US Bridges

RTE 12 over Mill Creek

Fair

Lewis County, New York · Lowville · Structure no. 000000001009600

Built
1913
112 years old
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
55 ft
1 main span
Daily traffic
11,108
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Mill Creek is a concrete arch - deck carrying RTE 12 over Mill Creek in Lewis County, New York. It was built in 1913, so it is 112 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 11,108 vehicles a day, roughly 8% of them trucks, projected to reach 11,213 by 2041. The structure is 55 ft (16.8 m) long and 60 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 12
CrossesMill Creek
LocationLowville
RouteState Highway 12
Coordinates43.78403, -75.49029
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.8 US tons
Inventory rating15 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length55 ft (16.8 m)
Longest span53 ft (16.1 m)
Deck width60 ft (18.4 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,108 (2016)
Projected traffic11,213 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Mill Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is RTE 12 over Mill Creek 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 12 over Mill Creek carry?

About 11,108 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is RTE 12 over Mill Creek?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.1 m) and a deck 60 ft wide.

Who owns RTE 12 over Mill Creek?

It is owned by the State Highway Agency.