US Bridges

Maunaloa HWY over Kaunakakai Strm

Fair

Maui County, Hawaii · 0.01MI E/Manila Pl · Structure no. 009004600501611

Built
1953
72 years old, rebuilt 1971
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
54 ft
16 main spans
Daily traffic
6,000
2017 count
Owner
State
State Highway Agency

About this bridge

Maunaloa HWY over Kaunakakai Strm is a concrete culvert carrying Maunaloa HWY over Kaunakakai Strm in Maui County, Hawaii. It was built in 1953 and reconstructed in 1971, so it is 72 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 6,000 vehicles a day, roughly 3% of them trucks, projected to reach 1,721 by 2025. The structure is 54 ft (16.4 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesMaunaloa HWY
CrossesKaunakakai Strm
Location0.01MI E/Manila Pl
RouteU.S. Route 460
CountyMaui County
StateHawaii
Coordinates21.09049, -157.02523
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.5 US tons
Inventory rating22.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans16
Design loadHS 20
Structure length54 ft (16.4 m)
Longest span3 ft (0.9 m)
Deck width44 ft (13.3 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2017)
Projected traffic1,721 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$479,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Maunaloa HWY over Kaunakakai Strm built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1971.

What condition is Maunaloa HWY over Kaunakakai Strm 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 November 2024.

How much traffic does Maunaloa HWY over Kaunakakai Strm carry?

About 6,000 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Maunaloa HWY over Kaunakakai Strm?

The structure is 54 ft (16.4 m) long with a longest span of 3 ft (0.9 m) and a deck 44 ft wide.

Who owns Maunaloa HWY over Kaunakakai Strm?

It is owned by the State Highway Agency.