US Bridges

Sand Isl Road over Harbor Bridge No. 2

Fair

Honolulu County, Hawaii · .25 MI S/E of Keehi Hrb · Structure no. 003000640400149

Built
1987
38 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
670 ft
5 main spans
Daily traffic
12,800
2017 count
Owner
State
State Highway Agency

About this bridge

Sand Isl Road over Harbor Bridge No. 2 is a prestressed concrete stringer/multi-beam or girder carrying Sand Isl Road over Harbor Bridge No. 2 in Honolulu County, Hawaii. It was built in 1987, so it is 38 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 12,800 vehicles a day, roughly 18% of them trucks, projected to reach 18,281 by 2025. The structure is 670 ft (204.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSand Isl Road
CrossesHarbor Bridge No. 2
Location.25 MI S/E of Keehi Hrb
RouteU.S. Route 64
CountyHonolulu County
StateHawaii
Coordinates21.31429, -157.88807
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length670 ft (204.2 m)
Longest span160 ft (48.8 m)
Deck width45 ft (13.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,800 (2017)
Projected traffic18,281 by 2025
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sand Isl Road over Harbor Bridge No. 2 built?

It was built in 1987, making it 38 years old in 2025.

What condition is Sand Isl Road over Harbor Bridge No. 2 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 Sand Isl Road over Harbor Bridge No. 2 carry?

About 12,800 vehicles per day (2017 count), of which roughly 18% are trucks.

How long is Sand Isl Road over Harbor Bridge No. 2?

The structure is 670 ft (204.2 m) long with a longest span of 160 ft (48.8 m) and a deck 45 ft wide.

Who owns Sand Isl Road over Harbor Bridge No. 2?

It is owned by the State Highway Agency.