Structure 10201100010000 · Rockingham County, NH

Nh 33 over Winnicut River

Carries Nh 33 over Winnicut River, 1.4 Mi From Stratham Tl.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

65 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.

Built1959rebuilt 2004
Length65.0 ft19.8 m
Daily traffic17,736counted 2023
Last inspectedNovember 2024every 8 months

Location

StateNew Hampshire
CountyRockingham
Location1.4 Mi From Stratham Tl
CarriesNh 33
CrossesWinnicut River
Coordinates43.03610, -70.84800

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length65.0 ft (19.8 m)
Max Span60.0 ft (18.3 m)
Deck Width48.9 ft (14.9 m)
Deck Area295.0 sq m
Main Spans1
Year Built1959 (reconstructed 2004)

Traffic

Avg Daily Traffic17,736 (2023)
Truck Traffic7%
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 Number010201100010000

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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