Structure 12201100005100 · Hillsborough County, NH

Nh 9 over Beards Brook Beards RD

Carries Nh 9 over Beards Brook Beards RD, Nh 9 At Beards Brook.

Overall conditionGood

Set by its lowest-rated component: Superstructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT411 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

411 ft end to end, longest span 187 ft: about 6 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built200224 years old
Length411.1 ft125.3 m
Daily traffic7,409counted 2023
Last inspectedMarch 2024every 24 months

Location

StateNew Hampshire
CountyHillsborough
LocationNh 9 At Beards Brook
CarriesNh 9
CrossesBeards Brook Beards RD
Coordinates43.11725, -71.92934

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length411.1 ft (125.3 m)
Max Span187.0 ft (57 m)
Deck Width46.9 ft (14.3 m)
Deck Area1791.8 sq m
Main Spans3
Year Built2002

Traffic

Avg Daily Traffic7,409 (2023)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number012201100005100

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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