Structure P130234B2DOTNBI · Plymouth County, MA

HWY Summer ST over ST 3 Pilgrim HWY

Carries HWY Summer ST over ST 3 Pilgrim HWY, 1 Mi W Of RTE 3a.

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 FT109 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

109 ft end to end, longest span 49 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 rigid-frame bridge.

Built195175 years old
Length108.9 ft33.2 m
Daily traffic8,600counted 2024
Last inspectedJuly 2024every 24 months

Location

StateMassachusetts
CountyPlymouth
Location1 Mi W Of RTE 3a
CarriesHWY Summer ST
CrossesST 3 Pilgrim HWY
Coordinates41.94985, -70.67898

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length108.9 ft (33.2 m)
Max Span48.9 ft (14.9 m)
Deck Width38.1 ft (11.6 m)
Deck Area385.1 sq m
Main Spans2
Year Built1951

Traffic

Avg Daily Traffic8,600 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberP130234B2DOTNBI

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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