US Bridges

Kaukonahua RD over North Poamoho Strm

GoodPosted for load

Honolulu County, Hawaii · 0.05MI N/Hukilau Loop · Structure no. 003009300501823

Built
1934
91 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
164 ft
3 main spans
Daily traffic
7,600
2017 count
Owner
State
State Highway Agency

About this bridge

Kaukonahua RD over North Poamoho Strm is a concrete continuous slab carrying Kaukonahua RD over North Poamoho Strm in Honolulu County, Hawaii. It was built in 1934, so it is 91 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. Its operating status is: posted for load restriction.

It carries about 7,600 vehicles a day, roughly 4% of them trucks, projected to reach 8,388 by 2025. The structure is 164 ft (50 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKaukonahua RD
CrossesNorth Poamoho Strm
Location0.05MI N/Hukilau Loop
RouteU.S. Route 930
StateHawaii
Coordinates21.56484, -158.11116
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.5 US tons
Inventory rating9.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length164 ft (50 m)
Longest span62 ft (18.9 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,600 (2017)
Projected traffic8,388 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kaukonahua RD over North Poamoho Strm built?

It was built in 1934, making it 91 years old in 2025.

What condition is Kaukonahua RD over North Poamoho Strm 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 May 2024.

How much traffic does Kaukonahua RD over North Poamoho Strm carry?

About 7,600 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Kaukonahua RD over North Poamoho Strm?

The structure is 164 ft (50 m) long with a longest span of 62 ft (18.9 m) and a deck 28 ft wide.

Who owns Kaukonahua RD over North Poamoho Strm?

It is owned by the State Highway Agency.