US Bridges

RTE 12 over Mohawk Adirondack & Nort

Fair

Lewis County, New York · .2 MI S JCT SH12 & SH 12D · Structure no. 000000001009560

Built
1950
75 years old, rebuilt 1994
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
76 ft
1 main span
Daily traffic
5,391
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Mohawk Adirondack & Nort is a steel stringer/multi-beam or girder carrying RTE 12 over Mohawk Adirondack & Nort in Lewis County, New York. It was built in 1950 and reconstructed in 1994, so it is 75 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 5,391 vehicles a day, roughly 13% of them trucks, projected to reach 5,442 by 2041. The structure is 76 ft (23.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 12
CrossesMohawk Adirondack & Nort
Location.2 MI S JCT SH12 & SH 12D
RouteState Highway 12
CountyLewis County
StateNew York
Coordinates43.61239, -75.36509
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionOctober 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length76 ft (23.2 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,391 (2016)
Projected traffic5,442 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 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$4.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 12 over Mohawk Adirondack & Nort built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1994.

What condition is RTE 12 over Mohawk Adirondack & Nort 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 October 2024.

How much traffic does RTE 12 over Mohawk Adirondack & Nort carry?

About 5,391 vehicles per day (2016 count), of which roughly 13% are trucks.

How long is RTE 12 over Mohawk Adirondack & Nort?

The structure is 76 ft (23.2 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns RTE 12 over Mohawk Adirondack & Nort?

It is owned by the State Highway Agency.