US Bridges

Dredge Road over Conewango Creek

Good

Cattaraugus County, New York · 1.3 MI S of South Dayton · Structure no. 000000003322290

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
411
2021 count
Owner
County
County Highway Agency

About this bridge

Dredge Road over Conewango Creek is a prestressed concrete box beam or girders - multiple carrying Dredge Road over Conewango Creek in Cattaraugus County, New York. It was built in 2023, so it is 2 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 411 vehicles a day, roughly 4% of them trucks, projected to reach 575 by 2041. The structure is 78 ft (23.7 m) long and 33 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesDredge Road
CrossesConewango Creek
Location1.3 MI S of South Dayton
Coordinates42.33703, -79.04089
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating110.1 US tons
Inventory rating63.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length78 ft (23.7 m)
Longest span75 ft (22.9 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic411 (2021)
Projected traffic575 by 2041
Trucks4%
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

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$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dredge Road over Conewango Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Dredge Road over Conewango 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 2023.

How much traffic does Dredge Road over Conewango Creek carry?

About 411 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Dredge Road over Conewango Creek?

The structure is 78 ft (23.7 m) long with a longest span of 75 ft (22.9 m) and a deck 33 ft wide.

Who owns Dredge Road over Conewango Creek?

It is owned by the County Highway Agency.