US Bridges

Maunaloa HWY over Unmd Strm-Kalamaula #4

Good

Maui County, Hawaii · 0.18MI E/Lehua Ave · Structure no. 009004600501489

Built
1954
71 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
5,400
2017 count
Owner
State
State Highway Agency

About this bridge

Maunaloa HWY over Unmd Strm-Kalamaula #4 is a concrete slab carrying Maunaloa HWY over Unmd Strm-Kalamaula #4 in Maui County, Hawaii. It was built in 1954, so it is 71 years old, older 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 5,400 vehicles a day, roughly 3% of them trucks, projected to reach 1,900 by 2025. The structure is 33 ft (10.1 m) long and 39 ft wide.

CarriesMaunaloa HWY
CrossesUnmd Strm-Kalamaula #4
Location0.18MI E/Lehua Ave
RouteU.S. Route 460
StateHawaii
Coordinates21.09851, -157.04194
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2017)
Projected traffic1,900 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$255,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Maunaloa HWY over Unmd Strm-Kalamaula #4 built?

It was built in 1954, making it 71 years old in 2025.

What condition is Maunaloa HWY over Unmd Strm-Kalamaula #4 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 November 2024.

How much traffic does Maunaloa HWY over Unmd Strm-Kalamaula #4 carry?

About 5,400 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Maunaloa HWY over Unmd Strm-Kalamaula #4?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 39 ft wide.

Who owns Maunaloa HWY over Unmd Strm-Kalamaula #4?

It is owned by the State Highway Agency.