[ROBERTS TUNNEL AT EAST PORTAL NEAR GRANT]
Formula
Current reading
309 CFS
Read 3 minutes ago · Aug 26, 2026 11:31 PM UTC
Flow history — last 6 days
No readings recorded in the last 6 days.
How this reading is computed
This is a virtual gauge: its reading is calculated from other gauges with the flow formula below (readings can lag the source gauges by up to 15 minutes).
[ROBERTS TUNNEL AT EAST PORTAL NEAR GRANT]
| Source gauge | Current reading |
|---|---|
| ROBERTS TUNNEL AT EAST PORTAL NEAR GRANT | 309 CFS |
Current computed value: 309 CFS
Runs on this gauge
- Bailey Canyon on South Platte River, North Fork alternate gauge