I. Site Assessment, Preparation A. Contractor shall verify lot dimensions and scope of work during a scheduled in-person pre-bid jobwalk at Ft Morgan Station. Contractor shall be responsible for obtaining all necessary information to generate proposal that meets scope, maintains compliance, and conforms with applicable local, state, federal, and industry rules and regulations. At a minimum, new lot improvements shall comply and meet CDOT requirements. B. Contractor shall be licensed to perform work in the State of Colorado as applicable. Contractor shall obtain permits as necessary and include these costs into the cost proposal. C. Contractor shall schedule, manage, and perform all locate work. Contractor shall be responsible to complete locate work prior to the start of any physical work. D. Contractor shall be responsible to source a local tow company and relocate vehicles during the work period. Contractor shall assume the cost of relocation as part of their cost proposal. Assume up to ten (10) vehicles for the cost of relocation. Vehicles shall be documented by both the tow company and contractor with photo or video before and after tow relocation. Vehicles shall be relocated outside of the work area but proximate to the station. Upon completion of the physical work, any vehicle relocated shall be placed back into the new gravel parking lot by tow company. All documented vehicles shall be shared with Amtrak through an Amtrak sharepoint folder or by a construction management software that Amtrak personnel may access. Amtrak shall issue customer notifications beginning up to two (2) weeks prior to the start of physical work to minimize the number of vehicles on site. E. Contractor shall take necessary precautions to guard workers from pests and insects while on the job site. F. The work site, approximately 25,000 square feet, shall be prepped by clearing all existing gravel, pushing aggregate away from the project work site. The work area shall be cleared of any standing water caused by existing ponding. The existing aggregate shall be removed and hauled away in order to accommodate the new (sub)layers of the new gravel parking lot. G. New gravel lot shall maintain level transitions to the existing platform and ADA concrete parking pad. New gravel lot shall be sloped away from the platform and tracks so to permit water to drain towards the trees in the middle of the lot where inlets exist. H. Shoulder or ditch drainage shall be sufficient to properly drain into the median storm inlets near the trees. I. Prep median by resetting or rebed vertical posts to upright positions along the median and adjacent to Main Street. Install new vertical posts to match existing to block southern line of median and protect inlets. Clean, prep, prime posts to receive new protective coatings. J. Reset and restore existing horizontal bars between vertical posts for the median and Main Street. Fabricate and install new horizontal bars to match existing. Clean, prep, prime all bars to receive new protective coatings. K. Apply new protective coatings (minimum 2 coats) to posts and bars. L. Pressure wash clean or blast clean existing ADA concrete pad surface to receive new ADA/DOTAS compliant line markings. Using non-water based marking products, apply minimum two (2) coats of line marking to match existing pattern for ADA compliant parking spaces. M. Trim trees as necessary to ensure a safe environment for lot users. II. New Gravel Lot Installation A. Contractor shall submit all shop drawings, material and aggregate mix sheets, and method of application prior to the start of any work for Amtrak review but after notice of award, at a minimum. Contractor shall be responsible to ensure gravel improvements meet or exceed industry and state requirements. B. All aggregate material shall be free of vegetation and other deleterious substances. All aggregate material shall conform with ASTM standards, as applicable, and CDOT standards. C. Consideration of appropriate mix of stone, sand, and fines shall be made for the surface gravel level. This level of aggregate must be able to support up to thirteen (13) tons in gross weight for medium duty framed tanker trucks traversing across the work site. Additionally, the surface level must provide sufficient permeation to permit water runoff and drainage to occur in the subsurface levels. D. The surface level gravel shall also have an appropriate mix to incorporate plasticity (Atterberg Limits) in order to plan for sufficient compacting. E. Excessive care must be taken to leave a uniform depth of well-blended material to become the gravel surface for vehicles. F. Where possible, the use of water and rollers for compaction shall be considered. G. Dust abatement and stabilizing products shall be considered to maximize customer satisfaction, longevity of the access road, and potential reduction of maintenance needs over the long term. H. Contractor shall procure and install wood-based wheel stops to be installed at the southern line of the lot, with the wheel stops parallel to the tracks. Wheel stops shall be 9 feet in length. Using the east edge of the concrete ADA parking pad, contractor shall install the first wheel stop two (2) feet past the concrete pad edge. Subsequent wheel stops shall be spaced with two (2) feet between them. A total of sixteen (16) wheel stops shall be installed. Wheel stops shall be approximately four (4) to five (5) from the platform edge closest to the parking lot.
