Structure 3341 · Lincoln County, ME

Patterson RD over Eastern River

Carries Patterson RD over Eastern River, 0.2 Mi W Of Jct RTE 127.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT297 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9 · sets the ratingSubstructure 4/9

297 ft end to end: about 4 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 through truss.

Built193690 years old
Length296.9 ft90.5 m
Daily traffic1,550counted 2016
Last inspectedNovember 2024every 12 months

Location

StateMaine
CountyLincoln
Location0.2 Mi W Of Jct RTE 127
CarriesPatterson RD
CrossesEastern River
Coordinates44.08396, -69.74814

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length296.9 ft (90.5 m)
Max Span259.8 ft (79.2 m)
Deck Width23.0 ft (7 m)
Deck Area633.5 sq m
Main Spans1
Year Built1936

Traffic

Avg Daily Traffic1,550 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number3341

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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