Structure 5789 · Penobscot County, ME

I 95 over Route 15 (broadway)

Carries I 95 over Route 15 (broadway), Interchange #48.

Overall conditionPoor

Set by its lowest-rated component: Deck and Substructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT156 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 4/9 · sets the rating

156 ft end to end, longest span 82 ft: 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.

Built196066 years old
Length156.5 ft47.7 m
Daily traffic25,340counted 2016
Last inspectedJuly 2024every 24 months

Location

StateMaine
CountyPenobscot
LocationInterchange #48
CarriesI 95
CrossesRoute 15 (broadway)
Coordinates44.81931, -68.77542

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length156.5 ft (47.7 m)
Max Span82.0 ft (25 m)
Deck Width92.2 ft (28.1 m)
Deck Area1340.4 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic25,340 (2016)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number5789

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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