Structure S270062L2DOTNBI · Middlesex County, MA

ST 28 Fellsway W over I 93

Carries ST 28 Fellsway W over I 93, RT 28 At RT 93.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT403 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 3/9 · sets the ratingSubstructure 5/9

403 ft end to end, longest span 141 ft: about 6 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.

Built1959rebuilt 1976
Length402.9 ft122.8 m
Daily traffic9,181counted 2025
Last inspectedJanuary 2025every 6 months

Location

StateMassachusetts
CountyMiddlesex
LocationRT 28 At RT 93
CarriesST 28 Fellsway W
CrossesI 93
Coordinates42.45931, -71.10210

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length402.9 ft (122.8 m)
Max Span141.1 ft (43 m)
Deck Width51.8 ft (15.8 m)
Deck Area1940.2 sq m
Main Spans4
Year Built1959 (reconstructed 1976)

Traffic

Avg Daily Traffic9,181 (2025)
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 6 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure NumberS270062L2DOTNBI

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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