filed under: surfacing
Finely crushed rock (crusher fines) is a useful alternative to paving trails that accommodates most trail activities.
Top quality crusher fines trail along the Highline Canal in Cherry Hills Village, CO; photo by Stuart Macdonald
Crusher fines is a finely-crushed stone mix that is often the byproduct of gravel operations. Crushed stone trails provide a user-friendly, all-season surface for all types and ages of visitors, including strollers, wheelchairs, and road bikes. If built properly crushed stone trails can meet the specification for a "firm and stable" surface as defined in current federal guidelines for accessible trails.
Best Practices:
The Art of Building Crushed Stone Trails
Crushed stone trails provide a user-friendly, all-season surface for all types and ages of visitors, including strollers, wheelchairs, and road bikes.
What You Need to Know About Building Trails with Crusher Fines
A crusher fine trail combines the rustic feeling of a natural surface trail with a surface type that's durable (but not concrete or asphalt). The natural gravel-like surface feels more like a trail than a hard surfaced path and fits in well with primitive settings.
Rio Grande Trail Corridor Study: Trail Surfacing Report
This report sorts through the various choices for the most "economical and sustainable" types of trail surfacing options along the proposed Rio Grande Trail corridor from Belen to Sunland Park, New Mexico.
Typical crusher fines surface showing very firm matrix with only a few loose larger rock particles.
Water running down the slope gathers on the crusher fines trail because of insufficient cross slope of the trail.
A better crusher fines trail in the same Bluff Lake Nature Area, Denver
Here the edging keeps water from draining so obstacles in the form of drainage bars were placed to try to keep the crushed rock from eroding.
Horses, bikes, and walkers all use the crusher fines Highline Canal Trail near Denver, CO.
Top quality crusher fines trail along the Highline Canal in Cherry Hills Village, CO.
The fabric used under the crusher fines is exposed because of insufficient depth of material; Big Dry Creek Nature Trail, Westminster, CO
Crusher fines trail built up to form a bench; Lomaki Wupatki National Monument, AZ
Crusher fines will eventually dry smooth once snowmelt stops; Adams County, Colorado, park.
Crusher fines trail lined with native rock; Lomaki Wupatki National Monument, AZ.
A fine grained, dark crusher rock is the surface for trail at Westerly Creek Dam, Denver.
Crushed rock that is larger and looser than ideal; Bluff Lake Nature Area, Denver.
The plank edging is supposed to keep the crusher fines in place; Big Dry Creek Nature Trail, Westminster, CO.
Trail climbs at a low angle up the face of Westerly Creek Dam, Denver.
Crusher fines trail on top of the Westerly Creek Dam, Denver.
The landscape fabric is exposed in this Philadelphia park due to runoff: the trail runs straight down the slope.
Published March 2019
Improving the Sustainability of the Appalachian Trail
The Appalachian National Scenic Trail (A.T.) is a unique internationally recognized protected natural area encompassing more than 250,000 acres and a 2,190-mile footpath from Maine to Georgia.
This research investigates horse trail impacts to gain an improved understanding of the relationship between various levels of horse use, horse trail management alternatives, and subsequent horse trail degradation.
2021 NRT Photo Contest Winners Announced
The results are in! Here are our picks from the 466 photos submitted for the 2021 photo contest.
Pennsylvania Trail Design & Development Principles
A compilation of best practices and guidelines for the planning, design, construction, and management of your trail employing sustainable design.
