Structure G1100704JMUNNBI · Berkshire County, MA

HWY Bridge ST over Water Housatonic River

Carries HWY Bridge ST over Water Housatonic River, E Of Main ST N Of Jct23&7.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT132 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

132 ft end to end. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a through truss.

Built195175 years old
Length131.9 ft40.2 m
Daily traffic8,200counted 2008
Last inspectedJune 2024every 24 months

Location

StateMassachusetts
CountyBerkshire
LocationE Of Main ST N Of Jct23&7
CarriesHWY Bridge ST
CrossesWater Housatonic River
Coordinates42.19253, -73.35901

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length131.9 ft (40.2 m)
Max Span128.9 ft (39.3 m)
Deck Width29.2 ft (8.9 m)
Deck Area357.8 sq m
Main Spans1
Year Built1951

Traffic

Avg Daily Traffic8,200 (2008)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberG1100704JMUNNBI

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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