US Bridges

Lower Barrack Road over Flat Brook

Fair

Litchfield County, Connecticut · West of Music Mtn Road · Structure no. 05194

Built
1956
69 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
31
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lower Barrack Road over Flat Brook is a concrete slab carrying Lower Barrack Road over Flat Brook in Litchfield County, Connecticut. It was built in 1956, so it is 69 years old, older than the Connecticut average of 56.7 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 31 vehicles a day, roughly 7% of them trucks, projected to reach 46 by 2041. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLower Barrack Road
CrossesFlat Brook
LocationWest of Music Mtn Road
RouteCity Street 0
Coordinates41.93941, -73.32106
Functional classRural Local

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.
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 evaluation6: Equal to 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 rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2021)
Projected traffic46 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Barrack Road over Flat Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is Lower Barrack Road over Flat Brook 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 March 2023.

How much traffic does Lower Barrack Road over Flat Brook carry?

About 31 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Lower Barrack Road over Flat Brook?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Lower Barrack Road over Flat Brook?

It is owned by the Town or Township Highway Agency.