Structure 5144 · Waldo County, ME

Troy RD over 25 Mile Stream

Carries Troy RD over 25 Mile Stream, 0.6 Mi E Of RTE 11 & 100.

Overall conditionPoor

Set by its lowest-rated component: Deck and Substructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT77 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 4/9 · sets the rating

77 ft end to end, longest span 38 ft. 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 tee-beam bridge.

Built1921105 years old
Length77.1 ft23.5 m
Daily traffic1,263counted 2016
Last inspectedAugust 2023every 24 months

Location

StateMaine
CountyWaldo
Location0.6 Mi E Of RTE 11 & 100
CarriesTroy RD
Crosses25 Mile Stream
Coordinates44.68926, -69.41795

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length77.1 ft (23.5 m)
Max Span37.7 ft (11.5 m)
Deck Width23.0 ft (7 m)
Deck Area164.5 sq m
Main Spans2
Year Built1921

Traffic

Avg Daily Traffic1,263 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number5144

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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