US Bridges

RTE I390 over County Road 121

Fair

Steuben County, New York · .2 Mile West of Cohocton · Structure no. 000000001090691

Built
1976
49 years old, rebuilt 2017
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
107 ft
1 main span
Daily traffic
5,546
2013 count
Owner
State
State Highway Agency

About this bridge

RTE I390 over County Road 121 is a prestressed concrete stringer/multi-beam or girder carrying RTE I390 over County Road 121 in Steuben County, New York. It was built in 1976 and reconstructed in 2017, so it is 49 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 5 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 5,546 vehicles a day, roughly 37% of them trucks. The structure is 107 ft (32.6 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I390
CrossesCounty Road 121
Location.2 Mile West of Cohocton
RouteInterstate 390
CountySteuben County
StateNew York
Coordinates42.49727, -77.51111
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span103 ft (31.3 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,546 (2013)
Projected traffic—
Trucks37%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$3.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I390 over County Road 121 built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2017.

What condition is RTE I390 over County Road 121 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 August 2023.

How much traffic does RTE I390 over County Road 121 carry?

About 5,546 vehicles per day (2013 count), of which roughly 37% are trucks.

How long is RTE I390 over County Road 121?

The structure is 107 ft (32.6 m) long with a longest span of 103 ft (31.3 m) and a deck 44 ft wide.

Who owns RTE I390 over County Road 121?

It is owned by the State Highway Agency.