Boise Foothills Trails Closed to Users After Heavy Rainfall Saturates Idaho Trails, Ridge to Rivers Warns
Boise, Idaho — Heavy spring rainfall has left Boise Foothills trails dangerously soft and muddy, prompting Ridge to Rivers to ask all trail users to stay off foothills paths — including all-weather trails — until conditions improve. With nearly an inch of rain accumulating in just 24 hours, the advisory affects the full network of trails that thousands of Ada County residents rely on for recreation.
Rainfall Prompts Urgent Trail Advisory Across Boise Foothills
As of 7 a.m. on Monday, April 13, Ridge to Rivers reported that close to one inch of rain had fallen across the Boise area in the preceding 24 hours. The sustained rainfall has saturated the soil throughout the foothills, leaving all trails — including those typically designated as all-weather routes — too soft for safe use.
Ridge to Rivers, the cooperative trail management program that oversees Boise’s extensive foothills trail system, issued an advisory urging the public to avoid all foothills trails until the ground has had adequate time to dry. The organization specifically noted that even trails engineered to handle wet conditions are currently compromised and should not be used.
When trails are used while wet and soft, the damage can be significant and long-lasting. Foot traffic, bicycle tires, and equestrian use all contribute to ruts, erosion, and trail degradation that requires costly repairs and extended closures. Ridge to Rivers asked that residents respect the advisory to help preserve the trail system for long-term public use.
Bogus Basin Trail Closures Postponed Amid Wet Conditions
The rainfall is also affecting planned maintenance work in the foothills. Scheduled daily trail closures in the Bogus Basin and Eastside areas, which had been set to begin Monday, April 13, have been postponed due to the wet conditions. Those closures are now expected to begin on April 27, with crews still anticipating they will conclude on June 19, as originally planned.
The delay reflects a practical decision by trail managers to avoid sending crews into unsafe terrain. For more background on those closures and the ongoing forest stewardship work in the area, see our earlier coverage of temporary public safety closures near Bogus Basin postponed to April 27 as forest stewardship work resumes.
Impact on Ada County Residents and Outdoor Recreation
The Boise Foothills trail system is one of Ada County’s most treasured public assets, drawing hikers, mountain bikers, and trail runners from across the Treasure Valley year-round. During the spring months in particular, the trails see heavy use as residents shake off winter and take advantage of warmer — if occasionally wet — weather.
For those still looking to get outside during the rainy stretch, Ridge to Rivers recommends the Boise Greenbelt as an alternative destination, along with other Boise city parks. The Greenbelt’s paved surface makes it a practical option during periods of heavy rain without risking damage to natural trail surfaces.
Trail users are also being asked to keep an eye out for sheep moving through the foothills next weekend. Ridge to Rivers reminded residents — particularly cyclists — to dismount and walk their bikes until the sheep have safely passed. The annual sheep movement is a longstanding tradition in the Boise Foothills and reflects the agricultural heritage of Ada County’s open lands.
What Comes Next: Monitoring Conditions and Planning Your Visit
Ridge to Rivers updates trail conditions regularly through its Interactive Trail Map, which provides real-time information on closures and surface conditions across the foothills network. Residents planning to visit the trails are encouraged to check that resource before heading out, particularly during and after periods of significant rainfall.
The Bogus Basin and Eastside area trail closures for forest stewardship work are now scheduled to begin April 27 and run through June 19. Trail users should plan accordingly and watch for updated signage in those areas as the start date approaches.
For Ada County commuters and residents keeping tabs on other infrastructure developments across the valley, Cole Road reconstruction near I-84 is set to begin mid-April, which may affect travel routes for those accessing south Boise and the surrounding area.
Residents with questions about trail conditions can visit the Ridge to Rivers website or follow the organization’s official communications for the latest updates on foothills access in the Boise area.