Structure 1240001100003 · Hawaii County, HI

Kupulau RD over Waiakea Strm

Carries Kupulau RD over Waiakea Strm, Tmk 2-4-065:063.

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 overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

31 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.

Built1967rebuilt 1969
Length31.5 ft9.6 m
Daily traffic3,000counted 1986
Last inspectedNovember 2023every 24 months

Location

StateHawaii
CountyHawaii
LocationTmk 2-4-065:063
CarriesKupulau RD
CrossesWaiakea Strm
Coordinates19.67545, -155.10609

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length31.5 ft (9.6 m)
Max Span30.8 ft (9.4 m)
Deck Width32.2 ft (9.8 m)
Deck Area94.1 sq m
Main Spans1
Year Built1967 (reconstructed 1969)

Traffic

Avg Daily Traffic3,000 (1986)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number001240001100003

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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