US Bridges

South Main Street over Canal

Fair

Windham County, Connecticut · 1000 Ft South of Route 14 · Structure no. 04756

Built
1950
75 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
2 main spans
Daily traffic
5,775
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

South Main Street over Canal is a steel stringer/multi-beam or girder carrying South Main Street over Canal in Windham County, Connecticut. It was built in 1950, so it is 75 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 5 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 5,775 vehicles a day, roughly 2% of them trucks, projected to reach 8,581 by 2044. The structure is 62 ft (18.9 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Main Street
CrossesCanal
Location1000 Ft South of Route 14
RouteCity Street 0
Coordinates41.71001, -71.88179
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,775 (2024)
Projected traffic8,581 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 South Main Street over Canal built?

It was built in 1950, making it 75 years old in 2025.

What condition is South Main Street over Canal 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 April 2024.

How much traffic does South Main Street over Canal carry?

About 5,775 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is South Main Street over Canal?

The structure is 62 ft (18.9 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns South Main Street over Canal?

It is owned by the Town or Township Highway Agency.