US Bridges

RTE I86 over Lit.Conewango Crk

Fair

Cattaraugus County, New York · 1.4 MI NW JCT 17 + Int 17 · Structure no. 000000001062810

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
32 ft
2 main spans
Daily traffic
7,299
2021 count
Owner
State
State Highway Agency

About this bridge

RTE I86 over Lit.Conewango Crk is a steel culvert carrying RTE I86 over Lit.Conewango Crk in Cattaraugus County, New York. It was built in 1972, so it is 53 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 7,299 vehicles a day, roughly 22% of them trucks, projected to reach 8,693 by 2041. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRTE I86
CrossesLit.Conewango Crk
Location1.4 MI NW JCT 17 + Int 17
RouteInterstate 86
CountyCattaraugus County
StateNew York
Coordinates42.11144, -78.92182
Functional classRural Principal Arterial - Interstate

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length32 ft (9.8 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,299 (2021)
Projected traffic8,693 by 2041
Trucks22%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I86 over Lit.Conewango Crk built?

It was built in 1972, making it 53 years old in 2025.

What condition is RTE I86 over Lit.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 RTE I86 over Lit.Conewango Crk carry?

About 7,299 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is RTE I86 over Lit.Conewango Crk?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.2 m).

Who owns RTE I86 over Lit.Conewango Crk?

It is owned by the State Highway Agency.