More resources may be found on the web:
Colorado DOT Home Page
2019 Specifications Book Section 700 (Geotextiles 712.08)
State QPL information:
NY State Materials Approved List - Geosynthetics (Used by CDOT)
• The above information is to be used only as a guide.
• Products on the above list can change without notice.
US Fabrics is proud to serve the geotextile needs of the State of Colorado including:Denver, Colorado Springs, Aurora, Fort Collins, Lakewood, Thornton, Pueblo, Arvada, Westminster, Centennial, Boulder, Highlands Ranch, Greeley, Longmont, Loveland, Grand Junction, Broomfield, Castle Rock, Commerce City, Parker, Littleton, Northglenn, Brighton, Security-Widefield, Ken Caryl, Dakota Ridge, Englewood, Wheat Ridge, Pueblo West, Fountain, Lafayette, Columbine, Clifton, Montrose, Golden, Windsor, Evans, Louisville, Sherrelwood, Erie, Durango, Canon City, Cimarron Hills and all other areas of Colorado.