US Bridges

Swimming Hole RD over Leadmine Brook

Fair

Litchfield County, Connecticut · 1.25 Mile South of RTE 4 · Structure no. 05932

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
85
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Swimming Hole RD over Leadmine Brook is a prestressed concrete slab carrying Swimming Hole RD over Leadmine Brook in Litchfield County, Connecticut. It was built in 1989, so it is 36 years old, younger 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 85 vehicles a day, roughly 7% of them trucks, projected to reach 126 by 2044. The structure is 34 ft (10.4 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSwimming Hole RD
CrossesLeadmine Brook
Location1.25 Mile South of RTE 4
RouteCity Street 0
CountyLitchfield County
StateConnecticut
Coordinates41.75394, -73.06272
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating74 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2024)
Projected traffic126 by 2044
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Swimming Hole RD over Leadmine Brook built?

It was built in 1989, making it 36 years old in 2025.

What condition is Swimming Hole RD over Leadmine 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 October 2024.

How much traffic does Swimming Hole RD over Leadmine Brook carry?

About 85 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Swimming Hole RD over Leadmine Brook?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 17 ft wide.

Who owns Swimming Hole RD over Leadmine Brook?

It is owned by the Town or Township Highway Agency.