Structure 3H1WB11460015 · Honolulu County, HI

Ramp Ea over Ramp Iw-b Camp Catlin RD

Carries Ramp Ea over Ramp Iw-b Camp Catlin RD, Hnl Exit From H1 WB.

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
SEMI-TRUCK · 72 FT2,464 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

2,464 ft end to end, longest span 128 ft: about 6.8 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 box-beam bridge.

Built198046 years old
Length2463.9 ft751 m
Daily traffic8,300counted 2020
Last inspectedOctober 2024every 24 months

Location

StateHawaii
CountyHonolulu
LocationHnl Exit From H1 WB
CarriesRamp Ea
CrossesRamp Iw-b Camp Catlin RD
Coordinates21.33719, -157.91231

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length2463.9 ft (751 m)
Max Span127.6 ft (38.9 m)
Deck Width30.5 ft (9.3 m)
Deck Area6984.3 sq m
Main Spans27
Year Built1980

Traffic

Avg Daily Traffic8,300 (2020)
Truck Traffic2%
Lanes On Bridge1
Lanes Under Bridge6

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number003H1WB11460015

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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