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February 24, 2014 C- 1981 - 041 /Roadside Portals MPB <br />channel is designed to the 100 -yr, 24 -hour precipitation event for that locale. The design includes two upper <br />sections requiring riprap. Section 1 has a design slope of 0.075 and d50 riprap = 10.2 inch (12 inch required ), and <br />Section 2 has a design slope of 0.025 and d50 riprap = 4.1 inch (6 inch required). These sections were inspected <br />to verify the riprap size and location and an inclinometer was used to field verify the slopes. The riprap size is <br />larger than required in both sections and the slopes were verified as follows: Section 1 — 8% (Photograph No. 4) <br />and Section 2 — 2% (Photograph No. 5) which closely matches the design. The lower portion of the permanent <br />channel is void of vegetation, with exception of a significant Tamarisk infestation (see Photograph No. 6). The <br />designs for the East and West Diversion ditches and the North Decline Permeent Channel are given in Volume III <br />of the PAP on pages NDEC -4 through NDEC -13. All of these permanent drainage channel features are shown on <br />Exhibit 12C of the PAP. Reclaimed Pond 7 is stable with no ersosion or instabilitv but lacks desireable <br />vegetative cover (see Photograph No. 7). <br />DOCUMENTS RECEIVED <br />None <br />OTHER (SPECIFY) <br />Number of Partial Inspection this Fiscal Year: 6 <br />Number of Complete Inspections this Fiscal Year: 2 <br />Page 3 of 6 <br />