Around here
Around Cass River
Public land: USGS PAD-US
About this river
Cass River is a 61.2 mile river. Streamflow is measured at the USGS gauge Cass River at Frankenmuth, MI (site 04151500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1908 to 2026
Cass River typically runs highest in March, at a median 1,020 cfs, and lowest in September, at 69 cfs. The highest flow on record for any single day is 21,700 cfs, in 1986.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 252 | 136 to 534 |
| February | 265 | 148 to 577 |
| March | 1,020 | 555 to 1,940 |
| April | 794 | 456 to 1,300 |
| May | 421 | 249 to 770 |
| June | 185 | 114 to 379 |
| July | 96 | 63 to 176 |
| August | 74 | 50 to 123 |
| September | 69 | 45 to 125 |
| October | 84 | 53 to 209 |
| November | 174 | 93 to 375 |
| December | 230 | 123 to 520 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 89 years of record. Statistics published by the US Geological Survey for Cass River at Frankenmuth, MI (site 04151500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Cass River. Ramp data comes from the USGS national boat-ramp inventory.
- E Road BridgeCass RiverPublic
- Wickes ParkSaginaw RiverPublic
- The Saginaw Marina, Inc.Saginaw RIverRestricted
- Lee StreetSaginaw RiverPublic
- Zilwaukee Riverfront ParkSaginaw RIverPublic
- HIghway 24 BridgeCass RiverPublic
- CrowIsland State Game Area (South)Saginaw RiverPublic
- Crow Island State Game Area (North)Saginaw RiverPublic
Made to print
Put Cass River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Cass River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.






