Hawaii Belt Road over Makakupu Stream
Hawaii County, Hawaii · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hawaii Belt Road over Makakupu Stream in Hawaii County, Hawaii, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2001, making it 24 years old at the 2025 inventory.
- It carries about 2,036 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 100 of the 231 inventoried bridges in Hawaii County rated good (43.3%); 8 (3.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (19.22889, -155.45692)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 122 ft |
| Location | 2.24 Mi N.kamani St. |
| NBI structure number | 001000110307348 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Hawaii department of transportation.
Busiest bridges in Hawaii County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Hawaii Belt Rd over Panaewa Strm | 1950 | 35,200 | Fair |
| Keeau-pahoa Hwy over Waipahoehoe Strm | 1968 | 26,700 | Good |
| Route 11 over Unmd Glh | 1984 | 25,900 | Good |
| Route 11 over Unmd Glh | 1984 | 25,400 | Good |
| Hi Blt Rd Palani R over Unmd Glh Tpl Mtl Culvt | 1984 | 25,400 | Good |
| Route 11 over Unmd Glh | 1984 | 25,400 | Good |
All bridges nearby: Hawaii County, HI bridge conditions · every bridge in Hawaii County · Hawaii bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.