US Bridges

US 7 S Main ST over Water Housatonic River

Fair

Berkshire County, Massachusetts · 1.9 MI N of Conn Sl · Structure no. S1003409QDOTNBI

Built
1959
66 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
253 ft
3 main spans
Daily traffic
5,559
2023 count
Owner
State
State Highway Agency

About this bridge

US 7 S Main ST over Water Housatonic River is a steel stringer/multi-beam or girder carrying US 7 S Main ST over Water Housatonic River in Berkshire County, Massachusetts. It was built in 1959, so it is 66 years old, older than the Massachusetts average of 63.8 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 5,559 vehicles a day, roughly 19% of them trucks, projected to reach 9,476 by 2031. The structure is 253 ft (77.1 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 7 S Main ST
CrossesWater Housatonic River
Location1.9 MI N of Conn Sl
RouteU.S. Route 7
Coordinates42.07466, -73.33335
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.1 US tons
Inventory rating34.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length253 ft (77.1 m)
Longest span122 ft (37.2 m)
Deck width51 ft (15.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,559 (2023)
Projected traffic9,476 by 2031
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$11.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 7 S Main ST over Water Housatonic River built?

It was built in 1959, making it 66 years old in 2025.

What condition is US 7 S Main ST over Water Housatonic 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 May 2024.

How much traffic does US 7 S Main ST over Water Housatonic River carry?

About 5,559 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is US 7 S Main ST over Water Housatonic River?

The structure is 253 ft (77.1 m) long with a longest span of 122 ft (37.2 m) and a deck 51 ft wide.

Who owns US 7 S Main ST over Water Housatonic River?

It is owned by the State Highway Agency.