US Bridges

Kaahumanu St. over Austin Bishop SEP-FAI-H1

Fair

Honolulu County, Hawaii · 0.65MI E/Kam HWY · Structure no. 003000H11101095

Built
1971
54 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
201 ft
2 main spans
Daily traffic
23,000
2007 count
Owner
State
State Highway Agency

About this bridge

Kaahumanu St. over Austin Bishop SEP-FAI-H1 is a concrete continuous box beam or girders - multiple carrying Kaahumanu St. over Austin Bishop SEP-FAI-H1 in Honolulu County, Hawaii. It was built in 1971, so it is 54 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 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 23,000 vehicles a day, projected to reach 27,500 by 2025. The structure is 201 ft (61.3 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKaahumanu St.
CrossesAustin Bishop SEP-FAI-H1
Location0.65MI E/Kam HWY
RouteCity Street 0
CountyHonolulu County
StateHawaii
Coordinates21.39273, -157.95312
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length201 ft (61.3 m)
Longest span100 ft (30.5 m)
Deck width76 ft (23.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2007)
Projected traffic27,500 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo
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$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kaahumanu St. over Austin Bishop SEP-FAI-H1 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Kaahumanu St. over Austin Bishop SEP-FAI-H1 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 2025.

How much traffic does Kaahumanu St. over Austin Bishop SEP-FAI-H1 carry?

About 23,000 vehicles per day (2007 count).

How long is Kaahumanu St. over Austin Bishop SEP-FAI-H1?

The structure is 201 ft (61.3 m) long with a longest span of 100 ft (30.5 m) and a deck 76 ft wide.

Who owns Kaahumanu St. over Austin Bishop SEP-FAI-H1?

It is owned by the State Highway Agency.