US Bridges

ST 9 Berkshire TR over Water Windsor Brook

Fair

Berkshire County, Massachusetts · 200 E of North Street · Structure no. W410160B8DOTNBI

Built
1951
74 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
30 ft
1 main span
Daily traffic
4,874
2018 count
Owner
State
State Highway Agency

About this bridge

ST 9 Berkshire TR over Water Windsor Brook is a concrete tee beam carrying ST 9 Berkshire TR over Water Windsor Brook in Berkshire County, Massachusetts. It was built in 1951, so it is 74 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 4,874 vehicles a day, roughly 10% of them trucks, projected to reach 8,607 by 2031. The structure is 30 ft (9.1 m) long and 44 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesST 9 Berkshire TR
CrossesWater Windsor Brook
Location200 E of North Street
RouteState Highway 9
CountyBerkshire County
StateMassachusetts
Coordinates42.51124, -73.07423
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.7 US tons
Inventory rating37.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,874 (2018)
Projected traffic8,607 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 9 Berkshire TR over Water Windsor Brook built?

It was built in 1951, making it 74 years old in 2025.

What condition is ST 9 Berkshire TR over Water Windsor 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 October 2024.

How much traffic does ST 9 Berkshire TR over Water Windsor Brook carry?

About 4,874 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is ST 9 Berkshire TR over Water Windsor Brook?

The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns ST 9 Berkshire TR over Water Windsor Brook?

It is owned by the State Highway Agency.