US Bridges

Kal HWY over Maunawili Strm

Good

Honolulu County, Hawaii · 0.18MI E/Auloa RD · Structure no. 003000610400912

Built
1951
74 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
47,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kal HWY over Maunawili Strm is a concrete continuous tee beam carrying Kal HWY over Maunawili Strm in Honolulu County, Hawaii. It was built in 1951, so it is 74 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 47,500 vehicles a day, roughly 3% of them trucks, projected to reach 61,710 by 2025. The structure is 122 ft (37.2 m) long and 73 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKal HWY
CrossesMaunawili Strm
Location0.18MI E/Auloa RD
RouteU.S. Route 61
StateHawaii
Coordinates21.37767, -157.76053
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length122 ft (37.2 m)
Longest span36 ft (11 m)
Deck width73 ft (22.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,500 (2017)
Projected traffic61,710 by 2025
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kal HWY over Maunawili Strm built?

It was built in 1951, making it 74 years old in 2025.

What condition is Kal HWY over Maunawili Strm 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 August 2024.

How much traffic does Kal HWY over Maunawili Strm carry?

About 47,500 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Kal HWY over Maunawili Strm?

The structure is 122 ft (37.2 m) long with a longest span of 36 ft (11 m) and a deck 73 ft wide.

Who owns Kal HWY over Maunawili Strm?

It is owned by the State Highway Agency.