US Bridges

RTE I90 over Mohawk River

Fair

Oneida County, New York · 4.48 MI W Int 31 on I-90 · Structure no. 000000005513009

Built
1955
70 years old, rebuilt 2012
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
384 ft
3 main spans
Daily traffic
20,466
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Mohawk River is a steel continuous stringer/multi-beam or girder carrying RTE I90 over Mohawk River in Oneida County, New York. It was built in 1955 and reconstructed in 2012, so it is 70 years old, older 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 20,466 vehicles a day, roughly 29% of them trucks, projected to reach 23,580 by 2041. The structure is 384 ft (117 m) long and 113 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

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CarriesRTE I90
CrossesMohawk River
Location4.48 MI W Int 31 on I-90
RouteInterstate 90
CountyOneida County
StateNew York
Coordinates43.1353, -75.28486
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating79 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length384 ft (117 m)
Longest span140 ft (42.7 m)
Deck width113 ft (34.4 m)
Roadway width110 ft (33.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,466 (2020)
Projected traffic23,580 by 2041
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 km)
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$11.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I90 over Mohawk River built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2012.

What condition is RTE I90 over Mohawk 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 I90 over Mohawk River carry?

About 20,466 vehicles per day (2020 count), of which roughly 29% are trucks.

How long is RTE I90 over Mohawk River?

The structure is 384 ft (117 m) long with a longest span of 140 ft (42.7 m) and a deck 113 ft wide.

Who owns RTE I90 over Mohawk River?

It is owned by the State Toll Authority.