US Bridges

Kapiolani ST over Alenaio Stream

Good

Hawaii County, Hawaii · Tmk: 2-3-018:077 · Structure no. 001230001100007

Built
1996
29 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
2,000
1986 count
Owner
County
County Highway Agency

About this bridge

Kapiolani ST over Alenaio Stream is a concrete slab carrying Kapiolani ST over Alenaio Stream in Hawaii County, Hawaii. It was built in 1996, so it is 29 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 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 2,000 vehicles a day, projected to reach 2,880 by 2030. The structure is 34 ft (10.4 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesKapiolani ST
CrossesAlenaio Stream
LocationTmk: 2-3-018:077
RouteCity Street 0
CountyHawaii County
StateHawaii
Coordinates19.71693, -155.08707
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
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 alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating89.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (1986)
Projected traffic2,880 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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$183,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kapiolani ST over Alenaio Stream built?

It was built in 1996, making it 29 years old in 2025.

What condition is Kapiolani ST over Alenaio 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 July 2024.

How much traffic does Kapiolani ST over Alenaio Stream carry?

About 2,000 vehicles per day (1986 count).

How long is Kapiolani ST over Alenaio Stream?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 40 ft wide.

Who owns Kapiolani ST over Alenaio Stream?

It is owned by the County Highway Agency.