US Bridges

RTE I86 over South Nine Mile Road

Fair

Cattaraugus County, New York · 1 MI East of So Vandalia · Structure no. 000000001073472

Built
1988
37 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
118 ft
1 main span
Daily traffic
5,987
2019 count
Owner
State
State Highway Agency

About this bridge

RTE I86 over South Nine Mile Road is a steel stringer/multi-beam or girder carrying RTE I86 over South Nine Mile Road in Cattaraugus County, New York. It was built in 1988, so it is 37 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 5,987 vehicles a day, roughly 16% of them trucks, projected to reach 7,130 by 2041. The structure is 118 ft (36 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE I86
CrossesSouth Nine Mile Road
Location1 MI East of So Vandalia
RouteInterstate 86
CountyCattaraugus County
StateNew York
Coordinates42.08764, -78.57665
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length118 ft (36 m)
Longest span112 ft (34.1 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,987 (2019)
Projected traffic7,130 by 2041
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$3.9 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I86 over South Nine Mile Road built?

It was built in 1988, making it 37 years old in 2025.

What condition is RTE I86 over South Nine Mile Road 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 South Nine Mile Road carry?

About 5,987 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is RTE I86 over South Nine Mile Road?

The structure is 118 ft (36 m) long with a longest span of 112 ft (34.1 m) and a deck 42 ft wide.

Who owns RTE I86 over South Nine Mile Road?

It is owned by the State Highway Agency.