US Bridges

Leon Road over Conewango Creek

Fair

Cattaraugus County, New York · .2 MI W of CR 6 & CR 10 · Structure no. 000000003370330

Built
2006
19 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
77
2021 count
Owner
County
County Highway Agency

About this bridge

Leon Road over Conewango Creek is a concrete culvert carrying Leon Road over Conewango Creek in Cattaraugus County, New York. It was built in 2006, so it is 19 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 6 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 77 vehicles a day, roughly 10% of them trucks, projected to reach 108 by 2041. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLeon Road
CrossesConewango Creek
Location.2 MI W of CR 6 & CR 10
RouteCounty Highway 0
CountyCattaraugus County
StateNew York
Coordinates42.27588, -78.90208
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length34 ft (10.4 m)
Longest span31 ft (9.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2021)
Projected traffic108 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$382,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Leon Road over Conewango Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Leon Road over Conewango Creek 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 March 2023.

How much traffic does Leon Road over Conewango Creek carry?

About 77 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Leon Road over Conewango Creek?

The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m).

Who owns Leon Road over Conewango Creek?

It is owned by the County Highway Agency.