Structure L080051KDDOTNBI · Worcester County, MA

ST 12 Central ST over Water Monoosnoc Brook

Carries ST 12 Central ST over Water Monoosnoc Brook, At Corner Of Manning AVE.

Overall conditionFair

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

How ratings work
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 5/9 · sets the rating

26 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 deck arch.

Built1900rebuilt 1927
Length25.9 ft7.9 m
Daily traffic20,557counted 2019
Last inspectedDecember 2023every 24 months

Location

StateMassachusetts
CountyWorcester
LocationAt Corner Of Manning AVE
CarriesST 12 Central ST
CrossesWater Monoosnoc Brook
Coordinates42.52509, -71.75947

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length25.9 ft (7.9 m)
Max Span22.0 ft (6.7 m)
Deck Width58.1 ft (17.7 m)
Deck Area139.8 sq m
Main Spans1
Year Built1900 (reconstructed 1927)

Traffic

Avg Daily Traffic20,557 (2019)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure NumberL080051KDDOTNBI

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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