US Bridges

RTE 3 over Mohawk Adir & No

Fair

Lewis County, New York · 0.3 M E of Harrisville · Structure no. 000000001000650

Built
1987
38 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
154 ft
3 main spans
Daily traffic
3,138
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 3 over Mohawk Adir & No is a prestressed concrete continuous box beam or girders - multiple carrying RTE 3 over Mohawk Adir & No in Lewis County, New York. It was built in 1987, so it is 38 years old, younger 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 3,138 vehicles a day, roughly 13% of them trucks, projected to reach 3,167 by 2041. The structure is 154 ft (46.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 3
CrossesMohawk Adir & No
Location0.3 M E of Harrisville
RouteState Highway 3
CountyLewis County
StateNew York
Coordinates44.15415, -75.31567
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating35.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span57 ft (17.3 m)
Deck width42 ft (12.8 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,138 (2016)
Projected traffic3,167 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$1.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 3 over Mohawk Adir & No built?

It was built in 1987, making it 38 years old in 2025.

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

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

About 3,138 vehicles per day (2016 count), of which roughly 13% are trucks.

How long is RTE 3 over Mohawk Adir & No?

The structure is 154 ft (46.9 m) long with a longest span of 57 ft (17.3 m) and a deck 42 ft wide.

Who owns RTE 3 over Mohawk Adir & No?

It is owned by the State Highway Agency.