Structure 2801400014400 · Merrimack County, NH

Bradford Center RD over W Br Warner River

Carries Bradford Center RD over W Br Warner River, 6.3 Mi Washington Tl.

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 overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

64 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 through truss.

Built1854rebuilt 2021
Length63.6 ft19.4 m
Daily traffic96counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateNew Hampshire
CountyMerrimack
Location6.3 Mi Washington Tl
CarriesBradford Center RD
CrossesW Br Warner River
Coordinates43.26407, -71.95316

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length63.6 ft (19.4 m)
Max Span56.4 ft (17.2 m)
Deck Width19.0 ft (5.8 m)
Deck Area112.5 sq m
Main Spans1
Year Built1854 (reconstructed 2021)

Traffic

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

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number002801400014400

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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