Structure G0500230LDOTNBI · Essex County, MA

St127 Western AVE over Water Blynman Canal

Carries St127 Western AVE over Water Blynman Canal, At Anisquam River.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating3/9 · Serious
Substructuresets the rating3/9 · Serious
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT90 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 3/9 · sets the ratingSubstructure 3/9 · sets the rating

90 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 bascule bridge (drawn closed).

Built1906rebuilt 1981
Length89.9 ft27.4 m
Daily traffic4,886counted 2022
Last inspectedDecember 2024every 6 months

Location

StateMassachusetts
CountyEssex
LocationAt Anisquam River
CarriesSt127 Western AVE
CrossesWater Blynman Canal
Coordinates42.60986, -70.67334

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length89.9 ft (27.4 m)
Max Span84.0 ft (25.6 m)
Deck Width45.9 ft (14 m)
Deck Area383.6 sq m
Main Spans1
Year Built1906 (reconstructed 1981)

Traffic

Avg Daily Traffic4,886 (2022)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 6 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberG0500230LDOTNBI

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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