US Bridges

RTE 3 over Mohawk Adir & No

Good

Lewis County, New York · 6.7 MI NE JCT SH3 & SH 3A · Structure no. 000000001000630

Built
1960
65 years old, rebuilt 2019
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
2,690
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 3 over Mohawk Adir & No is a steel stringer/multi-beam or girder carrying RTE 3 over Mohawk Adir & No in Lewis County, New York. It was built in 1960 and reconstructed in 2019, so it is 65 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,690 vehicles a day, roughly 9% of them trucks, projected to reach 2,715 by 2041. The structure is 58 ft (17.7 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 3
CrossesMohawk Adir & No
Location6.7 MI NE JCT SH3 & SH 3A
RouteState Highway 3
CountyLewis County
StateNew York
Coordinates44.07415, -75.4637
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating56.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span54 ft (16.4 m)
Deck width43 ft (13.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,690 (2021)
Projected traffic2,715 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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$1.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 3 over Mohawk Adir & No built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2019.

What condition is RTE 3 over Mohawk Adir & No 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 December 2023.

How much traffic does RTE 3 over Mohawk Adir & No carry?

About 2,690 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is RTE 3 over Mohawk Adir & No?

The structure is 58 ft (17.7 m) long with a longest span of 54 ft (16.4 m) and a deck 43 ft wide.

Who owns RTE 3 over Mohawk Adir & No?

It is owned by the State Highway Agency.