US Bridges

Kam HWY over Kalauao Spring (w.B)

Fair

Honolulu County, Hawaii · 0.11MI E/Lipoa Pl · Structure no. 003000990402054

Built
1945
80 years old, rebuilt 1966
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
49,300
2017 count
Owner
State
State Highway Agency

About this bridge

Kam HWY over Kalauao Spring (w.B) is a prestressed concrete stringer/multi-beam or girder carrying Kam HWY over Kalauao Spring (w.B) in Honolulu County, Hawaii. It was built in 1945 and reconstructed in 1966, so it is 80 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 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 49,300 vehicles a day, roughly 2% of them trucks, projected to reach 67,900 by 2025. The structure is 54 ft (16.5 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKam HWY
CrossesKalauao Spring (w.B)
Location0.11MI E/Lipoa Pl
RouteU.S. Route 99
CountyHonolulu County
StateHawaii
Coordinates21.38211, -157.94315
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34.3 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length54 ft (16.5 m)
Longest span27 ft (8.2 m)
Deck width46 ft (14.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,300 (2017)
Projected traffic67,900 by 2025
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
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$406,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kam HWY over Kalauao Spring (w.B) built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1966.

What condition is Kam HWY over Kalauao Spring (w.B) 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 February 2023.

How much traffic does Kam HWY over Kalauao Spring (w.B) carry?

About 49,300 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Kam HWY over Kalauao Spring (w.B)?

The structure is 54 ft (16.5 m) long with a longest span of 27 ft (8.2 m) and a deck 46 ft wide.

Who owns Kam HWY over Kalauao Spring (w.B)?

It is owned by the State Highway Agency.