Structure W030223KBMUNNBI · Norfolk County, MA

HWY Washngton ST over Water Neponset River

Carries HWY Washngton ST over Water Neponset River, .4 Mi S Of Norwood.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT36 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9Substructure 5/9

36 ft end to end, longest span 16 ft. Lengths and the car 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 deck arch.

Built1875rebuilt 1926
Length36.1 ft11 m
Daily traffic16,785counted 2021
Last inspectedApril 2024every 24 months

Location

StateMassachusetts
CountyNorfolk
Location.4 Mi S Of Norwood
CarriesHWY Washngton ST
CrossesWater Neponset River
Coordinates42.16264, -71.21535

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length36.1 ft (11 m)
Max Span16.1 ft (4.9 m)
Deck Width46.3 ft (14.1 m)
Deck Area155.1 sq m
Main Spans2
Year Built1875 (reconstructed 1926)

Traffic

Avg Daily Traffic16,785 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure NumberW030223KBMUNNBI

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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