US Bridges

Main Street over Quanduck Brook

Fair

Windham County, Connecticut · 500FT North of River Road · Structure no. 04784

Built
1939
86 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
37 ft
1 main span
Daily traffic
619
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Main Street over Quanduck Brook is a concrete tee beam carrying Main Street over Quanduck Brook in Windham County, Connecticut. It was built in 1939, so it is 86 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 619 vehicles a day, roughly 5% of them trucks, projected to reach 920 by 2044. The structure is 37 ft (11.3 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMain Street
CrossesQuanduck Brook
Location500FT North of River Road
RouteCity Street 0
Coordinates41.72315, -71.83286
Functional classRural Minor Collector

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 inspectionJune 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating47 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic619 (2024)
Projected traffic920 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Main Street over Quanduck Brook built?

It was built in 1939, making it 86 years old in 2025.

What condition is Main Street over Quanduck 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 June 2024.

How much traffic does Main Street over Quanduck Brook carry?

About 619 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Main Street over Quanduck Brook?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 35 ft wide.

Who owns Main Street over Quanduck Brook?

It is owned by the Town or Township Highway Agency.