US Bridges

Naniloa DR over Kaahumanu Ave

Fair

Maui County, Hawaii · 0.06MI W/Aku Pl · Structure no. 009000321200060

Built
1936
89 years old
Condition
Fair
inspected August 2024
Type
Frame
Concrete Continuous
Length
63 ft
1 main span
Daily traffic
24,700
2017 count
Owner
State
State Highway Agency

About this bridge

Naniloa DR over Kaahumanu Ave is a concrete continuous frame carrying Naniloa DR over Kaahumanu Ave in Maui County, Hawaii. It was built in 1936, so it is 89 years old, older than the Hawaii average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 24,700 vehicles a day, roughly 2% of them trucks, projected to reach 40,888 by 2025. The structure is 63 ft (19.2 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesNaniloa DR
CrossesKaahumanu Ave
Location0.06MI W/Aku Pl
RouteCity Street 0
CountyMaui County
StateHawaii
Coordinates20.88885, -156.49602
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating89.6 US tons
Inventory rating68.9 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length63 ft (19.2 m)
Longest span57 ft (17.4 m)
Deck width28 ft (8.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,700 (2017)
Projected traffic40,888 by 2025
Trucks2%
Lanes on structure2
Traffic directionHighway traffic not carried
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Naniloa DR over Kaahumanu Ave built?

It was built in 1936, making it 89 years old in 2025.

What condition is Naniloa DR over Kaahumanu Ave in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Naniloa DR over Kaahumanu Ave carry?

About 24,700 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Naniloa DR over Kaahumanu Ave?

The structure is 63 ft (19.2 m) long with a longest span of 57 ft (17.4 m) and a deck 28 ft wide.

Who owns Naniloa DR over Kaahumanu Ave?

It is owned by the State Highway Agency.