US Bridges

H3 Bridge No. 4 Ob over N. Halawa Stream

Good

Honolulu County, Hawaii · 2.93 MI N Halawa Ic · Structure no. 003000H30200293

Built
1997
28 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
629 ft
5 main spans
Daily traffic
49,100
2017 count
Owner
State
State Highway Agency

About this bridge

H3 Bridge No. 4 Ob over N. Halawa Stream is a prestressed concrete continuous stringer/multi-beam or girder carrying H3 Bridge No. 4 Ob over N. Halawa Stream in Honolulu County, Hawaii. It was built in 1997, so it is 28 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 49,100 vehicles a day, projected to reach 54,950 by 2027. The structure is 629 ft (191.6 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesH3 Bridge No. 4 Ob
CrossesN. Halawa Stream
Location2.93 MI N Halawa Ic
RouteInterstate 0H3
CountyHonolulu County
StateHawaii
Coordinates21.39611, -157.88523
Functional classRural 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length629 ft (191.6 m)
Longest span140 ft (42.7 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,100 (2017)
Projected traffic54,950 by 2027
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was H3 Bridge No. 4 Ob over N. Halawa Stream built?

It was built in 1997, making it 28 years old in 2025.

What condition is H3 Bridge No. 4 Ob over N. Halawa 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 November 2023.

How much traffic does H3 Bridge No. 4 Ob over N. Halawa Stream carry?

About 49,100 vehicles per day (2017 count).

How long is H3 Bridge No. 4 Ob over N. Halawa Stream?

The structure is 629 ft (191.6 m) long with a longest span of 140 ft (42.7 m) and a deck 41 ft wide.

Who owns H3 Bridge No. 4 Ob over N. Halawa Stream?

It is owned by the State Highway Agency.