US Bridges

RTE 12 over Mill Creek Tributary

Good

Lewis County, New York · 2.5 MI W JCT RTE 12+26 · Structure no. 000000001069590

Built
1985
40 years old
Condition
Good
inspected July 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
26 ft
1 main span
Daily traffic
3,798
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Mill Creek Tributary is a aluminum, wrought iron, or cast iron culvert carrying RTE 12 over Mill Creek Tributary in Lewis County, New York. It was built in 1985, so it is 40 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,798 vehicles a day, roughly 15% of them trucks, projected to reach 3,834 by 2041. The structure is 26 ft (7.9 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE 12
CrossesMill Creek Tributary
Location2.5 MI W JCT RTE 12+26
RouteState Highway 12
Coordinates43.79261, -75.5398
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,798 (2016)
Projected traffic3,834 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$386,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Mill Creek Tributary built?

It was built in 1985, making it 40 years old in 2025.

What condition is RTE 12 over Mill Creek Tributary 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 July 2024.

How much traffic does RTE 12 over Mill Creek Tributary carry?

About 3,798 vehicles per day (2016 count), of which roughly 15% are trucks.

How long is RTE 12 over Mill Creek Tributary?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 42 ft wide.

Who owns RTE 12 over Mill Creek Tributary?

It is owned by the State Highway Agency.