Structure G12044155DOTNBI · Franklin County, MA

ST 2 EB Ramp over I 91 NB

Carries ST 2 EB Ramp over I 91 NB, Mm 45.8 On I-91 NB.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

175 ft end to end, longest span 82 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.

Built1965rebuilt 1992
Length174.5 ft53.2 m
Daily traffic2,974counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateMassachusetts
CountyFranklin
LocationMm 45.8 On I-91 NB
CarriesST 2 EB Ramp
CrossesI 91 NB
Coordinates42.61694, -72.59216

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length174.5 ft (53.2 m)
Max Span82.3 ft (25.1 m)
Deck Width28.2 ft (8.6 m)
Deck Area457.5 sq m
Main Spans3
Year Built1965 (reconstructed 1992)

Traffic

Avg Daily Traffic2,974 (2020)
Truck Traffic17%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure NumberG12044155DOTNBI

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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