US Bridges

Trevett Road over Eighteen Mile Creek

Good

Erie County, New York · .8 Mile SE of Boston · Structure no. 000000003328560

Built
2020
5 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
666
2021 count
Owner
County
County Highway Agency

About this bridge

Trevett Road over Eighteen Mile Creek is a steel stringer/multi-beam or girder carrying Trevett Road over Eighteen Mile Creek in Erie County, New York. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 666 vehicles a day, roughly 7% of them trucks, projected to reach 932 by 2041. The structure is 83 ft (25.3 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesTrevett Road
CrossesEighteen Mile Creek
Location.8 Mile SE of Boston
RouteCounty Highway 0
Coordinates42.6189, -78.73028
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating101 US tons
Inventory rating61 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span79 ft (24.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic666 (2021)
Projected traffic932 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$2.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Trevett Road over Eighteen Mile Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Trevett Road over Eighteen Mile 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 November 2024.

How much traffic does Trevett Road over Eighteen Mile Creek carry?

About 666 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Trevett Road over Eighteen Mile Creek?

The structure is 83 ft (25.3 m) long with a longest span of 79 ft (24.1 m) and a deck 35 ft wide.

Who owns Trevett Road over Eighteen Mile Creek?

It is owned by the County Highway Agency.