Structure 2312 · Oxford County, ME

School ST over Androscoggin River

Carries School ST over Androscoggin River, 1.6 Mi Nly Jct 108.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT503 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

503 ft end to end, longest span 200 ft: about 7 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.

Built200521 years old
Length503.3 ft153.4 m
Daily traffic1,734counted 2016
Last inspectedApril 2024every 24 months

Location

StateMaine
CountyOxford
Location1.6 Mi Nly Jct 108
CarriesSchool ST
CrossesAndroscoggin River
Coordinates44.46088, -70.30424

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length503.3 ft (153.4 m)
Max Span199.8 ft (60.9 m)
Deck Width38.1 ft (11.6 m)
Deck Area1779.4 sq m
Main Spans3
Year Built2005

Traffic

Avg Daily Traffic1,734 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2312

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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