 26 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 6,350 vehicles a day, roughly 9% of them trucks, projected to reach 6,477 by 2041. The structure is 78 ft (23.8 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE 12
CrossesGilmore Brook
Location2.9 MI S JCT Rts 12 & 23
RouteState Highway 12
CountyChenango County
StateNew York
Coordinates42.49646, -75.52994
Functional classUrban Other Principal 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length78 ft (23.8 m)
Longest span77 ft (23.4 m)
Deck width54 ft (16.6 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,350 (2020)
Projected traffic6,477 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Gilmore Brook built?

It was built in 1999, making it 26 years old in 2025.

What condition is RTE 12 over Gilmore 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 May 2023.

How much traffic does RTE 12 over Gilmore Brook carry?

About 6,350 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is RTE 12 over Gilmore Brook?

The structure is 78 ft (23.8 m) long with a longest span of 77 ft (23.4 m) and a deck 54 ft wide.

Who owns RTE 12 over Gilmore Brook?

It is owned by the State Highway Agency.