US Bridges

Waipuka Pl. over Waipuka Pl/Waipio Chl #1

Good

Honolulu County, Hawaii · TMK=9-5-08 · Structure no. 003956001100001

Built
1957
68 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
50
1990 count
Owner
County
County Highway Agency

About this bridge

Waipuka Pl. over Waipuka Pl/Waipio Chl #1 is a concrete continuous culvert carrying Waipuka Pl. over Waipuka Pl/Waipio Chl #1 in Honolulu County, Hawaii. It was built in 1957, so it is 68 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 63 by 2025. The structure is 21 ft (6.4 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesWaipuka Pl.
CrossesWaipuka Pl/Waipio Chl #1
LocationTMK=9-5-08
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.45967, -158.01848
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.8 US tons
Inventory rating47.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width32 ft (9.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1990)
Projected traffic63 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Waipuka Pl. over Waipuka Pl/Waipio Chl #1 built?

It was built in 1957, making it 68 years old in 2025.

What condition is Waipuka Pl. over Waipuka Pl/Waipio Chl #1 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Waipuka Pl. over Waipuka Pl/Waipio Chl #1 carry?

About 50 vehicles per day (1990 count).

How long is Waipuka Pl. over Waipuka Pl/Waipio Chl #1?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns Waipuka Pl. over Waipuka Pl/Waipio Chl #1?

It is owned by the County Highway Agency.