Structure 5202000001500 · Merrimack County, NH

Hooksett Turnpike over Bela Brook

Carries Hooksett Turnpike over Bela Brook, 0.18 Mi Fr Bow Tl.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

47 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.

Built20215 years old
Length46.9 ft14.3 m
Daily traffic727counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Hampshire
CountyMerrimack
Location0.18 Mi Fr Bow Tl
CarriesHooksett Turnpike
CrossesBela Brook
Coordinates43.15478, -71.59243

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length46.9 ft (14.3 m)
Max Span42.0 ft (12.8 m)
Deck Width33.1 ft (10.1 m)
Deck Area144.4 sq m
Main Spans1
Year Built2021

Traffic

Avg Daily Traffic727 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number005202000001500

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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