US Bridges

Alder Brook Road over Trout Brook

Good

Warren County, New York · 6.5 MI NE of North Creek · Structure no. 000000003305220

Built
2010
15 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
24
2019 count
Owner
County
County Highway Agency

About this bridge

Alder Brook Road over Trout Brook is a prestressed concrete box beam or girders - multiple carrying Alder Brook Road over Trout Brook in Warren County, New York. It was built in 2010, so it is 15 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 24 vehicles a day, roughly 10% of them trucks, projected to reach 34 by 2039. The structure is 101 ft (30.8 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAlder Brook Road
CrossesTrout Brook
Location6.5 MI NE of North Creek
Coordinates43.75515, -73.88066
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating71 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span97 ft (29.6 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2019)
Projected traffic34 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Alder Brook Road over Trout Brook built?

It was built in 2010, making it 15 years old in 2025.

What condition is Alder Brook Road over 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 June 2024.

How much traffic does Alder Brook Road over Trout Brook carry?

About 24 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Alder Brook Road over Trout Brook?

The structure is 101 ft (30.8 m) long with a longest span of 97 ft (29.6 m) and a deck 19 ft wide.

Who owns Alder Brook Road over Trout Brook?

It is owned by the County Highway Agency.