US Bridges

RTE 80 over Mad Brook

Fair

Chenango County, New York · 1.6 MI E JCT Rts 80 + 12 · Structure no. 000000001030770

Built
1987
38 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
1,763
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 80 over Mad Brook is a prestressed concrete box beam or girders - multiple carrying RTE 80 over Mad Brook in Chenango County, New York. It was built in 1987, so it is 38 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 1,763 vehicles a day, roughly 11% of them trucks, projected to reach 1,839 by 2041. The structure is 95 ft (29 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 80
CrossesMad Brook
Location1.6 MI E JCT Rts 80 + 12
RouteState Highway 80
CountyChenango County
StateNew York
Coordinates42.67968, -75.46802
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length95 ft (29 m)
Longest span91 ft (27.7 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,763 (2019)
Projected traffic1,839 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$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 80 over Mad Brook built?

It was built in 1987, making it 38 years old in 2025.

What condition is RTE 80 over Mad 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 80 over Mad Brook carry?

About 1,763 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is RTE 80 over Mad Brook?

The structure is 95 ft (29 m) long with a longest span of 91 ft (27.7 m) and a deck 36 ft wide.

Who owns RTE 80 over Mad Brook?

It is owned by the State Highway Agency.