Structure 6324 · Hancock County, ME

Main RD over M C Rr

Carries Main RD over M C Rr, 6 Mi S Jct Of RTE 46.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT248 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

248 ft end to end, longest span 87 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.

Built197353 years old
Length248.0 ft75.6 m
Daily traffic10,891counted 2016
Last inspectedDecember 2024every 24 months

Location

StateMaine
CountyHancock
Location6 Mi S Jct Of RTE 46
CarriesMain RD
CrossesM C Rr
Coordinates44.68137, -68.57818

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length248.0 ft (75.6 m)
Max Span86.9 ft (26.5 m)
Deck Width51.5 ft (15.7 m)
Deck Area1186.9 sq m
Main Spans3
Year Built1973

Traffic

Avg Daily Traffic10,891 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number6324

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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