Structure 20901590012700 · Grafton County, NH

Nh 25c over Eastman Brook

Carries Nh 25c over Eastman Brook, 2.51 Mi. NW Of Warren Tl.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

27 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 slab bridge.

Built1936rebuilt 2013
Length27.2 ft8.3 m
Daily traffic451counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Hampshire
CountyGrafton
Location2.51 Mi. NW Of Warren Tl
CarriesNh 25c
CrossesEastman Brook
Coordinates43.99183, -71.98754

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length27.2 ft (8.3 m)
Max Span25.6 ft (7.8 m)
Deck Width35.1 ft (10.7 m)
Deck Area88.8 sq m
Main Spans1
Year Built1936 (reconstructed 2013)

Traffic

Avg Daily Traffic451 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical4 — Foundations need monitoring
Structure Number020901590012700

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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