Structure T010503NKDOTNBI · Bristol County, MA

St140 NB over ST 79 Myricks ST

Carries St140 NB over ST 79 Myricks ST, 3.2 Mi So Of RT 24.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

64 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 multi-beam bridge.

Built195967 years old
Length64.0 ft19.5 m
Daily traffic12,252counted 2022
Last inspectedOctober 2023every 24 months

Location

StateMassachusetts
CountyBristol
Location3.2 Mi So Of RT 24
CarriesSt140 NB
CrossesST 79 Myricks ST
Coordinates41.84096, -71.00880

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length64.0 ft (19.5 m)
Max Span58.1 ft (17.7 m)
Deck Width50.9 ft (15.5 m)
Deck Area302.2 sq m
Main Spans1
Year Built1959

Traffic

Avg Daily Traffic12,252 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure NumberT010503NKDOTNBI

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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