US Bridges

Kapiolani ST over Waiakea Stream

Good

Hawaii County, Hawaii · Tmk: 2-4-001:019 · Structure no. 001240021100008

Built
2016
9 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
2,300
2014 count
Owner
County
County Highway Agency

About this bridge

Kapiolani ST over Waiakea Stream is a prestressed concrete box beam or girders - multiple carrying Kapiolani ST over Waiakea Stream in Hawaii County, Hawaii. It was built in 2016, so it is 9 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 2% of them trucks, projected to reach 2,300 by 2025. The structure is 76 ft (23.2 m) long and 63 ft wide.

CarriesKapiolani ST
CrossesWaiakea Stream
LocationTmk: 2-4-001:019
StateHawaii
Coordinates19.70778, -155.08139
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length76 ft (23.2 m)
Longest span29 ft (8.8 m)
Deck width63 ft (19.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic2,300 (2014)
Projected traffic2,300 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kapiolani ST over Waiakea Stream built?

It was built in 2016, making it 9 years old in 2025.

What condition is Kapiolani ST over Waiakea Stream 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 January 2025.

How much traffic does Kapiolani ST over Waiakea Stream carry?

About 2,300 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Kapiolani ST over Waiakea Stream?

The structure is 76 ft (23.2 m) long with a longest span of 29 ft (8.8 m) and a deck 63 ft wide.

Who owns Kapiolani ST over Waiakea Stream?

It is owned by the County Highway Agency.