Structure 2146 · Franklin County, ME

Wilton RD over Sandy River

Carries Wilton RD over Sandy River, 0.1 W Of Jct RTE 27.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT381 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

381 ft end to end, longest span 145 ft: about 5 semi-trucks nose to tail. 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 multi-beam bridge.

Built199135 years old
Length380.6 ft116 m
Daily traffic18,204counted 2016
Last inspectedDecember 2023every 24 months

Location

StateMaine
CountyFranklin
Location0.1 W Of Jct RTE 27
CarriesWilton RD
CrossesSandy River
Coordinates44.66207, -70.15147

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length380.6 ft (116 m)
Max Span145.0 ft (44.2 m)
Deck Width61.4 ft (18.7 m)
Deck Area2169.2 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic18,204 (2016)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number2146

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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