US Bridges

Mailiilii RD over Mailiilii Channel

Fair

Honolulu County, Hawaii · TMK=8-6-13 · Structure no. 003834001100001

Built
1970
55 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
99 ft
2 main spans
Daily traffic
5,517
1990 count
Owner
County
County Highway Agency

About this bridge

Mailiilii RD over Mailiilii Channel is a prestressed concrete continuous tee beam carrying Mailiilii RD over Mailiilii Channel in Honolulu County, Hawaii. It was built in 1970, so it is 55 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 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 5,517 vehicles a day, projected to reach 6,896 by 2025. The structure is 99 ft (30.1 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMailiilii RD
CrossesMailiilii Channel
LocationTMK=8-6-13
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.43313, -158.16982
Functional classUrban Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating43.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length99 ft (30.1 m)
Longest span50 ft (15.2 m)
Deck width38 ft (11.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,517 (1990)
Projected traffic6,896 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$579,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mailiilii RD over Mailiilii Channel built?

It was built in 1970, making it 55 years old in 2025.

What condition is Mailiilii RD over Mailiilii Channel 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 January 2024.

How much traffic does Mailiilii RD over Mailiilii Channel carry?

About 5,517 vehicles per day (1990 count).

How long is Mailiilii RD over Mailiilii Channel?

The structure is 99 ft (30.1 m) long with a longest span of 50 ft (15.2 m) and a deck 38 ft wide.

Who owns Mailiilii RD over Mailiilii Channel?

It is owned by the County Highway Agency.