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Cass River in Michigan

River61.2 mi
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Around here

Around Cass River

10 mi

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
Typical flow by month at Cass River at Frankenmuth, MI, in cfs
MonthTypical (cfs)Usual range (cfs)
January252136 to 534
February265148 to 577
March1,020555 to 1,940
April794456 to 1,300
May421249 to 770
June185114 to 379
July9663 to 176
August7450 to 123
September6945 to 125
October8453 to 209
November17493 to 375
December230123 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.

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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.

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