Structure W130082P4DOT634 · Norfolk County, MA

HWY Kingsbury ST over Rr Csx/mbta

Carries HWY Kingsbury ST over Rr Csx/mbta, .16 Km NW RT 16.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT76 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

76 ft end to end. 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 through truss.

Built1889rebuilt 1996
Length76.1 ft23.2 m
Daily traffic14,482counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateMassachusetts
CountyNorfolk
Location.16 Km NW RT 16
CarriesHWY Kingsbury ST
CrossesRr Csx/mbta
Coordinates42.30242, -71.28707

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length76.1 ft (23.2 m)
Max Span70.9 ft (21.6 m)
Deck Width48.6 ft (14.8 m)
Deck Area343.4 sq m
Main Spans1
Year Built1889 (reconstructed 1996)

Traffic

Avg Daily Traffic14,482 (2023)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalNot applicable
Structure NumberW130082P4DOT634

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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