US Bridges

RTE 3 over Black River Power Canal

Good

Jefferson County, New York · 0.7 MI NE Int Rts 12 & 3 · Structure no. 000000002220280

Built
1982
43 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
575 ft
4 main spans
Daily traffic
7,027
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 3 over Black River Power Canal is a steel continuous stringer/multi-beam or girder carrying RTE 3 over Black River Power Canal in Jefferson County, New York. It was built in 1982, so it is 43 years old, younger 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 7,027 vehicles a day, roughly 5% of them trucks, projected to reach 7,060 by 2041. The structure is 575 ft (175.3 m) long and 48 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRTE 3
CrossesBlack River Power Canal
Location0.7 MI NE Int Rts 12 & 3
RouteState Highway 3
Coordinates43.97551, -75.87406
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length575 ft (175.3 m)
Longest span197 ft (60 m)
Deck width48 ft (14.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,027 (2021)
Projected traffic7,060 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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$8.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 3 over Black River Power Canal built?

It was built in 1982, making it 43 years old in 2025.

What condition is RTE 3 over Black River Power Canal 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 June 2024.

How much traffic does RTE 3 over Black River Power Canal carry?

About 7,027 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is RTE 3 over Black River Power Canal?

The structure is 575 ft (175.3 m) long with a longest span of 197 ft (60 m) and a deck 48 ft wide.

Who owns RTE 3 over Black River Power Canal?

It is owned by the State Highway Agency.