NEW, PMAA, St. Vrain SP - South Campground Paving

Colorado Parks and Wildlife is requesting bids on South Campground paving improvements at St. Vrain State Park near Longmont, Colorado under an Invitation for Bid, with proposals due September 10, 2026.

The scope encompasses approximately 30,000 square yards of asphalt pavement and gravel surfacing for existing roads, campground loops, individual campground spots, and parking areas designed to accommodate Class A RVs weighing approximately 50,000 pounds. The geotechnical engineering report (prepared by Kumar & Associates, Inc.) specifies pavement design options: full-depth asphalt of 6.0 inches for light duty or 7.0 inches for heavy duty, or composite asphalt/aggregate base course sections of 4.0/7.0 inches and 4.5/8.0 inches respectively. All pavements must be placed on a minimum of 2 feet of on-site soil compacted to 95 percent of standard Proctor maximum dry density. The report identifies subsurface conditions across ten exploratory borings, with soil layers consisting of gravel surfacing underlain by man-placed fill and naturally deposited granular soils extending to depths of 5 to 10 feet, and groundwater encountered in one location at approximately 6 feet below surface. Water-soluble sulfate concentration is 0.00 percent, eliminating the requirement for special sulfate-resistant cement. Construction work requires careful surface drainage design, subgrade proof-rolling prior to pavement placement, and full-time construction observation and testing services to ensure compliance with pavement design recommendations.

Bid documents include detailed paving construction drawings, geotechnical appendices, and technical specifications. The report recommends retention of Kumar & Associates, Inc. for plan and specification review. Place of performance is St. Vrain State Park, 3785 Weld County Road 24, Longmont, Colorado.