US Bridges

RTE I87 over Ausable River

Good

Essex County, New York · I87 at Clinton CO Line · Structure no. 000000001033651

Built
1995
30 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
384 ft
3 main spans
Daily traffic
5,051
2011 count
Owner
State
State Highway Agency

About this bridge

RTE I87 over Ausable River is a steel continuous stringer/multi-beam or girder carrying RTE I87 over Ausable River in Essex County, New York. It was built in 1995, so it is 30 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 5,051 vehicles a day, roughly 34% of them trucks. The structure is 384 ft (117 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE I87
CrossesAusable River
LocationI87 at Clinton CO Line
RouteInterstate 87
Coordinates44.4911, -73.49471
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating58 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length384 ft (117 m)
Longest span180 ft (54.8 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,051 (2011)
Projected traffic—
Trucks34%
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$6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I87 over Ausable River built?

It was built in 1995, making it 30 years old in 2025.

What condition is RTE I87 over Ausable River 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 August 2023.

How much traffic does RTE I87 over Ausable River carry?

About 5,051 vehicles per day (2011 count), of which roughly 34% are trucks.

How long is RTE I87 over Ausable River?

The structure is 384 ft (117 m) long with a longest span of 180 ft (54.8 m) and a deck 42 ft wide.

Who owns RTE I87 over Ausable River?

It is owned by the State Highway Agency.