River Levels - Johnson's Shut-Ins

The following flag system is designed to inform visitors of the water level that is flowing through the shut-ins and access to the area for swimming/wading activities. The water level is monitored by a river gauge. River flow is measured by cubic feet per second, or cfs.

Red Flag (75 cfs and higher)
River Flow At High Hazard Level: Shut-ins access gates are closed.

Yellow Flag (26-74 cfs)
River Flow At Medium Hazard Level: Shut-ins access gates are open.

Green Flag (25 cfs and lower)
River Flow At Low Hazard: Shut-ins access gates are open.

Shut-Ins Conditions Information

• Flags and signage are located at the Black River Center, the campground entrance and the shut-ins parking lot.  
• River levels can be found online at: waterdata.usgs.gov/monitoring-location/07061270/#parameterCode=00060&period=P7D&showMedian=true.
• Absence of flags does not assure safe waters. Always exercise caution when swimming or wading.
• Personal flotation devices are recommended for swimming/wading.