Structure 3909 · Aroostook County, ME

Dickey RD over Saint John River

Carries Dickey RD over Saint John River, 8.5 Mi West Of ST Francis.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT863 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

863 ft end to end, longest span 152 ft: about 2.4 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.

Built199432 years old
Length862.5 ft262.9 m
Daily traffic370counted 2016
Last inspectedOctober 2024every 24 months

Location

StateMaine
CountyAroostook
Location8.5 Mi West Of ST Francis
CarriesDickey RD
CrossesSaint John River
Coordinates47.11356, -69.08967

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length862.5 ft (262.9 m)
Max Span151.9 ft (46.3 m)
Deck Width31.8 ft (9.7 m)
Deck Area2550.1 sq m
Main Spans6
Year Built1994

Traffic

Avg Daily Traffic370 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number3909

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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