Structure M03014ALEDOT634 · Bristol County, MA

HWY School ST over Rr Amtrak/mbta

Carries HWY School ST over Rr Amtrak/mbta, Amtrak Mile Post 202.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

110 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.

Built200422 years old
Length109.9 ft33.5 m
Daily traffic10,988counted 2021
Last inspectedJanuary 2023every 24 months

Location

StateMassachusetts
CountyBristol
LocationAmtrak Mile Post 202
CarriesHWY School ST
CrossesRr Amtrak/mbta
Coordinates42.01054, -71.23566

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length109.9 ft (33.5 m)
Max Span104.3 ft (31.8 m)
Deck Width49.9 ft (15.2 m)
Deck Area509.2 sq m
Main Spans1
Year Built2004

Traffic

Avg Daily Traffic10,988 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberM03014ALEDOT634

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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