US Bridges

Honoapiilani HWY over Honokahua Strm

Good

Maui County, Hawaii · 0.5MI N/Office RD · Structure no. 009000300303055

Built
1986
39 years old
Condition
Good
inspected April 2024
Type
Girder and Floorbeam System
Prestressed Concrete Continuous
Length
604 ft
6 main spans
Daily traffic
4,300
2017 count
Owner
State
State Highway Agency

About this bridge

Honoapiilani HWY over Honokahua Strm is a prestressed concrete continuous girder and floorbeam system carrying Honoapiilani HWY over Honokahua Strm in Maui County, Hawaii. It was built in 1986, so it is 39 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 4,300 vehicles a day, roughly 1% of them trucks, projected to reach 2,696 by 2025. The structure is 604 ft (184.1 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHonoapiilani HWY
CrossesHonokahua Strm
Location0.5MI N/Office RD
RouteU.S. Route 30
StateHawaii
Coordinates20.99981, -156.64953
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating53.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length604 ft (184.1 m)
Longest span99 ft (30.3 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2017)
Projected traffic2,696 by 2025
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Honoapiilani HWY over Honokahua Strm built?

It was built in 1986, making it 39 years old in 2025.

What condition is Honoapiilani HWY over Honokahua 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 April 2024.

How much traffic does Honoapiilani HWY over Honokahua Strm carry?

About 4,300 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Honoapiilani HWY over Honokahua Strm?

The structure is 604 ft (184.1 m) long with a longest span of 99 ft (30.3 m) and a deck 54 ft wide.

Who owns Honoapiilani HWY over Honokahua Strm?

It is owned by the State Highway Agency.