US Bridges

Carlisle Road over Flat Creek

Good

Montgomery County, New York · 5.5 MI East of Ames · Structure no. 000000003309910

Built
2002
23 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
334
2017 count
Owner
County
County Highway Agency

About this bridge

Carlisle Road over Flat Creek is a prestressed concrete box beam or girders - multiple carrying Carlisle Road over Flat Creek in Montgomery County, New York. It was built in 2002, so it is 23 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 334 vehicles a day, roughly 2% of them trucks, projected to reach 468 by 2037. The structure is 50 ft (15.2 m) long and 27 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesCarlisle Road
CrossesFlat Creek
Location5.5 MI East of Ames
RouteCounty Highway 0
Coordinates42.8353, -74.49704
Functional classRural Minor Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length50 ft (15.2 m)
Longest span46 ft (14.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic334 (2017)
Projected traffic468 by 2037
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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$721,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carlisle Road over Flat Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Carlisle Road over Flat Creek 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 March 2023.

How much traffic does Carlisle Road over Flat Creek carry?

About 334 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Carlisle Road over Flat Creek?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14.1 m) and a deck 27 ft wide.

Who owns Carlisle Road over Flat Creek?

It is owned by the County Highway Agency.