Structure P010248G4DOTNBI · Hampden County, MA

US 20 Brimfield RD over Comb St67 NB & Csx

Carries US 20 Brimfield RD over Comb St67 NB & Csx, At Jct Of ST 67 & US 20.

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
SEMI-TRUCK · 72 FT174 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

174 ft end to end, longest span 91 ft: about 2 semi-trucks nose to tail. 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.

Built200818 years old
Length173.9 ft53 m
Daily traffic13,577counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateMassachusetts
CountyHampden
LocationAt Jct Of ST 67 & US 20
CarriesUS 20 Brimfield RD
CrossesComb St67 NB & Csx
Coordinates42.14367, -72.28408

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length173.9 ft (53 m)
Max Span91.2 ft (27.8 m)
Deck Width53.5 ft (16.3 m)
Deck Area863.9 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic13,577 (2024)
Truck Traffic15%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberP010248G4DOTNBI

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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