US Bridges

Hana HWY over Hillside Bridge No. 1

GoodPosted for load

Maui County, Hawaii · 11.4MI Ne/Hana HWY · Structure no. 009003600501140

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
115 ft
1 main span
Daily traffic
1,800
2017 count
Owner
State
State Highway Agency

About this bridge

Hana HWY over Hillside Bridge No. 1 is a concrete slab carrying Hana HWY over Hillside Bridge No. 1 in Maui County, Hawaii. It was built in 2003, so it is 22 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 8 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 115 ft (35.1 m) long and 11 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. 1
Location11.4MI Ne/Hana HWY
RouteU.S. Route 360
CountyMaui County
StateHawaii
Coordinates20.86722, -156.17639
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.9 US tons
Inventory rating52.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span115 ft (35.1 m)
Deck width11 ft (3.5 m)
Roadway width19 ft (5.8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hana HWY over Hillside Bridge No. 1 built?

It was built in 2003, making it 22 years old in 2025.

What condition is Hana HWY over Hillside Bridge No. 1 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 June 2023.

How much traffic does Hana HWY over Hillside Bridge No. 1 carry?

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

How long is Hana HWY over Hillside Bridge No. 1?

The structure is 115 ft (35.1 m) long with a longest span of 115 ft (35.1 m) and a deck 11 ft wide.

Who owns Hana HWY over Hillside Bridge No. 1?

It is owned by the State Highway Agency.