2021-10-29_PERMIT FILE - M2021064 (6)

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f. Include an analysis of all reasonable alternatives, including no direct highway access or restricted access such as right in/right out (RI/RO) or% movements. No reasonable alternatives were identified. g. County has no traffic count. Above count for CR-600 is conservatively based on assuming that 100% of difference in traffic between the two CDOT data points is using CR-600. 10. Discussion of Highway Improvements/Actions Based on preliminary reconnaissance and traffic analysis, there are no specific highway improvements required by the county or state access code and related requirements for the intersection of FSR-650 with CR-600 or CR-600 itself. Traffic generated by sand and gravel operations using the access do not warrant improvements based on the schedule and traffic volumes based on production as permitted on the properties served by the access. However, care should be taken to ensure that traffic is metered into and out of the access at all times, to ensure that left turns into or out of the access do not exceed 10 during peak hours and therefore create a potential safety hazard, and traffic flow data kept to demonstrate compliance with limits. 11. Capacity and Level of Service (LOS)Analysis Based on the small amount of traffic generated and the relatively low ADT for the study area, it is requested that formal analysis of Capacity and LOS be waived for CR-600/FSR-650. This analysis will be included in the Level III study for the intersection of CR-600 and SH-160. 12. Traffic Signal Analysis Based on the complete absence of traffic signals within five miles, the small amount of traffic generated and the relatively low ADT for the study area, it is requested that formal analysis of Capacity and LOS be waived for the CR-600/FSR-650 intersection. 13. CDOT/County Access Permitting Considerations Forecasting is based on current permits applied for or issued by Colorado Division of Reclamation, Mining, and Safety (for mining), Colorado Air Pollution Control Division (for mining and gas production), and Archuleta County (conditional use). These permits have various conditions and limits and generally require annual reporting and periodic renewals. Changes in limits and conditions will require coordination between the permitees and CDOT as well as the other permitting agencies. Refer to Access Plan. • Consider requiring operator to maintain a log of traffic and submit reports quarterly to Archuleta County Road Supervisor and CDOT Region 5 Access Control to demonstrate compliance. Also consider requiring metering of traffic to no more than one vehicle of 30 feet or greater length exiting every five minutes, including peak hours, and requiring companies using site to prohibit "platooning" by their drivers (more than two vehicles traveling closer than sixty seconds spacing inbound or outbound). Based on anticipated distribution of traffic (10% N, 90% S), this will provide spacing of trucks on CR-600 of one every 7.5 minutes (approximately four miles) S and no restriction for northbound traffic except delay by metering of left-turning southbound traffic. • Consider requiring placement of permanent standard "Intersection Left/Right" warning diamond signs with "Trucks Entering" placards in both directions, with recommended speed placards for 35 mph. • If there is significant potential during a major contract requiring large amounts of construction material (CDOT, County or USFS)for exceeding 10 left-turn entry or exit movements during peak hours (3 multi-unit trucks in or out), consider requiring a flagger be used in accordance with a Method of Handling Traffic (MHT) during peak hours, mandating scheduling traffic during off-peak hours as part of the purchase contract. C&J Gravel Products, Inc. Page 72 of 93 20 OCT 2021 Application for Permit: Oakbrush Hill Gravel M-2021- C&J-DPR-V5-001