US Bridges

RTE I81 over RTE 12 RTE 12

Fair

Jefferson County, New York · 5.0 MI SW JCT Rts 12 + 26 · Structure no. 000000001009771

Built
1965
60 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
233 ft
4 main spans
Daily traffic
3,374
2015 count
Owner
State
State Highway Agency

About this bridge

RTE I81 over RTE 12 RTE 12 is a steel stringer/multi-beam or girder carrying RTE I81 over RTE 12 RTE 12 in Jefferson County, New York. It was built in 1965, so it is 60 years old, older 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 3,374 vehicles a day, roughly 32% of them trucks. The structure is 233 ft (71 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE I81
CrossesRTE 12 RTE 12
Location5.0 MI SW JCT Rts 12 + 26
RouteInterstate 81
CountyJefferson County
StateNew York
Coordinates44.29323, -75.97255
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length233 ft (71 m)
Longest span73 ft (22.2 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,374 (2015)
Projected traffic—
Trucks32%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$3.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I81 over RTE 12 RTE 12 built?

It was built in 1965, making it 60 years old in 2025.

What condition is RTE I81 over RTE 12 RTE 12 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 October 2023.

How much traffic does RTE I81 over RTE 12 RTE 12 carry?

About 3,374 vehicles per day (2015 count), of which roughly 32% are trucks.

How long is RTE I81 over RTE 12 RTE 12?

The structure is 233 ft (71 m) long with a longest span of 73 ft (22.2 m) and a deck 45 ft wide.

Who owns RTE I81 over RTE 12 RTE 12?

It is owned by the State Highway Agency.