US Bridges

Queen Kaahumanu H over Unmd Glh. Auwaiakeakua

Fair

Hawaii County, Hawaii · 20 99MI N/Keahole Air Acc · Structure no. 001000190302754

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
70 ft
4 main spans
Daily traffic
12,700
2019 count
Owner
State
State Highway Agency

About this bridge

Queen Kaahumanu H over Unmd Glh. Auwaiakeakua is a steel culvert carrying Queen Kaahumanu H over Unmd Glh. Auwaiakeakua in Hawaii 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 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 12,700 vehicles a day, roughly 6% of them trucks, projected to reach 13,710 by 2025. The structure is 70 ft (21.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesQueen Kaahumanu H
CrossesUnmd Glh. Auwaiakeakua
Location20 99MI N/Keahole Air Acc
RouteU.S. Route 19
CountyHawaii County
StateHawaii
Coordinates19.94948, -155.83098
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,700 (2019)
Projected traffic13,710 by 2025
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Queen Kaahumanu H over Unmd Glh. Auwaiakeakua built?

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

What condition is Queen Kaahumanu H over Unmd Glh. Auwaiakeakua 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 Queen Kaahumanu H over Unmd Glh. Auwaiakeakua carry?

About 12,700 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Queen Kaahumanu H over Unmd Glh. Auwaiakeakua?

The structure is 70 ft (21.3 m) long with a longest span of 15 ft (4.6 m).

Who owns Queen Kaahumanu H over Unmd Glh. Auwaiakeakua?

It is owned by the State Highway Agency.