US Bridges

RTE 320 over Chenango River

Good

Chenango County, New York · JCT SH 320 & Chenango Riv · Structure no. 000000001045670

Built
1994
31 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
1 main span
Daily traffic
3,845
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 320 over Chenango River is a steel stringer/multi-beam or girder carrying RTE 320 over Chenango River in Chenango County, New York. It was built in 1994, so it is 31 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,845 vehicles a day, roughly 8% of them trucks, projected to reach 4,757 by 2041. The structure is 157 ft (47.9 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRTE 320
CrossesChenango River
LocationJCT SH 320 & Chenango Riv
RouteState Highway 320
Coordinates42.55347, -75.52316
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating103 US tons
Inventory rating61 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length157 ft (47.9 m)
Longest span155 ft (47.2 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,845 (2020)
Projected traffic4,757 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$2.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 320 over Chenango River built?

It was built in 1994, making it 31 years old in 2025.

What condition is RTE 320 over Chenango River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does RTE 320 over Chenango River carry?

About 3,845 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is RTE 320 over Chenango River?

The structure is 157 ft (47.9 m) long with a longest span of 155 ft (47.2 m) and a deck 36 ft wide.

Who owns RTE 320 over Chenango River?

It is owned by the State Highway Agency.