US Bridges

Kawaihae-Mahukona over Makeahua Strm

Good

Hawaii County, Hawaii · 0.19MI N/Spencer Pk RD · Structure no. 001000270300275

Built
1934
91 years old, rebuilt 1960
Condition
Good
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
60 ft
1 main span
Daily traffic
7,500
2017 count
Owner
State
State Highway Agency

About this bridge

Kawaihae-Mahukona over Makeahua Strm is a concrete continuous tee beam carrying Kawaihae-Mahukona over Makeahua Strm in Hawaii County, Hawaii. It was built in 1934 and reconstructed in 1960, so it is 91 years old, older 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 7,500 vehicles a day, roughly 9% of them trucks, projected to reach 6,828 by 2025. The structure is 60 ft (18.3 m) long and 37 ft wide. If it were closed, the detour would be 50.3 mi (81 km).

CarriesKawaihae-Mahukona
CrossesMakeahua Strm
Location0.19MI N/Spencer Pk RD
RouteU.S. Route 270
StateHawaii
Coordinates20.03012, -155.8213
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span53 ft (16.3 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2017)
Projected traffic6,828 by 2025
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed50.3 mi (81 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$349,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kawaihae-Mahukona over Makeahua Strm built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1960.

What condition is Kawaihae-Mahukona over Makeahua Strm 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 April 2024.

How much traffic does Kawaihae-Mahukona over Makeahua Strm carry?

About 7,500 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Kawaihae-Mahukona over Makeahua Strm?

The structure is 60 ft (18.3 m) long with a longest span of 53 ft (16.3 m) and a deck 37 ft wide.

Who owns Kawaihae-Mahukona over Makeahua Strm?

It is owned by the State Highway Agency.