Structure 1700910009800 · Carroll County, NH

Us302 over Albany Brook

Carries Us302 over Albany Brook, 1.0 Mi From Harts Loc. Tl.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very 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 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

40 ft end to end, longest span 17 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 slab bridge.

Built1928rebuilt 1994
Length40.0 ft12.2 m
Daily traffic2,713counted 2023
Last inspectedJune 2024every 24 months

Location

StateNew Hampshire
CountyCarroll
Location1.0 Mi From Harts Loc. Tl
CarriesUs302
CrossesAlbany Brook
Coordinates44.07384, -71.30039

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length40.0 ft (12.2 m)
Max Span17.1 ft (5.2 m)
Deck Width47.6 ft (14.5 m)
Deck Area176.9 sq m
Main Spans2
Year Built1928 (reconstructed 1994)

Traffic

Avg Daily Traffic2,713 (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 Number001700910009800

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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