Combined Construction Inc. 7/22/2020

1 An application of fine compost shall be applied during cultivation of restored lawn 2 area in staging area after conclusion of staging use, 2" depth compost cultivated ' 3 into soil surface and fine graded as a growing medium for hydroseed. 4 5 No cultivation shall occur in areas within the root protection zone of existing ' 6 vegetation scheduled to remain. 7 8 8-02.3(10).DOCX ' 9 10 Lawn Installation 11 8-02.3(10)B.DOCX ' 12 Lawn Seeding and Sodding 13 14 8-02.3(10)B.INST1.DOCX 15 Section 8-02.3(10)B is supplemented with the following: 16 17 8-02.3(10)B.OPT1.DOCX ' 18 (******) 19 The seed mixture and rate of application must be as follows: 20 ' Kind and Variety of Seed in Mixture: Percent by Weight Turf type: Perennial Rye Blend (3 approved 100% varieties) 21 22 The rate of application must be 6 pounds per 1000 square feet. 23 24 The seed mixture must be no less than 98 percent pure, and must have a 25 minimum germination rate of 90 percent, and contain less than 1.5 percent inert ' 26 27 material. No noxious weeds will be permitted. Seed must be certified grown in Washington. Oregon or Idaho. 28 29 8-02.3(10)C.DOCX 30 Lawn Establishment 31 32 8-02.3(10)C.INST1.DOCX 33 Section 8-02.3(10)C is supplemented with the following: 34 35 8-02.3(10)C.OPT1.DOCX i36 (******) 37 The Plant Establishment Plan shall show the scheduling, frequency, dates, ' 38 39 materials and equipment utilized, whichever may apply, for all plant establishment activities including, but not limited to, the following: 40 ' 41 A. Lawn Mowing and Fertilizing 42 43 B. Irrigation System ' 44 45 1. Winterization of affected zones 46 MAPLE HEIGHTS BRIDGE SEISMIC RETROFIT PAGE 101 OF 106 SPECIAL PROVISIONS—Addendum 1 WORK ORDER#3693 MAY 4,2020 FEDERAL AID#BHM-2776(008)