Structure H21001AA5DOTNBI · Hampden County, MA

St116 Bridge ST over Comb Conn River & Pvrr

Carries St116 Bridge ST over Comb Conn River & Pvrr, South Hadley Falls.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,629 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,629 ft end to end, longest span 176 ft: about 4.5 football fields. 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 multi-beam bridge.

Built199036 years old
Length1629.3 ft496.6 m
Daily traffic9,823counted 2023
Last inspectedJune 2024every 24 months

Location

StateMassachusetts
CountyHampden
LocationSouth Hadley Falls
CarriesSt116 Bridge ST
CrossesComb Conn River & Pvrr
Coordinates42.21174, -72.59612

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1629.3 ft (496.6 m)
Max Span175.9 ft (53.6 m)
Deck Width60.7 ft (18.5 m)
Deck Area9187.1 sq m
Main Spans10
Year Built1990

Traffic

Avg Daily Traffic9,823 (2023)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberH21001AA5DOTNBI

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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