US Bridges

RTE 12D over RTE 12

Fair

Lewis County, New York · JCT Rts 12 + 12D · Structure no. 000000001009570

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
217 ft
3 main spans
Daily traffic
1,180
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 12D over RTE 12 is a steel stringer/multi-beam or girder carrying RTE 12D over RTE 12 in Lewis 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 5 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 1,180 vehicles a day, roughly 11% of them trucks, projected to reach 1,230 by 2041. The structure is 217 ft (66 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRTE 12D
CrossesRTE 12
LocationJCT Rts 12 + 12D
RouteState Highway 12D
CountyLewis County
StateNew York
Coordinates43.61748, -75.37023
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length217 ft (66 m)
Longest span73 ft (22.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,180 (2021)
Projected traffic1,230 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$2.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 12D over RTE 12 built?

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

What condition is RTE 12D 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 2024.

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

About 1,180 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is RTE 12D over RTE 12?

The structure is 217 ft (66 m) long with a longest span of 73 ft (22.3 m) and a deck 33 ft wide.

Who owns RTE 12D over RTE 12?

It is owned by the State Highway Agency.