US Bridges

Alderbottom Road over Conewango Creek

Good

Cattaraugus County, New York · 1.2 MI S of East Leon · Structure no. 000000003322230

Built
1979
46 years old, rebuilt 1992
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
51
2021 count
Owner
County
County Highway Agency

About this bridge

Alderbottom Road over Conewango Creek is a steel stringer/multi-beam or girder carrying Alderbottom Road over Conewango Creek in Cattaraugus County, New York. It was built in 1979 and reconstructed in 1992, so it is 46 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 51 vehicles a day, roughly 5% of them trucks, projected to reach 71 by 2041. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesAlderbottom Road
CrossesConewango Creek
Location1.2 MI S of East Leon
Coordinates42.32996, -78.96224
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating42 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2021)
Projected traffic71 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Alderbottom Road over Conewango Creek built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 1992.

What condition is Alderbottom 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 August 2024.

How much traffic does Alderbottom Road over Conewango Creek carry?

About 51 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Alderbottom Road over Conewango Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.8 m) and a deck 28 ft wide.

Who owns Alderbottom Road over Conewango Creek?

It is owned by the County Highway Agency.