US Bridges

Farr HWY over Kapalaau Strm

Fair

Honolulu County, Hawaii · 0.29MI S/Hoomana Pl · Structure no. 003009300501414

Built
1940
85 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
2,400
2017 count
Owner
State
State Highway Agency

About this bridge

Farr HWY over Kapalaau Strm is a concrete continuous slab carrying Farr HWY over Kapalaau Strm in Honolulu County, Hawaii. It was built in 1940, so it is 85 years old, older 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 6 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 2,400 vehicles a day, roughly 10% of them trucks, projected to reach 4,743 by 2025. The structure is 66 ft (20.2 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesFarr HWY
CrossesKapalaau Strm
Location0.29MI S/Hoomana Pl
RouteU.S. Route 930
CountyHonolulu County
StateHawaii
Coordinates21.57789, -158.17024
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating25.7 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length66 ft (20.2 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2017)
Projected traffic4,743 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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$2.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Farr HWY over Kapalaau Strm built?

It was built in 1940, making it 85 years old in 2025.

What condition is Farr HWY over Kapalaau Strm 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 May 2024.

How much traffic does Farr HWY over Kapalaau Strm carry?

About 2,400 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Farr HWY over Kapalaau Strm?

The structure is 66 ft (20.2 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Farr HWY over Kapalaau Strm?

It is owned by the State Highway Agency.