River stage
Portland, Grand River
- River level
- 5.82 ft
- Status
- Below flood stage
- 7-day change
- -0.52 ft
- Recent high
- 7.12 ft
- Recent low
- 5.20 ft
Last reported 2026-10-13 | NWS PORM4
- 30-day change
- -0.47 ft
- Average
- 5.89 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 12.98 ft
In brief
The Grand River at Portland, MI read 5.82 ft on Oct 13, 2026, 5.18 ft below action stage. That is 0.47 ft lower than 30 days earlier.
Source: National Weather Service gauge PORM4
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 12.98 ft | 1975-04-21 |
| 2 | 12.84 ft | 2004-05-24 |
| 3 | 12.62 ft | 2018-02-23 |
| 4 | 12.45 ft | 2019-02-27 |
| 5 | 12.21 ft | 2023-04-06 |
| 6 | 12.05 ft | 1982-03-17 |
| 7 | 11.57 ft | 1968-06-30 |
| 8 | 11.56 ft | 1960-03-31 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 11.00 ft
River is bankfull. Expect minor flooding of low areas along the river upstream and downstream of Portland.
- 12.00 ft
Expect minor flooding in the Village of Lyons and low lying areas adjacent to the river. Two Rivers Park in Portland flooded.
- 14.00 ft
Expect moderate flooding of the first floor of residences and businesses in the south section of the Village of Lyons. Elizabeth, Superior, and Railroad Streets in the Village of Lyons closed due to flooding.
- 16.00 ft
Expect major flooding of the business district and residential areas in the Village of Lyons and basement flooding of residences on the west side of Kent Street in Portland.
Written by the local National Weather Service forecast office for this exact gauge.
Trout stocking on the Grand River
Michigan DNR stocked the Grand River 4 times in 2026, 1,732,099 fish in total. Rainbow trout and Walleye at 18.7 and 0.3. Michigan DNR's published figures for 2026, the most recent season it has confirmed, record 32,099 trout actually released here across 4 visits.
| Species | Fish | When |
|---|---|---|
| Rainbow trout | 23,978 | April 2026 |
| Walleye | 850,000 | April 2026 |
| Walleye | 850,000 | April 2026 |
| Rainbow trout | 8,121 | April 2026 |
Michigan DNR lists a week or a month rather than a date, and counts fish as an estimate. Full Michigan stocking schedule →
Frequently asked questions
Is the Grand River flooding at Portland?
No. The Grand River at Portland is at 5.82 ft, 5.18 ft below action stage.
What is the flood stage at Portland?
The National Weather Service sets action stage 11 ft, minor flooding 12 ft, moderate flooding 14 ft and major flooding 16 ft.
What is the highest the Grand River has been at Portland?
The highest crest on record is 12.98 ft, on 1975-04-21.
Is the Grand River high or low right now at Portland?
At 5.82 ft it is higher than 49% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge PORM4); daily history from the U.S. Geological Survey (site 04114000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.