US Bridges

US Route 6 over Quinebaug River

Fair

Windham County, Connecticut · .1 Mile West of Route 12 · Structure no. 00495

Built
1957
68 years old, rebuilt 1994
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
2 main spans
Daily traffic
18,300
2022 count
Owner
State
State Highway Agency

About this bridge

US Route 6 over Quinebaug River is a steel continuous stringer/multi-beam or girder carrying US Route 6 over Quinebaug River in Windham County, Connecticut. It was built in 1957 and reconstructed in 1994, so it is 68 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 18,300 vehicles a day, roughly 6% of them trucks, projected to reach 27,192 by 2042. The structure is 194 ft (59 m) long and 106 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS Route 6
CrossesQuinebaug River
Location.1 Mile West of Route 12
RouteU.S. Route 6
Coordinates41.80201, -71.88816
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length194 ft (59 m)
Longest span90 ft (27.4 m)
Deck width106 ft (32.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,300 (2022)
Projected traffic27,192 by 2042
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US Route 6 over Quinebaug River built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1994.

What condition is US Route 6 over Quinebaug River 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 2024.

How much traffic does US Route 6 over Quinebaug River carry?

About 18,300 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US Route 6 over Quinebaug River?

The structure is 194 ft (59 m) long with a longest span of 90 ft (27.4 m) and a deck 106 ft wide.

Who owns US Route 6 over Quinebaug River?

It is owned by the State Highway Agency.