US Bridges

Ramp Hiwb 13B over Halawa Strm Hic #12

Good

Honolulu County, Hawaii · 0.76MI Se/Struct #1 · Structure no. 003000H30200087

Built
1974
51 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
171 ft
2 main spans
Daily traffic
49,100
2017 count
Owner
State
State Highway Agency

About this bridge

Ramp Hiwb 13B over Halawa Strm Hic #12 is a prestressed concrete continuous stringer/multi-beam or girder carrying Ramp Hiwb 13B over Halawa Strm Hic #12 in Honolulu County, Hawaii. It was built in 1974, so it is 51 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, roughly 5% of them trucks, projected to reach 45,220 by 2025. The structure is 171 ft (52.1 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp Hiwb 13B
CrossesHalawa Strm Hic #12
Location0.76MI Se/Struct #1
RouteInterstate 0H3
StateHawaii
Coordinates21.36999, -157.92088
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating71.1 US tons
Inventory rating48.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span82 ft (25 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,100 (2017)
Projected traffic45,220 by 2025
Trucks5%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp Hiwb 13B over Halawa Strm Hic #12 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ramp Hiwb 13B over Halawa Strm Hic #12 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 March 2023.

How much traffic does Ramp Hiwb 13B over Halawa Strm Hic #12 carry?

About 49,100 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Ramp Hiwb 13B over Halawa Strm Hic #12?

The structure is 171 ft (52.1 m) long with a longest span of 82 ft (25 m) and a deck 56 ft wide.

Who owns Ramp Hiwb 13B over Halawa Strm Hic #12?

It is owned by the State Highway Agency.