US Bridges

RTE I81 over RTE 12

Fair

Jefferson County, New York · JCT I-81 & Nys 12 · Structure no. 000000001009682

Built
1959
66 years old, rebuilt 2003
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
149 ft
3 main spans
Daily traffic
11,646
2019 count
Owner
State
State Highway Agency

About this bridge

RTE I81 over RTE 12 is a steel stringer/multi-beam or girder carrying RTE I81 over RTE 12 in Jefferson County, New York. It was built in 1959 and reconstructed in 2003, so it is 66 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 11,646 vehicles a day, roughly 14% of them trucks, projected to reach 15,198 by 2041. The structure is 149 ft (45.4 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I81
CrossesRTE 12
LocationJCT I-81 & Nys 12
RouteInterstate 81
CountyJefferson County
StateNew York
Coordinates44.00096, -75.91973
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span66 ft (20.1 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,646 (2019)
Projected traffic15,198 by 2041
Trucks14%
Lanes on structure2
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$2.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I81 over RTE 12 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2003.

What condition is RTE I81 over 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 carry?

About 11,646 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is RTE I81 over RTE 12?

The structure is 149 ft (45.4 m) long with a longest span of 66 ft (20.1 m) and a deck 42 ft wide.

Who owns RTE I81 over RTE 12?

It is owned by the State Highway Agency.