US Bridges

RTE 7 over Unadilla River

Fair

Otsego County, New York · JCT SH 7 & Unadilla River · Structure no. 000000001003860

Built
2002
23 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
2 main spans
Daily traffic
3,446
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 7 over Unadilla River is a steel continuous stringer/multi-beam or girder carrying RTE 7 over Unadilla River in Otsego County, New York. It was built in 2002, so it is 23 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 3,446 vehicles a day, roughly 5% of them trucks, projected to reach 4,263 by 2041. The structure is 296 ft (90.2 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRTE 7
CrossesUnadilla River
LocationJCT SH 7 & Unadilla River
RouteState Highway 7
CountyOtsego County
StateNew York
Coordinates42.31744, -75.40983
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length296 ft (90.2 m)
Longest span152 ft (46.3 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,446 (2019)
Projected traffic4,263 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$4.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 7 over Unadilla River built?

It was built in 2002, making it 23 years old in 2025.

What condition is RTE 7 over Unadilla River 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 September 2024.

How much traffic does RTE 7 over Unadilla River carry?

About 3,446 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is RTE 7 over Unadilla River?

The structure is 296 ft (90.2 m) long with a longest span of 152 ft (46.3 m) and a deck 43 ft wide.

Who owns RTE 7 over Unadilla River?

It is owned by the State Highway Agency.