US Bridges

Frog Valley Road over W B Conewango Crk

Fair

Cattaraugus County, New York · 2.1 MI S of South Dayton · Structure no. 000000003322260

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
141
2021 count
Owner
County
County Highway Agency

About this bridge

Frog Valley Road over W B Conewango Crk is a steel stringer/multi-beam or girder carrying Frog Valley Road over W B Conewango Crk in Cattaraugus County, New York. It was built in 1985, so it is 40 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 141 vehicles a day, roughly 8% of them trucks, projected to reach 197 by 2041. The structure is 54 ft (16.5 m) long and 25 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesFrog Valley Road
CrossesW B Conewango Crk
Location2.1 MI S of South Dayton
Coordinates42.32594, -79.05162
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span53 ft (16.1 m)
Deck width25 ft (7.7 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic141 (2021)
Projected traffic197 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$2.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Frog Valley Road over W B Conewango Crk built?

It was built in 1985, making it 40 years old in 2025.

What condition is Frog Valley Road over W B Conewango Crk in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Frog Valley Road over W B Conewango Crk carry?

About 141 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Frog Valley Road over W B Conewango Crk?

The structure is 54 ft (16.5 m) long with a longest span of 53 ft (16.1 m) and a deck 25 ft wide.

Who owns Frog Valley Road over W B Conewango Crk?

It is owned by the County Highway Agency.