Structure 26901660005900 · Grafton County, NH

Nh 25 Nh118 over S Branch Baker River

Carries Nh 25 Nh118 over S Branch Baker River, 0.1 Mi W Of Rumney Tl.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT218 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

218 ft end to end, longest span 84 ft: about 3 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.

Built197848 years old
Length217.8 ft66.4 m
Daily traffic3,993counted 2023
Last inspectedJune 2024every 24 months

Location

StateNew Hampshire
CountyGrafton
Location0.1 Mi W Of Rumney Tl
CarriesNh 25 Nh118
CrossesS Branch Baker River
Coordinates43.82355, -71.89217

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length217.8 ft (66.4 m)
Max Span84.0 ft (25.6 m)
Deck Width46.6 ft (14.2 m)
Deck Area942.9 sq m
Main Spans3
Year Built1978

Traffic

Avg Daily Traffic3,993 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number026901660005900

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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