US Bridges

RTE 3A over Black Rvr Pwr Ctr

Good

Jefferson County, New York · 0.3 MI NE of Rte. 3 · Structure no. 000000003339110

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
2,312
2021 count
Owner
County
County Highway Agency

About this bridge

RTE 3A over Black Rvr Pwr Ctr is a prestressed concrete box beam or girders - multiple carrying RTE 3A over Black Rvr Pwr Ctr in Jefferson County, New York. It was built in 2003, so it is 22 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 2,312 vehicles a day, roughly 19% of them trucks, projected to reach 2,322 by 2041. The structure is 105 ft (32 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE 3A
CrossesBlack Rvr Pwr Ctr
Location0.3 MI NE of Rte. 3
RouteState Highway 3A
Coordinates44.03464, -75.6785
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length105 ft (32 m)
Longest span102 ft (31 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,312 (2021)
Projected traffic2,322 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 3A over Black Rvr Pwr Ctr built?

It was built in 2003, making it 22 years old in 2025.

What condition is RTE 3A over Black Rvr Pwr Ctr 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 3A over Black Rvr Pwr Ctr carry?

About 2,312 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is RTE 3A over Black Rvr Pwr Ctr?

The structure is 105 ft (32 m) long with a longest span of 102 ft (31 m) and a deck 41 ft wide.

Who owns RTE 3A over Black Rvr Pwr Ctr?

It is owned by the County Highway Agency.