US Bridges

Kam V HWY over Kamalo-Unmd Strm

Fair

Maui County, Hawaii · 0.49MI W/Kamalo Wharf · Structure no. 009004500500964

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete Continuous
Length
46 ft
2 main spans
Daily traffic
1,300
2017 count
Owner
State
State Highway Agency

About this bridge

Kam V HWY over Kamalo-Unmd Strm is a prestressed concrete continuous slab carrying Kam V HWY over Kamalo-Unmd Strm in Maui County, Hawaii. It was built in 1980, so it is 45 years old, younger 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 6 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 1,300 vehicles a day, roughly 2% of them trucks, projected to reach 1,561 by 2025. The structure is 46 ft (13.9 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKam V HWY
CrossesKamalo-Unmd Strm
Location0.49MI W/Kamalo Wharf
RouteU.S. Route 450
StateHawaii
Coordinates21.04872, -156.88206
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length46 ft (13.9 m)
Longest span22 ft (6.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2017)
Projected traffic1,561 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$250,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam V HWY over Kamalo-Unmd Strm built?

It was built in 1980, making it 45 years old in 2025.

What condition is Kam V HWY over Kamalo-Unmd 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 October 2024.

How much traffic does Kam V HWY over Kamalo-Unmd Strm carry?

About 1,300 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kam V HWY over Kamalo-Unmd Strm?

The structure is 46 ft (13.9 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.

Who owns Kam V HWY over Kamalo-Unmd Strm?

It is owned by the State Highway Agency.