Structure 14400660005900 · Grafton County, NH

Trues Brook Road over Bloods Brook

Carries Trues Brook Road over Bloods Brook, 0.4 Mi Fr Plainfield Tl.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 5/9Substructure 6/9

65 ft end to end, longest span 31 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 multi-beam bridge.

Built1952rebuilt 1986
Length65.0 ft19.8 m
Daily traffic1,089counted 2023
Last inspectedOctober 2024every 16 months

Location

StateNew Hampshire
CountyGrafton
Location0.4 Mi Fr Plainfield Tl
CarriesTrues Brook Road
CrossesBloods Brook
Coordinates43.60199, -72.30743

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length65.0 ft (19.8 m)
Max Span30.8 ft (9.4 m)
Deck Width22.0 ft (6.7 m)
Deck Area132.7 sq m
Main Spans2
Year Built1952 (reconstructed 1986)

Traffic

Avg Daily Traffic1,089 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 16 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical3 — Scour critical
Structure Number014400660005900

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.

Nearby Bridges