US Bridges

RTE 812 over Black Rv Overflow

Fair

Lewis County, New York · 3.5MI N JCT Rts 12 & 812 · Structure no. 000000001074780

Built
1992
33 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
349 ft
3 main spans
Daily traffic
4,284
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 812 over Black Rv Overflow is a steel continuous stringer/multi-beam or girder carrying RTE 812 over Black Rv Overflow in Lewis County, New York. It was built in 1992, so it is 33 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 6 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 4,284 vehicles a day, roughly 8% of them trucks, projected to reach 4,324 by 2041. The structure is 349 ft (106.4 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRTE 812
CrossesBlack Rv Overflow
Location3.5MI N JCT Rts 12 & 812
RouteState Highway 812
Coordinates43.82246, -75.46365
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating43 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length349 ft (106.4 m)
Longest span138 ft (42 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,284 (2016)
Projected traffic4,324 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$5.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 812 over Black Rv Overflow built?

It was built in 1992, making it 33 years old in 2025.

What condition is RTE 812 over Black Rv Overflow 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 September 2024.

How much traffic does RTE 812 over Black Rv Overflow carry?

About 4,284 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is RTE 812 over Black Rv Overflow?

The structure is 349 ft (106.4 m) long with a longest span of 138 ft (42 m) and a deck 46 ft wide.

Who owns RTE 812 over Black Rv Overflow?

It is owned by the State Highway Agency.