Laserfiche WebLink
five weeks after the time of seeding. The Contractor shall guarantee that a stand of grass exists <br />after the five week period. If areas or patches exist without a satisfactory stand of grass, the <br />Contractor shall reseed and maintain until a satisfactory stand exists. <br />D. Sod: The sod shall be laid by staggering joints. On any slopes, the sod shall run parallel to a 90 <br />degree angle to the slope. After installation, the sod shall be thoroughly soaked. <br />After soaking, the sod shall be permitted to dry to the point where it is still wet enough for effective <br />rolling. It shall then be rolled in two directions with a lawn roller weighing not less than 150 pounds <br />to secure a tight bond of sod to subgrade and between strips. <br />The Contractor shall be responsible for maintaining and watering sodded areas for a period of five <br />weeks after the placement of sod. The Contractor shall guarantee the sod and any areas of dead <br />or dying sod shall be replaced and maintained until it is self- sufficient. <br />E. Fertilizer: <br />The fertilizer shall be a granular type, incorporated into the top 4 inches of the soil at a rate of 6 <br />pounds per 1000 square feet of surface area. <br />F. Mulching: <br />1. General: All mulching procedures shall be done after the seeding operation is completed and <br />not in conjunction with seeding. Mulching is not required for areas to be covered with soil <br />retention blankets, except as may be required for hydraulic seeding slurries. Hay mulch shall <br />not be used in lawn areas. <br />2. Hay or straw mulch: Hay or straw shall be spread evenly over the seeded surface at a rate of <br />2 tons per acre (approximately 1.5 bales per 1000 square feet) and shall be crimped into the <br />soil with approved equipment. On steep slopes where crimping is not possible a tackifier shall <br />be applied at the rate of 150 pounds per acre to prevent mulch from blowing away. <br />3. Hydraulic mulching: The hydraulic mulching material shall be spray applied to the seeded <br />area at a rate of 1,500 pounds /acre. Hydraulic mulching shall not be done in the presence of <br />free surface water resulting from rain, melting snow or other causes. <br />4. Mulch rates may be reduced (hydraulic mulching) or eliminated (hay or straw mulch) if bonded <br />fiber matrix will be used. Contractor shall submit proposed slurry mix proportions for review at <br />least 48 hours prior to application. <br />G. Bonded Fiber Matrix <br />1. Bonded fiber matrix shall be applied to seeded areas within 48 hours of seeding, at a rate of <br />3,500 pound per acre. <br />2. Application shall be by a Contractor certified by the manufacturer in the proper procedures for <br />mixing and application of the product. <br />PART 4 MEASUREMENT AND PAYMENT <br />4.1 NATIVE OR LAWN SEED APPLICATION <br />Payment shall be per acre seeded per the appropriate Bid item and is to include all work related to <br />preparation and seed application. The Contractor shall supply the Engineer with all weight and <br />mixture tickets for native seeding materials used. <br />Revegetation <br />2821 -4 <br />