Mamalahoa HWY over Keamuku Strm
FairHawaii County, Hawaii · 2.13MI S/Waikaloa · Structure no. 001001900502561
- Built
- 1940
- 85 years old
- Condition
- Fair
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 5,800
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Mamalahoa HWY over Keamuku Strm is a concrete slab carrying Mamalahoa HWY over Keamuku Strm in Hawaii 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 5,800 vehicles a day, roughly 10% of them trucks, projected to reach 5,524 by 2025. The structure is 23 ft (7.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
No coordinates are recorded for this structure.
Condition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mamalahoa HWY over Keamuku Strm built?
It was built in 1940, making it 85 years old in 2025.
What condition is Mamalahoa HWY over Keamuku 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 April 2024.
How much traffic does Mamalahoa HWY over Keamuku Strm carry?
About 5,800 vehicles per day (2017 count), of which roughly 10% are trucks.
How long is Mamalahoa HWY over Keamuku Strm?
The structure is 23 ft (7.1 m) long with a longest span of 22 ft (6.8 m) and a deck 34 ft wide.
Who owns Mamalahoa HWY over Keamuku Strm?
It is owned by the State Highway Agency.