US Bridges

RTE 23 over Great Brook

Fair

Chenango County, New York · 1.0 Mi.Nw JCT Rts 23 & 8 · Structure no. 000000001017520

Built
1990
35 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
2,687
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 23 over Great Brook is a prestressed concrete box beam or girders - multiple carrying RTE 23 over Great Brook in Chenango County, New York. It was built in 1990, so it is 35 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 2,687 vehicles a day, roughly 8% of them trucks, projected to reach 2,712 by 2041. The structure is 97 ft (29.6 m) long and 42 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesRTE 23
CrossesGreat Brook
Location1.0 Mi.Nw JCT Rts 23 & 8
RouteState Highway 23
CountyChenango County
StateNew York
Coordinates42.53734, -75.39917
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.8 US tons
Inventory rating61.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span91 ft (27.7 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,687 (2019)
Projected traffic2,712 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 23 over Great Brook built?

It was built in 1990, making it 35 years old in 2025.

What condition is RTE 23 over Great 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 March 2024.

How much traffic does RTE 23 over Great Brook carry?

About 2,687 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is RTE 23 over Great Brook?

The structure is 97 ft (29.6 m) long with a longest span of 91 ft (27.7 m) and a deck 42 ft wide.

Who owns RTE 23 over Great Brook?

It is owned by the State Highway Agency.