US Bridges

RTE 12 over Chaumont River

Good

Jefferson County, New York · Route 12E over Chaumont R · Structure no. 000000001010120

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
484 ft
4 main spans
Daily traffic
4,296
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Chaumont River is a steel continuous stringer/multi-beam or girder carrying RTE 12 over Chaumont River in Jefferson County, New York. It was built in 2024, so it is 1 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,296 vehicles a day, roughly 7% of them trucks, projected to reach 4,322 by 2041. The structure is 484 ft (147.5 m) long and 49 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesRTE 12
CrossesChaumont River
LocationRoute 12E over Chaumont R
RouteState Highway 12
CountyJefferson County
StateNew York
Coordinates44.07002, -76.13951
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating97 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length484 ft (147.5 m)
Longest span71 ft (21.6 m)
Deck width49 ft (15 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic4,296 (2018)
Projected traffic4,322 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed12.4 mi (20 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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 12 over Chaumont River built?

It was built in 2024, making it 1 years old in 2025.

What condition is RTE 12 over Chaumont River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does RTE 12 over Chaumont River carry?

About 4,296 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is RTE 12 over Chaumont River?

The structure is 484 ft (147.5 m) long with a longest span of 71 ft (21.6 m) and a deck 49 ft wide.

Who owns RTE 12 over Chaumont River?

It is owned by the State Highway Agency.