Structure 13601290009900 · Cheshire County, NH

Nh 9 Nh 10 over Elm Street

Carries Nh 9 Nh 10 over Elm Street, 0.8 Mi East Of Jct 12.

Overall conditionFair

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

How ratings work
Deck9/9 · Excellent
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT78 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 6/9 · sets the ratingSubstructure 7/9

78 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 multi-beam bridge.

Built1978rebuilt 2016
Length78.1 ft23.8 m
Daily traffic10,814counted 2023
Last inspectedMarch 2023every 24 months

Location

StateNew Hampshire
CountyCheshire
Location0.8 Mi East Of Jct 12
CarriesNh 9 Nh 10
CrossesElm Street
Coordinates42.94953, -72.28235

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length78.1 ft (23.8 m)
Max Span68.9 ft (21 m)
Deck Width52.8 ft (16.1 m)
Deck Area383.2 sq m
Main Spans1
Year Built1978 (reconstructed 2016)

Traffic

Avg Daily Traffic10,814 (2023)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number013601290009900

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