Structure L100112EYDOTNBI · Middlesex County, MA

I 95 /st128 over HWY Lincoln ST

Carries I 95 /st128 over HWY Lincoln ST, 0.5 Mi N RT 2 & RT 95.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT137 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

137 ft end to end, longest span 52 ft. 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 slab bridge.

Built1950rebuilt 1961
Length137.1 ft41.8 m
Daily traffic196,500counted 2016
Last inspectedOctober 2023every 24 months

Location

StateMassachusetts
CountyMiddlesex
Location0.5 Mi N RT 2 & RT 95
CarriesI 95 /st128
CrossesHWY Lincoln ST
Coordinates42.43563, -71.25956

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length137.1 ft (41.8 m)
Max Span51.8 ft (15.8 m)
Deck Width141.1 ft (43 m)
Deck Area1797.4 sq m
Main Spans3
Year Built1950 (reconstructed 1961)

Traffic

Avg Daily Traffic196,500 (2016)
Truck Traffic9%
Lanes On Bridge8
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberL100112EYDOTNBI

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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