US Bridges

Hana HWY over Hillside Bridge No. 6

GoodPosted for load

Maui County, Hawaii · 19.2 MI NE Hana HWY · Structure no. 009003600501920

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
33 ft
1 main span
Daily traffic
1,800
2017 count
Owner
State
State Highway Agency

About this bridge

Hana HWY over Hillside Bridge No. 6 is a concrete stringer/multi-beam or girder carrying Hana HWY over Hillside Bridge No. 6 in Maui County, Hawaii. It was built in 2001, so it is 24 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. Its operating status is: posted for load restriction.

It carries about 1,800 vehicles a day, projected to reach 2,250 by 2033. The structure is 33 ft (10.1 m) long and 9 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHana HWY
CrossesHillside Bridge No. 6
Location19.2 MI NE Hana HWY
RouteU.S. Route 360
CountyMaui County
StateHawaii
Coordinates20.83278, -156.13861
Functional classRural Major Collector

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span33 ft (10.1 m)
Deck width9 ft (2.7 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2017)
Projected traffic2,250 by 2033
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 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 Hana HWY over Hillside Bridge No. 6 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Hana HWY over Hillside Bridge No. 6 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 2023.

How much traffic does Hana HWY over Hillside Bridge No. 6 carry?

About 1,800 vehicles per day (2017 count).

How long is Hana HWY over Hillside Bridge No. 6?

The structure is 33 ft (10.1 m) long with a longest span of 33 ft (10.1 m) and a deck 9 ft wide.

Who owns Hana HWY over Hillside Bridge No. 6?

It is owned by the State Highway Agency.