US Bridges

RTE I90 over RTE 921C

Fair

Oneida County, New York · 0.5M NE of Mohawk River · Structure no. 000000005051759

Built
1953
72 years old, rebuilt 1984
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
152 ft
3 main spans
Daily traffic
20,466
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over RTE 921C is a steel stringer/multi-beam or girder carrying RTE I90 over RTE 921C in Oneida County, New York. It was built in 1953 and reconstructed in 1984, so it is 72 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 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 20,466 vehicles a day, roughly 29% of them trucks, projected to reach 23,580 by 2041. The structure is 152 ft (46.3 m) long and 113 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I90
CrossesRTE 921C
Location0.5M NE of Mohawk River
RouteInterstate 90
CountyOneida County
StateNew York
Coordinates43.11493, -75.21227
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span85 ft (25.9 m)
Deck width113 ft (34.4 m)
Roadway width108 ft (32.9 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
CrossesHighway
Detour if closed0.6 mi (1 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$5.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I90 over RTE 921C built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1984.

What condition is RTE I90 over RTE 921C 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 2023.

How much traffic does RTE I90 over RTE 921C carry?

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

How long is RTE I90 over RTE 921C?

The structure is 152 ft (46.3 m) long with a longest span of 85 ft (25.9 m) and a deck 113 ft wide.

Who owns RTE I90 over RTE 921C?

It is owned by the State Toll Authority.