US Bridges

RTE I86 over Ischua Creek

Poor

Cattaraugus County, New York · .4 MI SW JCT I86 & SH 16 · Structure no. 000000001092162

Built
1972
53 years old, rebuilt 2006
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
325 ft
3 main spans
Daily traffic
6,790
2020 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 2006, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,790 vehicles a day, roughly 23% of them trucks, projected to reach 8,087 by 2041. The structure is 325 ft (99.1 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I86
CrossesIschua Creek
Location.4 MI SW JCT I86 & SH 16
RouteInterstate 86
Coordinates42.1729, -78.38978
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating95.2 US tons
Inventory rating21.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span107 ft (32.6 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,790 (2020)
Projected traffic8,087 by 2041
Trucks23%
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$9.2 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 2006.

What condition is RTE I86 over Ischua Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does RTE I86 over Ischua Creek carry?

About 6,790 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is RTE I86 over Ischua Creek?

The structure is 325 ft (99.1 m) long with a longest span of 107 ft (32.6 m) and a deck 44 ft wide.

Who owns RTE I86 over Ischua Creek?

It is owned by the State Highway Agency.