Big Creek Marina
About
Gallery
Operator details
- Vessels
- Powerboat
Boat launches near Big Creek Marina
Loads the full map of the boat launches near this listing. We leave it off by default so the page opens fast on mobile data.
Typical flow by month
1961 to 2026
The water at Big Creek Marina typically runs highest in June, at a median 320 cfs, and lowest in September, at 14 cfs. The highest flow on record for any single day is 11,500 cfs, in 1993.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 31 | 7.2 to 95 | |
| February | 37 | 17 to 111 | |
| March | 202 | 82 to 411 | |
| April | 227 | 92 to 473 | |
| May | 317 | 152 to 587 | |
| June | 320 | 141 to 600 | |
| July | 119 | 44 to 347 | |
| August | 33 | 10 to 110 | |
| September | 14 | 3.9 to 72 | |
| October | 19 | 4.0 to 141 | |
| November | 51 | 9.2 to 172 | |
| December | 42 | 9.4 to 142 |
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 66 years of record. Statistics published by the US Geological Survey for Beaver Creek near Grimes, IA (site 05481950). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
703 cfs
Much above normal (94th)
Water level
5.91 ft
High today
57°F
Wind
10 kt
Gusts 23 kt
Rain chance
18%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
More charters in Iowa
Also nearby
Other ways to get outside within about an hour of here.
Free tools
Your free outdoor toolkit
Everything Map
Listings, trails, spots, clubs and public land on a single full-screen map. Switch layers on and off, then tap any point for the details.
Open Everything MapRiver Explorer
Explore named rivers from the USGS hydrography dataset. Filter by water type or whitewater class.
Open River ExplorerBoat Launches
Find public boat ramps and hand-launches on a map, with the access details that matter.
Open Boat LaunchesRoute Planner
Drop stops on a map and watch distance and drive time add up. Export a GPX or share the link.
Open Route PlannerBoat Clubs
Browse local clubs with meeting info and how to join, or start your own for free.
Open Boat ClubsLive Conditions
Real-time conditions spot by spot, pulled from public weather feeds, before you commit to the drive.
Open Live Conditions
