US Bridges

Main Street over Black River

Good

Jefferson County, New York · 0.4 MI North of Rte. 3 · Structure no. 000000003338950

Built
2005
20 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
2 main spans
Daily traffic
1,819
2021 count
Owner
County
County Highway Agency

About this bridge

Main Street over Black River is a steel continuous stringer/multi-beam or girder carrying Main Street over Black River in Jefferson County, New York. It was built in 2005, so it is 20 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 1,819 vehicles a day, roughly 8% of them trucks, projected to reach 2,250 by 2041. The structure is 224 ft (68.3 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMain Street
CrossesBlack River
Location0.4 MI North of Rte. 3
Coordinates44.01159, -75.79452
Functional classUrban Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length224 ft (68.3 m)
Longest span110 ft (33.5 m)
Deck width46 ft (14 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,819 (2021)
Projected traffic2,250 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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$3.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Black River built?

It was built in 2005, making it 20 years old in 2025.

What condition is Main Street over Black River 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 Main Street over Black River carry?

About 1,819 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Main Street over Black River?

The structure is 224 ft (68.3 m) long with a longest span of 110 ft (33.5 m) and a deck 46 ft wide.

Who owns Main Street over Black River?

It is owned by the County Highway Agency.