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DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 1 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 PART 1 GENERAL 1.01 WORK INCLUDED A. The work included in this section consists of finish grading, seeding areas disturbed during construction, sod installation, repair of existing lawns, planting beds, and providing of other miscellaneous landscape elements. B. Include any incidental work that can reasonably be inferred as part of the work and necessary to provide a complete landscape system. 1.02 GENERAL A. Topsoil unnecessarily removed shall be replaced and seeded at the Contractor’s expense. B. Suitable equipment necessary for the proper preparation of the ground surface and for the handling and placing of all required materials shall be on hand and in good condition. 1.03 SUBMITTALS A. Submittals during construction shall be made in accordance with Division 1, GENERAL REQUIREMENTS. B. Contractor shall submit a detailed list of all landscaping elements, materials and locations to be replaced as part of the “Landscape Repair” bid items described in Section 01150, MEASUREMENT AND PAYMENT. C. Soil test for stockpiled topsoil and imported topsoil. Tests to include N-P- K, pH, soluble salt, sand/silt/clay percentages and recommended fertilization rates for turf establishment. D. Tags from all seed bags. E. Tags from all fertilizer bags. 1.04 QUALITY ASSURANCE: SEED A. General: Seed shall be labeled in accordance with USDA Rules and Regulations under the Federal Seed Act in effect on date of seed purchase. Seed that has become wet, moldy or otherwise damaged in transit or in storage will not be acceptable. Seed shall contain not less than eighty-five (85) percent pure live seed and not more than 0.5 percent weed seed. ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 2 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 B. Seed Testing: All seed shall be tested within twelve (12) months prior to the planting date. All testing shall be performed by a State Seed Lab, Commercial Seed Testing Lab, or a registered member of the Society of Commercial Seed The Contractor shall furnish a certified test report to the Engineer prior to the start of seeding operations. Seed not planted within the 12-month period shall be retested for dormant seed, hard seed and germination and a new certified test report shall be furnished to the Engineer. Testing shall be the responsibility of the Contractor. C. Labeling: Before seeding begins, the Engineer shall verify that each bag of seed delivered to the project bears a tag that shows the following information: 1. Name and address of supplier. 2. County and project number for which seed is to be used. 3. Supplier’s lot number for each kind of seed. 4. Origin for each kind of seed. 5. Purity and germination for each kind of seed. 6. Pounds of bulk seed of each kind of seed in bag. 7. Pounds of pure live seed in each bag. 8. Dormant Seed and Hard Seed. 9. Date of seed testing. 1.05 ENVIRONMENTAL REQUIREMENTS A. Do not install vegetation when ambient temperatures drop below 35 degrees F and rise above 90 degrees F. B. Do not install vegetation when wind velocity exceeds 30 mph. 1.06 WARRANTY A. Seeded Areas: Warranty seeded areas for eight weeks or until acceptable stand has been established. B. General: Warranty sod, plants, landscape materials and workmanship for one year from date of substantial completion. Replace or repair as required. PART 2 PRODUCTS 2.01 TOPSOIL ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 3 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 A. Topsoil may be available from onsite stockpiles by the Contractor. Topsoil shall be considered to be natural surface soil capable of producing satisfactory agricultural crops and shall be free from matter that may be harmful to plant growth or a hindrance to grading, seeding, and maintenance. If more topsoil is needed than has been stockpiled, supply imported topsoil at the Contractor’s sole expense. B. Imported topsoil shall be sandy loam, from a source reviewed by the Engineer, and shall possess friability, and a high degree of fertility, free of clods, roots, gravel, inert material, and noxious vegetation or seed. Maximum particle size shall be ¾-inch. C. Topsoil, both stockpiled and imported, shall meet, or shall be improved to meet by adding sand and/or compost, the following requirements: Component Maximum Percentage Sand 65 percent Silt 50 percent Clay 25 percent 2.02 SEED A. Native Grass Seed Mix: Seed mixture shall be in pounds of pure live seed, PLS, 24 pounds total per acre, composed of: 1. Agropyron smithii ‘Rosanna’, Western Wheatgrass: 10 lb/acre 2. Agropyron spicatum, Bluebunch Wheatgrass: 6 lb/acre 3. Festuca ovina ‘Covar’, Sheep Fescue: 4 lb/acre 4. Poa sandbergii, Sandberg Bluegrass: 3 lb/acre 5. Puccinella distans ‘Fults’, Alkaligrass: 1 lb/acre B. Lawn Grass Seed Mix: Seed mixture shall be a Bluegrass and Fescue Mix, guaranteed 95 percent pure and to have a minimum germination rate of 85 percent within one year of test. Mixture in pounds of PLS per 1000 square feet shall be 15 pounds total, composed of: 1. Park Kentucky Bluegrass: 3.0 lb/1000 s.f. 2. Kenblue Bluegrass: 3.0 lb/1000 s.f. 3. Merit Kentucky Bluegrass: 3.0 lb/1000 s.f. 4. Perennial Rye: 3.75 lb/1000 s.f. 5. Creeping Red Fescue: 2.25 lb/1000 s.f. 2.03 SOD A. Contractor shall furnish sod that has a good covering of living or growing grass. This shall be interpreted to include grass that is seasonally dormant ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 4 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 during the cold or dry seasons and capable or renewing growth after the dormant period. All sod shall be obtained from areas where the soil is reasonably fertile and contains a high percentage of loamy topsoil. Sod shall be cut or stripped from living, thickly matted turf relatively free of weeds or other undesirable foreign plants, large stones, roots, or other living materials that might be detrimental to the development of the sod or to future maintenance. B. At least seventy (70) percent of the plants in the cut sod shall be composed of Kentucky Bluegrass species. C. Sod shall be cut to such a thickness that after it has been transported and placed on the prepared bed, but before it has been compacted, it shall have a uniform thickness of not less than two inches. D. Sod sections or strips shall be cut in uniform widths, not less than ten (10) inches, and in of not less than eighteen (18) inches, but of such length as may be readily lifted without breaking, tearing, or loss of soil. Sod shall be rolled without damage with the grass folded inside. 2.04 FERTILIZER A. Fertilizer shall be 16-16-16 recommended for grass. Standard commercial product conforming to Montana Fertilizer Law is acceptable. Each brand and grade must be registered with the State Department of Agriculture. Each bag shall clearly show the net weight of contents, name and address of manufacturer, the brand, grade, and the guaranteed analysis of the contents showing the minimum percentages of total nitrogen available, phosphoric acid and water soluble potash, in that order. 2.05 TREE STAKES AND ANCHORING A. Stake: 2-inch diameter natural peeled wood pole, 8 feet length, 2 per deciduous and coniferous tree. Contractor to remove all staking after one year. B. Anchoring: Rubber tree ties: “Grow Straight” or approved equal. 2.06 PLANT MATERIALS A. All plants must comply with “American Standard for Nursery Stock” ANSI Z60.1-1996. B. Trees, plants, and ground cover shall be of the species and size of the ones removed from the area for the construction, grown in climatic conditions similar to those in the locality of the Work. ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 5 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 C. Broken and malformed balls on trees and shrubs will be rejected. Broken containers on containerized material will be rejected. Plant materials with weeds present will be rejected. Evidence of leader pruning materials with central leaders will be cause for rejection. D. All plant material must have balanced, healthy top and root growth. 2.07 CRUSHED GRAVEL A. Gravel Walkway: ¾-inch minus crushed gravel with fines. Apply to a minimum 6-inch depth. PART 3 EXECUTION 3.01 GENERAL SITE GRADING AND PREPARATION WORK A. After rough grading is completed and before topsoil is spread, thoroughly scarify ground to a minimum depth of 6 inches with a toothed ripping machine by running in two directions at right angles over the entire surface to be planted. B. Spread topsoil over the prepared rough grade using a rubber-tired tractor or equivalent not weighing more than 3 ½ tons. 1. Native Grass Areas: Spread topsoil to a depth of 4 inches in all areas disturbed by construction. 2. Lawn Grass Areas (Sod placement or seeding): Spread topsoil to a depth of 6 inches in all areas requiring repair or replacement. C. Finish Grading: 1. Rake the topsoiled areas and all areas to receive planting or seeding to a uniform grade so that all areas drain. 2. compact with a cultipacker or roller before planting grass. 3. In lawn grass areas remove all debris and stones exceeding two inches in diameter from area to a depth of 2 inches below proposed finish grade prior to preparation and planting grass. 3.02 FERTILIZING A. Apply fertilizer uniformly over the area to be seeded with a proper fertilizer distributor. Rate of application shall be in accordance with the ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 6 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 manufacturer’s recommendations for native grass or lawn grass areas. Fertilizer may be applied during topsoil spreading operations to blend the fertilizer and topsoil prior to compaction of the soil. 3.03 SEEDING A. Soil Preparation: All areas disturbed by construction shall be seeded with native grass seed or have sod installed to match the pre-construction conditions. The Contractor shall also provide weed control on all disturbed areas until completion of all work. B. Method of Seeding: Seed shall be applied using broadcast spreaders. Apply seed in two intersecting directions. Establish firm contact with seed bed by rolling or pressing in. C. The actual date of seed application shall be approved by the Engineer, but should follow the general guidelines listed below: 1. Irrigated areas shall be seeded in the spring of the year after the frost leaves the ground and until approximately October 15. These periods vary depending on the climatic conditions. 2. Non-irrigated areas shall be seeded in the spring of the year after the frost leaves the ground until May 31 and in the fall of the year from approximately September 1 to approximately October 15. These periods vary and are subject to final approval of the Engineer. D. Seeded Area Protection: Protect newly seeded areas from pedestrian traffic by erecting a fence of 2-inch by 2-inch posts 4 feet high spaced 10 feet on center and strung with a single stand of No. 12 wire marked with cloth or plastic strips at 3 foot intervals between posts. 3.04 SOD PLACEMENT A. The sod shall be transplanted within twenty-four (24) hours from the time it is cut, unless circumstances beyond the Contractor’s control make storing necessary. In such cases, sod shall be stacked, kept moist, and protected from exposure to the air and sun and shall be kept from freezing. In no case shall the sod be stored for more than three days. B. Sod shall be cut and moved only when the soil conditions are such that favorable results can be expected. Where the soil is too dry, sod may only be laid after the soil has been watered sufficiently to moisten the soil to a depth of four inches. ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 7 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 C. The sod shall be moist and placed on a moist earth bed. D. Sod shall be placed by hand, edge to edge and with staggered joints, in rows at right angles to the slopes, commencing at the base of the area designated for sod placement and working upward. E. The sod shall immediately be pressed firmly into contact with the sod bed by tamping or rolling with approved equipment to provide a true and even surface, and to ensure knitting without displacement of the sod or deformation of the surfaces of where sod has been placed. F. Topsoil shall be used to fill all cracks between sod strips. The quantity of topsoil used shall not smother the grass. G. The Contractor shall provide general care for the areas where sod has been placed as soon as the sod has been laid and shall continue until final inspection and acceptance of the work. 3.05 LAWN GUARANTEE – SEEDED AREAS A. If, at the end of the 8-week lawn maintenance period, a satisfactory stand of grass has not been produced, the Contractor shall renovate and reseed the grass or unsatisfactory portions thereof immediately, or, if after September 15, during the next planting season, April to October. If a satisfactory stand of grass develops by July 1 of the following year, it will be accepted. If it is not accepted, a complete replanting will be required during the planting season meeting all of the requirements specified hereinbefore. B. A satisfactory stand is defined as grass or section of grass that has: 1. No bare spots larger than 3 square feet. 2. Not more than 10 percent of total area with bare spots larger than 1 square foot. 3. Not more than 15 percent of the total area with bare spots larger than 6 inches square. C. Inspection for Acceptance: Eight weeks after the start of maintenance on the last section of completed grass and on written notice from the Contractor, the Engineer will, within 15 days of such written notice, make an inspection to determine if a satisfactory stand has been produced. If a satisfactory stand has not been established, another inspection will be made after written notice from the Contractor that the lawn or grass is ready for inspection following the next growing season. ---PAGE BREAK--- DRAFT SECTION 02480 FINISH GRADING DIVISION 2 – SITEWORK SEEDING, AND LANDSCAPING 02480 - 8 of 8 Pages M:\1657\013.02\Design Docs\Specs\02480.doc 7/22/2009 3.06 GRAVEL WALKWAY A. Install 6-inch depth of crushed gravel to a width to match the original installation. Water and compact with roller, and tamp edges to compact. 3.07 CLEANING A. The Contractor shall leave the work area in a broom clean condition at the end of each work day. The Contractor shall finish the landscape by washing all paved and stone areas, removing all marking material from plants, trimming any damaged branches and generally cleaning all materials installed. END OF SECTION 02480