US Bridges

RTE 12 over Mohawk Adir & No RR

Good

Oneida County, New York · 5.8 MI N JCT SH12 & SH365 · Structure no. 000000001009529

Built
1949
76 years old
Condition
Good
inspected October 2023
Type
Frame
Concrete
Length
46 ft
1 main span
Daily traffic
9,456
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Mohawk Adir & No RR is a concrete frame carrying RTE 12 over Mohawk Adir & No RR in Oneida County, New York. It was built in 1949, so it is 76 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,456 vehicles a day, roughly 10% of them trucks, projected to reach 10,199 by 2041. The structure is 46 ft (14 m) long and 68 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRTE 12
CrossesMohawk Adir & No RR
Location5.8 MI N JCT SH12 & SH365
RouteState Highway 12
Coordinates43.36457, -75.2112
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.1 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span38 ft (11.5 m)
Deck width68 ft (20.7 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,456 (2021)
Projected traffic10,199 by 2041
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

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$4.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 12 over Mohawk Adir & No RR built?

It was built in 1949, making it 76 years old in 2025.

What condition is RTE 12 over Mohawk Adir & No RR 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 October 2023.

How much traffic does RTE 12 over Mohawk Adir & No RR carry?

About 9,456 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is RTE 12 over Mohawk Adir & No RR?

The structure is 46 ft (14 m) long with a longest span of 38 ft (11.5 m) and a deck 68 ft wide.

Who owns RTE 12 over Mohawk Adir & No RR?

It is owned by the State Highway Agency.