US Bridges

Darien-Alexander over Tunnery Creek

Good

Genesee County, New York · 3.3 MI SW Alexander · Structure no. 000000003315610

Built
2022
3 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
325
2021 count
Owner
County
County Highway Agency

About this bridge

Darien-Alexander over Tunnery Creek is a prestressed concrete box beam or girders - multiple carrying Darien-Alexander over Tunnery Creek in Genesee County, New York. It was built in 2022, so it is 3 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 325 vehicles a day, roughly 4% of them trucks, projected to reach 455 by 2041. The structure is 51 ft (15.6 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesDarien-Alexander
CrossesTunnery Creek
Location3.3 MI SW Alexander
RouteCounty Highway 0
Coordinates42.87297, -78.30725
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length51 ft (15.6 m)
Longest span48 ft (14.6 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic325 (2021)
Projected traffic455 by 2041
Trucks4%
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$656,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Darien-Alexander over Tunnery Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Darien-Alexander over Tunnery 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 Darien-Alexander over Tunnery Creek carry?

About 325 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Darien-Alexander over Tunnery Creek?

The structure is 51 ft (15.6 m) long with a longest span of 48 ft (14.6 m) and a deck 33 ft wide.

Who owns Darien-Alexander over Tunnery Creek?

It is owned by the County Highway Agency.