Structure 3301 · Penobscot County, ME

Griffin RD over Kenduskeag Stream

Carries Griffin RD over Kenduskeag Stream, 0.2 Mi NE Of Jct Ohio ST.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT152 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

152 ft end to end: about 2 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.

Built199234 years old
Length151.9 ft46.3 m
Daily traffic12,007counted 2016
Last inspectedAugust 2023every 24 months

Location

StateMaine
CountyPenobscot
Location0.2 Mi NE Of Jct Ohio ST
CarriesGriffin RD
CrossesKenduskeag Stream
Coordinates44.82606, -68.80635

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length151.9 ft (46.3 m)
Max Span149.0 ft (45.4 m)
Deck Width49.9 ft (15.2 m)
Deck Area703.8 sq m
Main Spans1
Year Built1992

Traffic

Avg Daily Traffic12,007 (2016)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number3301

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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