Just a shout out that there are some innovative design opportunities for repairing and building trails anywhere. They combine Matireal™ out of Milwaukee Wisconsin with a Particular Wall™ out of Pittsburgh Pennsylvania. Both allow natural water flow through an open trail retaining wall and eco-active trail bedding — no erosion of track and reusing bike tires that were on their way to landfill!
If interested, check out the explanation at: [url:clciblun]http://www.kickstarter.com/projects/223710899/matirealtm-creational-trail-makes-it-to-pennsylvan[/url:clciblun]