US Bridges

Willow Road over E B Twelvemile Ck

FairPosted for load

Niagara County, New York · .1 MI SE of South Wilson · Structure no. 000000003329700

Built
1950
75 years old, rebuilt 1991
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 ft
2 main spans
Daily traffic
110
2021 count
Owner
County
County Highway Agency

About this bridge

Willow Road over E B Twelvemile Ck is a wood or timber stringer/multi-beam or girder carrying Willow Road over E B Twelvemile Ck in Niagara County, New York. It was built in 1950 and reconstructed in 1991, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 110 vehicles a day, roughly 11% of them trucks, projected to reach 154 by 2041. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWillow Road
CrossesE B Twelvemile Ck
Location.1 MI SE of South Wilson
Coordinates43.23143, -78.81174
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating27 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length46 ft (14 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2021)
Projected traffic154 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow Road over E B Twelvemile Ck built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1991.

What condition is Willow Road over E B Twelvemile Ck 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 May 2024.

How much traffic does Willow Road over E B Twelvemile Ck carry?

About 110 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Willow Road over E B Twelvemile Ck?

The structure is 46 ft (14 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns Willow Road over E B Twelvemile Ck?

It is owned by the County Highway Agency.