Structure 2924 · Somerset County, ME

Canaan RD over Wesserunsett Stream

Carries Canaan RD over Wesserunsett Stream, 2.4 Mi E Jct RTE 150.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT234 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

234 ft end to end, longest span 90 ft: about 3 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.

Built194284 years old
Length233.9 ft71.3 m
Daily traffic5,922counted 2016
Last inspectedSeptember 2023every 24 months

Location

StateMaine
CountySomerset
Location2.4 Mi E Jct RTE 150
CarriesCanaan RD
CrossesWesserunsett Stream
Coordinates44.77106, -69.67784

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length233.9 ft (71.3 m)
Max Span89.9 ft (27.4 m)
Deck Width33.1 ft (10.1 m)
Deck Area720.1 sq m
Main Spans3
Year Built1942

Traffic

Avg Daily Traffic5,922 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2924

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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