Structure F060193QRDOTNBI · Norfolk County, MA

I 95 NB over Rr Macrr

Carries I 95 NB over Rr Macrr, Csx Mp Qbf 1.67.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

41 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 slab bridge.

Built196363 years old
Length41.3 ft12.6 m
Daily traffic51,482counted 2021
Last inspectedDecember 2022every 24 months

Location

StateMassachusetts
CountyNorfolk
LocationCsx Mp Qbf 1.67
CarriesI 95 NB
CrossesRr Macrr
Coordinates42.05279, -71.23681

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length41.3 ft (12.6 m)
Max Span39.7 ft (12.1 m)
Deck Width52.8 ft (16.1 m)
Deck Area202.9 sq m
Main Spans1
Year Built1963

Traffic

Avg Daily Traffic51,482 (2021)
Truck Traffic3%
Lanes On Bridge3

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberF060193QRDOTNBI

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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