US Bridges

RTE I87 over RTE 9 Trout Brook

Good

Warren County, New York · JCT RTE 9 & I87 · Structure no. 000000001005782

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
534 ft
5 main spans
Daily traffic
4,958
2021 count
Owner
State
State Highway Agency

About this bridge

RTE I87 over RTE 9 Trout Brook is a steel continuous stringer/multi-beam or girder carrying RTE I87 over RTE 9 Trout Brook in Warren County, New York. It was built in 2013, so it is 12 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 4,958 vehicles a day, roughly 31% of them trucks, projected to reach 5,905 by 2041. The structure is 534 ft (162.8 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I87
CrossesRTE 9 Trout Brook
LocationJCT RTE 9 & I87
RouteInterstate 87
CountyWarren County
StateNew York
Coordinates43.72753, -73.82392
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating74 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length534 ft (162.8 m)
Longest span141 ft (43 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,958 (2021)
Projected traffic5,905 by 2041
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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$8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I87 over RTE 9 Trout Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is RTE I87 over RTE 9 Trout 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 I87 over RTE 9 Trout Brook carry?

About 4,958 vehicles per day (2021 count), of which roughly 31% are trucks.

How long is RTE I87 over RTE 9 Trout Brook?

The structure is 534 ft (162.8 m) long with a longest span of 141 ft (43 m) and a deck 41 ft wide.

Who owns RTE I87 over RTE 9 Trout Brook?

It is owned by the State Highway Agency.