Structure 3700950006900 · Rockingham County, NH

Nh101 EB over Old Candia Road

Carries Nh101 EB over Old Candia Road, .85 Mi.e. Of Chester Tpk.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

155 ft end to end: about 2 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.

Built198541 years old
Length154.9 ft47.2 m
Daily traffic26,196counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Hampshire
CountyRockingham
Location.85 Mi.e. Of Chester Tpk
CarriesNh101 EB
CrossesOld Candia Road
Coordinates43.03715, -71.32578

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length154.9 ft (47.2 m)
Max Span149.0 ft (45.4 m)
Deck Width44.6 ft (13.6 m)
Deck Area641.9 sq m
Main Spans1
Year Built1985

Traffic

Avg Daily Traffic26,196 (2023)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number003700950006900

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