Structure D07001BAHMUNNBI · Barnstable County, MA

HWY Upper County over Water Swan Pond River

Carries HWY Upper County over Water Swan Pond River, .9 Mi W Of RTE 28.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT89 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

89 ft end to end, longest span 28 ft. Lengths and the car 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 slab bridge.

Built201412 years old
Length88.6 ft27 m
Daily traffic16,552counted 2023
Last inspectedMay 2023every 24 months

Location

StateMassachusetts
CountyBarnstable
Location.9 Mi W Of RTE 28
CarriesHWY Upper County
CrossesWater Swan Pond River
Coordinates41.67372, -70.14010

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSlab
Total Length88.6 ft (27 m)
Max Span28.2 ft (8.6 m)
Deck Width40.7 ft (12.4 m)
Deck Area334.8 sq m
Main Spans3
Year Built2014

Traffic

Avg Daily Traffic16,552 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberD07001BAHMUNNBI

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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