Range Road over Kaukonahua Stream
Honolulu County, Hawaii · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Range Road over Kaukonahua Stream in Honolulu County, Hawaii, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1986, making it 39 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2015).
- It is one of 364 of the 676 inventoried bridges in Honolulu County rated fair (53.8%); 40 (5.9%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2019, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (21.48834, -157.9856)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 120 ft |
| Location | Tunnel Entrance |
| NBI structure number | DAPPACSCH00B005 |
| Condition class | Fair |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | March 2019 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Hawaii department of transportation.
Busiest bridges in Honolulu County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai-h1 over 3-162" Sectl Pl Culvt | 1970 | 247,700 | Good |
| Fai-h1 over 2-180in Sectl Pl Culvt | 1970 | 247,700 | Good |
| Fai-h1 over Aiea Strm 15x12 Twn Culv | 1970 | 247,700 | Good |
| Fai-h1 over Waimalu Via-strm/hwy | 1970 | 244,000 | Fair |
| Fai-h1 over Pearl City Viaduct | 1969 | 231,700 | Fair |
| Fai-h1 over Waiau Ic-moanalua Rd | 1970 | 202,900 | Fair |
All bridges nearby: Honolulu County, HI bridge conditions · every bridge in Honolulu County · Hawaii bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.