Structure 6370 · Sagadahoc County, ME

Bypass DR over Route 24 Middlesex RD

Carries Bypass DR over Route 24 Middlesex RD, 1.4 Mi E Jct RTE US 201.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT88 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

88 ft end to end. 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 multi-beam bridge.

Built199729 years old
Length87.9 ft26.8 m
Daily traffic22,360counted 2016
Last inspectedDecember 2023every 24 months

Location

StateMaine
CountySagadahoc
Location1.4 Mi E Jct RTE US 201
CarriesBypass DR
CrossesRoute 24 Middlesex RD
Coordinates43.92597, -69.95154

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length87.9 ft (26.8 m)
Max Span75.1 ft (22.9 m)
Deck Width66.6 ft (20.3 m)
Deck Area544.0 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic22,360 (2016)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number6370

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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