Structure F0701829JDOT634 · Middlesex County, MA

HWY Mt Wayte AVE over Rr Csx

Carries HWY Mt Wayte AVE over Rr Csx, .7 Mi. N. Of St-135.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT118 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 7/9

118 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.

Built194779 years old
Length118.4 ft36.1 m
Daily traffic10,000counted 2014
Last inspectedJuly 2024every 24 months

Location

StateMassachusetts
CountyMiddlesex
Location.7 Mi. N. Of St-135
CarriesHWY Mt Wayte AVE
CrossesRr Csx
Coordinates42.28888, -71.43129

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length118.4 ft (36.1 m)
Max Span32.2 ft (9.8 m)
Deck Width51.8 ft (15.8 m)
Deck Area570.4 sq m
Main Spans1
Year Built1947

Traffic

Avg Daily Traffic10,000 (2014)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberF0701829JDOT634

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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