US Bridges

Makai Frontage RD over Moanalua Stream

Good

Honolulu County, Hawaii · 350S Kakoi ST · Structure no. 003000H10201764

Built
1982
43 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,223 ft
22 main spans
Daily traffic
112,800
2017 count
Owner
State
State Highway Agency

About this bridge

Makai Frontage RD over Moanalua Stream is a prestressed concrete stringer/multi-beam or girder carrying Makai Frontage RD over Moanalua Stream in Honolulu County, Hawaii. It was built in 1982, so it is 43 years old, younger 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 112,800 vehicles a day, roughly 4% of them trucks, projected to reach 166,683 by 2025. The structure is 1,223 ft (372.8 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMakai Frontage RD
CrossesMoanalua Stream
Location350S Kakoi ST
RouteInterstate 0H1
StateHawaii
Coordinates21.33341, -157.89362
Functional classUrban Principal Arterial - Interstate

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating33.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans22
Design loadHS 20
Structure length1,223 ft (372.8 m)
Longest span57 ft (17.4 m)
Deck width39 ft (11.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112,800 (2017)
Projected traffic166,683 by 2025
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$5.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Makai Frontage RD over Moanalua Stream built?

It was built in 1982, making it 43 years old in 2025.

What condition is Makai Frontage RD over Moanalua Stream 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 February 2024.

How much traffic does Makai Frontage RD over Moanalua Stream carry?

About 112,800 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Makai Frontage RD over Moanalua Stream?

The structure is 1,223 ft (372.8 m) long with a longest span of 57 ft (17.4 m) and a deck 39 ft wide.

Who owns Makai Frontage RD over Moanalua Stream?

It is owned by the State Highway Agency.