US Bridges

Main Street over W B Conewango Crk

Good

Cattaraugus County, New York · In South Dayton · Structure no. 000000003321000

Built
1994
31 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
769
2021 count
Owner
County
County Highway Agency

About this bridge

Main Street over W B Conewango Crk is a prestressed concrete box beam or girders - multiple carrying Main Street over W B Conewango Crk in Cattaraugus County, New York. It was built in 1994, so it is 31 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 769 vehicles a day, roughly 3% of them trucks, projected to reach 1,077 by 2041. The structure is 70 ft (21.3 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesMain Street
CrossesW B Conewango Crk
LocationIn South Dayton
RouteCounty Highway 0
Coordinates42.36097, -79.0601
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span67 ft (20.4 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic769 (2021)
Projected traffic1,077 by 2041
Trucks3%
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 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over W B Conewango Crk built?

It was built in 1994, making it 31 years old in 2025.

What condition is Main Street over W B Conewango Crk 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 2024.

How much traffic does Main Street over W B Conewango Crk carry?

About 769 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Main Street over W B Conewango Crk?

The structure is 70 ft (21.3 m) long with a longest span of 67 ft (20.4 m) and a deck 29 ft wide.

Who owns Main Street over W B Conewango Crk?

It is owned by the County Highway Agency.