Structure 13401210009200 · Cheshire County, NH

Gilmore Pond Road over Mountain Brook

Carries Gilmore Pond Road over Mountain Brook, 0.6 Mi From Nh RTE 124.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

30 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 deck arch.

Built1920106 years old
Length29.9 ft9.1 m
Daily traffic628counted 2023
Last inspectedJuly 2024every 24 months

Location

StateNew Hampshire
CountyCheshire
Location0.6 Mi From Nh RTE 124
CarriesGilmore Pond Road
CrossesMountain Brook
Coordinates42.81947, -72.05642

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length29.9 ft (9.1 m)
Max Span24.0 ft (7.3 m)
Deck Width24.9 ft (7.6 m)
Deck Area69.2 sq m
Main Spans1
Year Built1920

Traffic

Avg Daily Traffic628 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number013401210009200

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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