Structure 3000H10201805 · Honolulu County, HI

H.o.v.ramp H1(e.b) over Moanalua Stream

Carries H.o.v.ramp H1(e.b) over Moanalua Stream, 450s Kakoi ST.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,344 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,344 ft end to end, longest span 100 ft: about 3.7 football fields. 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.

Built198145 years old
Length1344.2 ft409.7 m
Daily traffic—reported figure implausible
Last inspectedFebruary 2024every 24 months

Location

StateHawaii
CountyHonolulu
Location450s Kakoi ST
CarriesH.o.v.ramp H1(e.b)
CrossesMoanalua Stream
Coordinates21.33362, -157.89197

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1344.2 ft (409.7 m)
Max Span100.1 ft (30.5 m)
Deck Width24.0 ft (7.3 m)
Deck Area2990.8 sq m
Main Spans15
Year Built1981

Traffic

Avg Daily Traffic67,900 (2017)
That is about 67,900 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number003000H10201805

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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