Structure C210010JGDOTNBI · Hampshire County, MA

ST 9 /st112 over Water Swift River

Carries ST 9 /st112 over Water Swift River, .1 M E Jct Swift Riv Rd..

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

53 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 deck arch.

Built1913rebuilt 1950
Length53.1 ft16.2 m
Daily traffic2,071counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateMassachusetts
CountyHampshire
Location.1 M E Jct Swift Riv Rd.
CarriesST 9 /st112
CrossesWater Swift River
Coordinates42.44716, -72.85765

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length53.1 ft (16.2 m)
Max Span46.9 ft (14.3 m)
Deck Width46.9 ft (14.3 m)
Deck Area231.7 sq m
Main Spans1
Year Built1913 (reconstructed 1950)

Traffic

Avg Daily Traffic2,071 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure NumberC210010JGDOTNBI

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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