Structure L140010YVDOTNBI · Hampden County, MA

I 91 NB over HWY Emerson RD

Carries I 91 NB over HWY Emerson RD, Mm 2.1 On I-91.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT48 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

48 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 multi-beam bridge.

Built1959rebuilt 1985
Length47.9 ft14.6 m
Daily traffic45,776counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateMassachusetts
CountyHampden
LocationMm 2.1 On I-91
CarriesI 91 NB
CrossesHWY Emerson RD
Coordinates42.05775, -72.58905

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length47.9 ft (14.6 m)
Max Span44.6 ft (13.6 m)
Deck Width57.4 ft (17.5 m)
Deck Area255.5 sq m
Main Spans1
Year Built1959 (reconstructed 1985)

Traffic

Avg Daily Traffic45,776 (2020)
Truck Traffic13%
Lanes On Bridge3
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 NumberL140010YVDOTNBI

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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