Structure 5002020006000 · Coos County, NH

Balsams Bk DR Pvt over Balsam Pond Brook

Carries Balsams Bk DR Pvt over Balsam Pond Brook, 0.3 Mi West Of Dixville.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

31 ft end to end. 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.

Built200818 years old
Length30.5 ft9.3 m
Daily traffic20counted 2007
Last inspectedSeptember 2023every 24 months

Location

StateNew Hampshire
CountyCoos
Location0.3 Mi West Of Dixville
CarriesBalsams Bk DR Pvt
CrossesBalsam Pond Brook
Coordinates44.86849, -71.34101

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length30.5 ft (9.3 m)
Max Span26.2 ft (8 m)
Deck Width22.6 ft (6.9 m)
Deck Area64.2 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic20 (2007)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number005002020006000

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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