Mamalahoa HWY over Kamakoa Strm #2
GoodHawaii County, Hawaii · 1.35MI S/Saddle RD Junct · Structure no. 001001900503111
- Built
- 1930
- 95 years old, rebuilt 1980
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Steel
- Length
- 36 ft
- 3 main spans
- Daily traffic
- 5,900
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Mamalahoa HWY over Kamakoa Strm #2 is a steel culvert carrying Mamalahoa HWY over Kamakoa Strm #2 in Hawaii County, Hawaii. It was built in 1930 and reconstructed in 1980, so it is 95 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 5,900 vehicles a day, roughly 8% of them trucks, projected to reach 5,524 by 2025. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mamalahoa HWY over Kamakoa Strm #2 built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1980.
What condition is Mamalahoa HWY over Kamakoa Strm #2 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 Mamalahoa HWY over Kamakoa Strm #2 carry?
About 5,900 vehicles per day (2017 count), of which roughly 8% are trucks.
How long is Mamalahoa HWY over Kamakoa Strm #2?
The structure is 36 ft (11.1 m) long with a longest span of 11 ft (3.5 m).
Who owns Mamalahoa HWY over Kamakoa Strm #2?
It is owned by the State Highway Agency.