Structure L050444GHDOTNBI · Berkshire County, MA

I 90 WB over Comb Us20 & Housatnc R

Carries I 90 WB over Comb Us20 & Housatnc R, At Mile Marker 10.3 A15.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT368 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

368 ft end to end, longest span 95 ft: about 5 semi-trucks nose to tail. 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 multi-beam bridge.

Built1957rebuilt 1991
Length367.8 ft112.1 m
Daily traffic10,023counted 2020
Last inspectedApril 2023every 24 months

Location

StateMassachusetts
CountyBerkshire
LocationAt Mile Marker 10.3 A15
CarriesI 90 WB
CrossesComb Us20 & Housatnc R
Coordinates42.29798, -73.24069

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length367.8 ft (112.1 m)
Max Span95.5 ft (29.1 m)
Deck Width44.6 ft (13.6 m)
Deck Area1524.6 sq m
Main Spans6
Year Built1957 (reconstructed 1991)

Traffic

Avg Daily Traffic10,023 (2020)
Truck Traffic22%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberL050444GHDOTNBI

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.

Nearby Bridges