US Bridges

RTE I86 over Ischua Creek

Good

Cattaraugus County, New York · 0.4 MI SW JCT Rts 17 + 16 · Structure no. 000000001092161

Built
1972
53 years old, rebuilt 2007
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
356 ft
3 main spans
Daily traffic
5,279
2014 count
Owner
State
State Highway Agency

About this bridge

RTE I86 over Ischua Creek is a steel stringer/multi-beam or girder carrying RTE I86 over Ischua Creek in Cattaraugus County, New York. It was built in 1972 and reconstructed in 2007, 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 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 5,279 vehicles a day, roughly 19% of them trucks. The structure is 356 ft (108.5 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I86
CrossesIschua Creek
Location0.4 MI SW JCT Rts 17 + 16
RouteInterstate 86
Coordinates42.17346, -78.38962
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length356 ft (108.5 m)
Longest span115 ft (35 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,279 (2014)
Projected traffic—
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$10 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I86 over Ischua Creek built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2007.

What condition is RTE I86 over Ischua 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 June 2023.

How much traffic does RTE I86 over Ischua Creek carry?

About 5,279 vehicles per day (2014 count), of which roughly 19% are trucks.

How long is RTE I86 over Ischua Creek?

The structure is 356 ft (108.5 m) long with a longest span of 115 ft (35 m) and a deck 44 ft wide.

Who owns RTE I86 over Ischua Creek?

It is owned by the State Highway Agency.