Structure 7056000400161 · Kauai County, HI

Kapaa Bypass Road over Kainahola Stream

Carries Kapaa Bypass Road over Kainahola Stream, 1.6 Mi N Of Kuhio HWY.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

56 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.

Built1937rebuilt 2011
Length56.1 ft17.1 m
Daily traffic105counted 2007
Last inspectedMay 2023every 24 months

Location

StateHawaii
CountyKauai
Location1.6 Mi N Of Kuhio HWY
CarriesKapaa Bypass Road
CrossesKainahola Stream
Coordinates22.07239, -159.32986

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length56.1 ft (17.1 m)
Max Span48.2 ft (14.7 m)
Deck Width24.9 ft (7.6 m)
Deck Area130.0 sq m
Main Spans1
Year Built1937 (reconstructed 2011)

Traffic

Avg Daily Traffic105 (2007)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number007056000400161

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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