Structure 10001160009300 · Sullivan County, NH

Old Nh 10 over Skinner Brook

Carries Old Nh 10 over Skinner Brook, 3.11 Mi. N. Of Croydon Tl.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT48 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 6/9

48 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 tee-beam bridge.

Built1930rebuilt 1990
Length47.9 ft14.6 m
Daily traffic96counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Hampshire
CountySullivan
Location3.11 Mi. N. Of Croydon Tl
CarriesOld Nh 10
CrossesSkinner Brook
Coordinates43.50843, -72.13226

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length47.9 ft (14.6 m)
Max Span44.0 ft (13.4 m)
Deck Width28.9 ft (8.8 m)
Deck Area128.5 sq m
Main Spans1
Year Built1930 (reconstructed 1990)

Traffic

Avg Daily Traffic96 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number010001160009300

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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