Structure 7801090003400 · Rockingham County, NH

Nh101 EB over Piscassic River

Carries Nh101 EB over Piscassic River, 1.1mi E Nh101/nh125 Jct.

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 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

53 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.

Built199729 years old
Length53.1 ft16.2 m
Daily traffic20,631counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Hampshire
CountyRockingham
Location1.1mi E Nh101/nh125 Jct
CarriesNh101 EB
CrossesPiscassic River
Coordinates43.02439, -71.06299

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length53.1 ft (16.2 m)
Max Span46.9 ft (14.3 m)
Deck Width49.9 ft (15.2 m)
Deck Area246.2 sq m
Main Spans1
Year Built1997

Traffic

Avg Daily Traffic20,631 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number007801090003400

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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