US Bridges

RTE 12 over Mill Creek

Fair

Lewis County, New York · 0.5 MI N JCT 12 + 177 · Structure no. 000000001009620

Built
1928
97 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
2,290
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 12 over Mill Creek is a steel stringer/multi-beam or girder carrying RTE 12 over Mill Creek in Lewis County, New York. It was built in 1928, so it is 97 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 2,290 vehicles a day, roughly 14% of them trucks, projected to reach 2,311 by 2041. The structure is 35 ft (10.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE 12
CrossesMill Creek
Location0.5 MI N JCT 12 + 177
RouteState Highway 12
CountyLewis County
StateNew York
Coordinates43.79699, -75.55276
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
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span32 ft (9.7 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,290 (2021)
Projected traffic2,311 by 2041
Trucks14%
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$772,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 12 over Mill Creek built?

It was built in 1928, making it 97 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 November 2024.

How much traffic does RTE 12 over Mill Creek carry?

About 2,290 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is RTE 12 over Mill Creek?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.7 m) and a deck 33 ft wide.

Who owns RTE 12 over Mill Creek?

It is owned by the State Highway Agency.