US Bridges

Laurel Hill Road over Blackwell Brook

Fair

Windham County, Connecticut · 1 MI North of US Route 6 · Structure no. 05750

Built
1987
38 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
539
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Laurel Hill Road over Blackwell Brook is a concrete culvert carrying Laurel Hill Road over Blackwell Brook in Windham County, Connecticut. It was built in 1987, so it is 38 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 539 vehicles a day, roughly 7% of them trucks, projected to reach 801 by 2043. The structure is 26 ft (7.9 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLaurel Hill Road
CrossesBlackwell Brook
Location1 MI North of US Route 6
RouteCity Street 0
CountyWindham County
StateConnecticut
Coordinates41.79398, -71.97788
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic539 (2023)
Projected traffic801 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Laurel Hill Road over Blackwell Brook built?

It was built in 1987, making it 38 years old in 2025.

What condition is Laurel Hill Road over Blackwell 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 February 2025.

How much traffic does Laurel Hill Road over Blackwell Brook carry?

About 539 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Laurel Hill Road over Blackwell Brook?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 35 ft wide.

Who owns Laurel Hill Road over Blackwell Brook?

It is owned by the Town or Township Highway Agency.