River Junction Access will be closed to vehicular traffic on Thursday, April 16, 2026, due to rising river levels and potential flooding. Staff will evaluate river levels again on Monday, April 20, 2026. Please continue to monitor the Johnson County webpage for additional updates. 

Flash flooding can escalate quickly. Never enter floodwaters in a vehicle or on foot.  Stay aware of public safety-related resources and announcements by downloading the new Johnson County Emergency Management Agency's (EMA), JoCo Ready app from the Apple Store or Google Play Store.