Public notice · Mercy County Sheriff’s Office and Road Department
Driving advisory: Black Ridge Flats
Record no. MC-ADV-BRF Posted 08/03 Active after dark
Drivers are asked to remain on marked roads when crossing the flats north of Black Ridge.
Record details
- Area
- Flats north of Black Ridge
- Hazards
- Soft ground, standing water, poor distance judgment
- Applies
- After dark and following rain
- Road status
- Marked causeway remains open
Advisory
Standing water can hide soft salt mud beyond the raised road edge. A vehicle that leaves the marked causeway may be visible for a long distance and still be difficult to reach.
Reports of moving lights over the flats do not mark a road, residence, or staffed recovery point. Some reports have matched vehicles or work crews. Others have not been verified.
If stranded
- Keep the vehicle on firm ground when possible.
- Use hazard lights if electrical power remains.
- Do not walk toward an unconfirmed light source.
Archive handling note
- Source
- Joint public-driving advisory
- Medium
- County notice and KRD-7 public-service copy
- Record date
- Posted 08/03
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