US Bridges

RTE 93 over Twelvemile Creek

Good

Niagara County, New York · 3.7 MI E JCT Rts 93 + 18 · Structure no. 000000001034690

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
1,652
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 93 over Twelvemile Creek is a steel stringer/multi-beam or girder carrying RTE 93 over Twelvemile Creek in Niagara County, New York. It was built in 2021, so it is 4 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 1,652 vehicles a day, roughly 7% of them trucks, projected to reach 1,668 by 2041. The structure is 61 ft (18.5 m) long and 35 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesRTE 93
CrossesTwelvemile Creek
Location3.7 MI E JCT Rts 93 + 18
RouteState Highway 93
CountyNiagara County
StateNew York
Coordinates43.24524, -78.93734
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length61 ft (18.5 m)
Longest span60 ft (18.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,652 (2018)
Projected traffic1,668 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 93 over Twelvemile Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is RTE 93 over Twelvemile Creek 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 May 2023.

How much traffic does RTE 93 over Twelvemile Creek carry?

About 1,652 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is RTE 93 over Twelvemile Creek?

The structure is 61 ft (18.5 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns RTE 93 over Twelvemile Creek?

It is owned by the State Highway Agency.