Structure C050070ENMUNNBI · Franklin County, MA

HWY N River RD over Water North River

Carries HWY N River RD over Water North River, At Shelburne Tl/rte 112.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT127 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

127 ft end to end. Lengths and the semi-truck 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 arch.

Built1937rebuilt 2004
Length126.6 ft38.6 m
Daily traffic1,422counted 2024
Last inspectedOctober 2024every 24 months

Location

StateMassachusetts
CountyFranklin
LocationAt Shelburne Tl/rte 112
CarriesHWY N River RD
CrossesWater North River
Coordinates42.62761, -72.73701

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length126.6 ft (38.6 m)
Max Span122.0 ft (37.2 m)
Deck Width30.5 ft (9.3 m)
Deck Area359.0 sq m
Main Spans1
Year Built1937 (reconstructed 2004)

Traffic

Avg Daily Traffic1,422 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical9 — Foundation above flood level
Structure NumberC050070ENMUNNBI

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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