Structure 2854 · Kennebec County, ME

Spring ST over Kennebec River

Carries Spring ST over Kennebec River, US 201 Over Kenn Riv.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT574 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

574 ft end to end, longest span 145 ft: about 1.6 football fields. 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.

Built1936rebuilt 1990
Length574.1 ft175 m
Daily traffic8,829counted 2016
Last inspectedNovember 2023every 24 months

Location

StateMaine
CountyKennebec
LocationUS 201 Over Kenn Riv
CarriesSpring ST
CrossesKennebec River
Coordinates44.54739, -69.62711

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length574.1 ft (175 m)
Max Span145.0 ft (44.2 m)
Deck Width86.0 ft (26.2 m)
Deck Area4,585 sq m
Main Spans5
Year Built1936 (reconstructed 1990)

Traffic

Avg Daily Traffic8,829 (2016)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2854

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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