US Bridges

RTE 12 over Sugar River

Fair

Lewis County, New York · 7.1 MI S JCT 12 + 12D · Structure no. 000000001094630

Built
1968
57 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
3 main spans
Daily traffic
4,883
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Sugar River is a steel continuous stringer/multi-beam or girder carrying RTE 12 over Sugar River in Lewis County, New York. It was built in 1968, so it is 57 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 4,883 vehicles a day, roughly 15% of them trucks, projected to reach 4,929 by 2041. The structure is 272 ft (82.9 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRTE 12
CrossesSugar River
Location7.1 MI S JCT 12 + 12D
RouteState Highway 12
CountyLewis County
StateNew York
Coordinates43.52542, -75.32482
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length272 ft (82.9 m)
Longest span102 ft (31 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,883 (2016)
Projected traffic4,929 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Sugar River built?

It was built in 1968, making it 57 years old in 2025.

What condition is RTE 12 over Sugar River 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 August 2023.

How much traffic does RTE 12 over Sugar River carry?

About 4,883 vehicles per day (2016 count), of which roughly 15% are trucks.

How long is RTE 12 over Sugar River?

The structure is 272 ft (82.9 m) long with a longest span of 102 ft (31 m) and a deck 33 ft wide.

Who owns RTE 12 over Sugar River?

It is owned by the State Highway Agency.