US Bridges

Haleakala HWY over Lowrie Ditch

Good

Maui County, Hawaii · Haleakala Hwy/Keahua Chrd · Structure no. 009000370301975

Built
2007
18 years old
Condition
Good
inspected January 2025
Type
Slab
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
32,700
2017 count
Owner
State
State Highway Agency

About this bridge

Haleakala HWY over Lowrie Ditch is a prestressed concrete slab carrying Haleakala HWY over Lowrie Ditch in Maui County, Hawaii. It was built in 2007, so it is 18 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 32,700 vehicles a day, projected to reach 35,900 by 2018. The structure is 53 ft (16.2 m) long and 41 ft wide.

CarriesHaleakala HWY
CrossesLowrie Ditch
LocationHaleakala Hwy/Keahua Chrd
RouteU.S. Route 37
StateHawaii
Coordinates20.8675, -156.38056
Functional classRural Principal Arterial - Other

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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating98.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,700 (2017)
Projected traffic35,900 by 2018
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Haleakala HWY over Lowrie Ditch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Haleakala HWY over Lowrie Ditch 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 January 2025.

How much traffic does Haleakala HWY over Lowrie Ditch carry?

About 32,700 vehicles per day (2017 count).

How long is Haleakala HWY over Lowrie Ditch?

The structure is 53 ft (16.2 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns Haleakala HWY over Lowrie Ditch?

It is owned by the State Highway Agency.