River stage
Grimes, Beaver Creek
- River level
- 6.68 ft
- Status
- Below flood stage
- 7-day change
- -1.97 ft
- Recent high
- 12.23 ft
- Recent low
- 2.95 ft
Last reported 2026-10-13 | NWS GRMI4
- 30-day change
- +2.10 ft
- Average
- 5.26 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 16.58 ft
In brief
The Beaver Creek at Grimes, IA read 6.68 ft on Oct 13, 2026, 4.32 ft below action stage. That is 2.10 ft higher than 30 days earlier.
Source: National Weather Service gauge GRMI4
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 16.58 ft | 1993-07-10 |
| 2 | 14.90 ft | 2010-08-11 |
| 3 | 14.73 ft | 1986-06-30 |
| 4 | 14.69 ft | 1974-05-19 |
| 5 | 14.59 ft | 2004-05-24 |
| 6 | 14.51 ft | 2008-06-01 |
| 7 | 14.22 ft | 2019-03-16 |
| 8 | 14.20 ft | 1990-06-19 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 9.00 ft
Beaver Creek goes out of its banks at the meanders just north of NW 62nd St.
- 10.00 ft
Water flows through the pedestrian underpass at NW 62nd St.
- 12.00 ft
The west river bank overflows just south of the NW 70th Ave bridge.
- 14.00 ft
Water affects Hwy R22 south of Iowa 141 as well as Hwy F31 west of Granger.
- 16.00 ft
Water affects the east approach of the NW 70th Ave bridge.
- 18.00 ft
Water reaches the bottom of the NW 70th Ave bridge deck.
- 22.40 ft
Water affects the low part of the west approach to the NW 70th Ave bridge.
- 23.00 ft
Water reaches the road surface of the NW 70th Ave bridge.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Beaver Creek flooding at Grimes?
No. The Beaver Creek at Grimes is at 6.68 ft, 4.32 ft below action stage.
What is the flood stage at Grimes?
The National Weather Service sets action stage 11 ft, minor flooding 14 ft, moderate flooding 16 ft and major flooding 17 ft.
What is the highest the Beaver Creek has been at Grimes?
The highest crest on record is 16.58 ft, on 1993-07-10.
Is the Beaver Creek high or low right now at Grimes?
At 6.68 ft it is higher than 75% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge GRMI4); daily history from the U.S. Geological Survey (site 05481950). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.