Structure 22801160011600 · Rockingham County, NH

Bluff Street Ext over Widow Harris Brook

Carries Bluff Street Ext over Widow Harris Brook, 500 Feet From Town Farm R.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

35 ft end to end, longest span 16 ft. 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 rigid-frame bridge.

Built20206 years old
Length35.1 ft10.7 m
Daily traffic3,592counted 2023
Last inspectedAugust 2023every 24 months

Location

StateNew Hampshire
CountyRockingham
Location500 Feet From Town Farm R
CarriesBluff Street Ext
CrossesWidow Harris Brook
Coordinates42.80203, -71.19754

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length35.1 ft (10.7 m)
Max Span16.1 ft (4.9 m)
Deck Width29.9 ft (9.1 m)
Deck Area97.4 sq m
Main Spans2
Year Built2020

Traffic

Avg Daily Traffic3,592 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number022801160011600

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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