Structure F0303245VDOTNBI · Barnstable County, MA

ST 28 NB over St151 Nathan Ellis HWY

Carries ST 28 NB over St151 Nathan Ellis HWY, .75 M S Of Bourne Tl.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT132 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

132 ft end to end, longest span 65 ft. 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
Length131.9 ft40.2 m
Daily traffic18,620counted 2024
Last inspectedDecember 2024every 12 months

Location

StateMassachusetts
CountyBarnstable
Location.75 M S Of Bourne Tl
CarriesST 28 NB
CrossesSt151 Nathan Ellis HWY
Coordinates41.64458, -70.60455

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length131.9 ft (40.2 m)
Max Span65.0 ft (19.8 m)
Deck Width44.6 ft (13.6 m)
Deck Area546.7 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic18,620 (2024)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberF0303245VDOTNBI

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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