Structure 21300960007900 · Sullivan County, NH

Stage Road over Blow-me-down Brook

Carries Stage Road over Blow-me-down Brook, 2.0 Mi SE Jct 12a.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

73 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 multi-beam bridge.

Built195472 years old
Length73.2 ft22.3 m
Daily traffic574counted 2023
Last inspectedNovember 2024every 8 months

Location

StateNew Hampshire
CountySullivan
Location2.0 Mi SE Jct 12a
CarriesStage Road
CrossesBlow-me-down Brook
Coordinates43.52429, -72.32754

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length73.2 ft (22.3 m)
Max Span65.9 ft (20.1 m)
Deck Width27.6 ft (8.4 m)
Deck Area187.3 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic574 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 8 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number021300960007900

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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