Structure W410140EDDOTNBI · Berkshire County, MA

HWY Old RTE 9 over Water Alder Meadow Brook

Carries HWY Old RTE 9 over Water Alder Meadow Brook, Intsect Of Wrthingtn RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 slab bridge.

Built1922rebuilt 1939
Length23.0 ft7 m
Daily traffic259counted 2018
Last inspectedOctober 2024every 24 months

Location

StateMassachusetts
CountyBerkshire
LocationIntsect Of Wrthingtn RD
CarriesHWY Old RTE 9
CrossesWater Alder Meadow Brook
Coordinates42.47806, -72.98594

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length23.0 ft (7 m)
Max Span20.0 ft (6.1 m)
Deck Width62.0 ft (18.9 m)
Deck Area132.3 sq m
Main Spans1
Year Built1922 (reconstructed 1939)

Traffic

Avg Daily Traffic259 (2018)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberW410140EDDOTNBI

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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