US Bridges

Hana HWY over Kaapahu Strm

Poor

Maui County, Hawaii · 9.84MI W/Rd to Hamoa · Structure no. 009003600903909

Built
1983
42 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
245
1998 count
Owner
County
County Highway Agency

About this bridge

Hana HWY over Kaapahu Strm is a prestressed concrete stringer/multi-beam or girder carrying Hana HWY over Kaapahu Strm in Maui County, Hawaii. It was built in 1983, so it is 42 years old, younger than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 245 vehicles a day, projected to reach 306 by 2025. The structure is 36 ft (11 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesHana HWY
CrossesKaapahu Strm
Location9.84MI W/Rd to Hamoa
RouteCounty Highway 360
CountyMaui County
StateHawaii
Coordinates20.65136, -156.07916
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span30 ft (9 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (1998)
Projected traffic306 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$174,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hana HWY over Kaapahu Strm built?

It was built in 1983, making it 42 years old in 2025.

What condition is Hana HWY over Kaapahu Strm in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Hana HWY over Kaapahu Strm carry?

About 245 vehicles per day (1998 count).

How long is Hana HWY over Kaapahu Strm?

The structure is 36 ft (11 m) long with a longest span of 30 ft (9 m) and a deck 23 ft wide.

Who owns Hana HWY over Kaapahu Strm?

It is owned by the County Highway Agency.