US Bridges

RTE I86 over Bay State Brook

Good

Cattaraugus County, New York · 1.6 MI SW JCT 17 + Int 19 · Structure no. 000000006062840

Built
1967
58 years old
Condition
Good
inspected October 2024
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
9,570
2020 count
Owner
State
State Highway Agency

About this bridge

RTE I86 over Bay State Brook is a steel culvert carrying RTE I86 over Bay State Brook in Cattaraugus County, New York. It was built in 1967, so it is 58 years old, older 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 9,570 vehicles a day, roughly 28% of them trucks, projected to reach 11,397 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 10.6 mi (17 km).

CarriesRTE I86
CrossesBay State Brook
Location1.6 MI SW JCT 17 + Int 19
RouteInterstate 86
Coordinates42.10065, -78.80723
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,570 (2020)
Projected traffic11,397 by 2041
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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$903,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I86 over Bay State Brook built?

It was built in 1967, making it 58 years old in 2025.

What condition is RTE I86 over Bay State Brook 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 October 2024.

How much traffic does RTE I86 over Bay State Brook carry?

About 9,570 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is RTE I86 over Bay State Brook?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns RTE I86 over Bay State Brook?

It is owned by the State Highway Agency.