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ORDINANCE 2012- 012 3. The minimum gradable haul route width shall be twenty-four (24) feet, unless reduced by the Public Works Director for haul route segments not used by the general public. 4. Where unpaved haul routes or haul route segments are allowed and the anticipated project haul truck traffic from the proposed mine and approved mines sharing the same haul route segment(s) exceed an average of five hundred (500) truck trip ends per day [as defined in section (4)(f) below], the unpaved haul route segment(s) shall be improved and maintained to the following standards: a. Minimum sub -base of twelve (12) inches and twelve (12) inches of suitable road base material (material such as coquina or structural equivalent approved by the Public Works Director or his designee that can meet the compaction standard below) shall be provided for the duration of the mining project. b. Road material shall be suitably compacted to meet LBR (load bearing ratio) 100 standards. C. The minimum gradable haul route width shall be twenty-four (24) feet. (f) Haul routes or haul route segments shall be paved if the anticipated project haul truck traffic from the proposed mine and approved mines sharing the same haul route segment(s) exceed an average of seven hundred fifty (750) truck trip ends per day. (Truck trip ends are one -directional. For example, one (1) truck entering the mine = one (1) trip end; the same truck leaving the mine = a second trip end.) Applicants may enter into a developer's agreement to equitably share or recoup paving costs. 1. Paved haul routes shall meet the following specifications: a. Minimum pavement width shall be twenty-four (24) feet, unless reduced by the Public Works Director for haul route segments not used by the general public. b. Pavement thickness base and sub -base depths shall meet county thoroughfare and truck route specifications, including ESAL (equivalent single axle loads) and pavement strength coefficients. (g) The county's adopted level of service (LOS) for the project haul route and intersections significantly impacted by project truck traffic shall be evaluated using passenger car equivalents (PCEs) for anticipated haul truck traffic based on Institute of Transportation Engineers (ITE) standards for PCEs. (For example, a PCE of 2.3 passenger cars per haul truck would be used to evaluate the LOS for the project haul route and intersections impacted by the project.) Such evaluation shall use average daily haul truck traffic plus a fifteen (15) percent peaking factor. Where a haul route segment(s) is shared by more than one (1) mining operation, haul truck traffic from all the mining operations shall be used in the LOS evaluation. Bold Underline: Additions to Ordinance 2 Stril(O through: Deleted Text from Existing Ordinance F:\Community Development\Users\CurDev\Ordinanccs\2012\Cairns934.doc