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HomeMy WebLinkAboutWILMARC MEDICAL - FDP - FDP170005 - SUBMITTAL DOCUMENTS - ROUND 1 - LANDSCAPE PLAN (3)TECHNICAL SPECIFICATIONS WilMarc Medical 3.3 SEEDING: A. General: Accomplish seeding by a broadcast seeding. Broadcast seed to be raked in at a min. of YV B. Seeding Seasons a. Spring Seeding: Spring thaw to May 31. b. Summer Seeding: July 15 to August 20. C. Fall Seeding (dormant): October 15 to March 31. C. Dormant Seeding: Upon approval of the Owner's Representative, dormant seeding may be accomplished between October 15 and March 31. No seeding shall be done when the ground is frozen, muddy, covered with snow, or otherwise in a condition unsuitable for seeding. Dormant seeding will not relieve the Contractor from any of the warranty or acceptance requirements specified elsewhere in this Section, except that Final Acceptance shall not occur until June 1 at the earliest. 3.4 MULCHING: A. In areas too small or too steep for crimping, straw may be spread uniformly on the surface at the specified rate. Apply tackifier in accordance with WYDOT 806.7. B. Hydromulch Application: Use an approved hydromulcher to apply cellulose fiber at a rate of 2000 Ibs/acre. Mulch tackifier shall be applied at 200 lb/acre. C. Mulching shall not be done in the presence of free surface water resulting from rains, melting snow or other causes. D. Areas not properly mulched, or damaged due to the Contractor's negligence, shall be repaired and re -mulched in an acceptable manner at the Contractor's expense. Mulching removed by wind prior to acceptance shall be replaced by the Contractor at his own expense. E. The seeded area shall be mulched within 24 hours after seeding. Areas not mulched within 24 hours after seeding must be re -seeded with the specified seed mix at the Contractor's expense. F. Remove over -sprayed mulch immediately from trees, shrubs and sod to prevent damage to same. 3.5 EROSION CONTROL BLANKET: Install erosion control blanket on slopes exceeding 4:1 and in swales or other areas of concentrated runoff. Install in accordance with manufacturer's instructions. 3.6 CLEANING: Remove debris and excess materials from site. Clean paved and finished areas soiled as a result from work under this section, in accordance with direction given by the Owner's Representative. Clean out drainage inlet structures. 3.7 PROTECTION: At no additional cost to the Owner, provide and install barriers as required and as directed by the Owner's Representative to protect seeded areas from damage from pedestrian and vehicular traffic. END OF SECTION 329219 Russell + Mills Studios 329219 - 5 Seeding TECHNICAL SPECIFICATIONS WIIMarc Medical Broadcast Seeded Rate: 15 PLS#/Acre C. Water: Free of substances harmful to plant growth. Be responsible for furnishing water from underground sprinkler system, quick couplers or other source. D. Fertilizer: None required. E. Mulch: Comply with WYDOT 806.2. Straw mulch shall be a clean grass hay or cereal straw and certified weed free before delivery on site and acceptance. Fifty percent of straw length shall be 10 inches or longer crimped into soil. F. Tackifier: Comply with WYDOT 806.7. G. Erosion Control Blanket: As specified under Section 01565, Erosion and Sedimentation Control. PART 3: EXECUTION 3.1 EXAMINATION: A. Verify that existing site conditions are as specified and indicated before beginning work under this section. 1. Layout: Verify layout of seeding areas as indicated prior to starting seeding operations. 2. Grades: Inspect to verify that fine grading is within 0.1 foot of grades specified and indicated. B. Unsatisfactory Conditions: Report in writing to General Contractor with a copy to the Owner's Representative. C. Acceptance: Beginning of installation means acceptance of existing conditions by this Contractor. 3.2 PREPARATION A. Protection: 1. Be responsible for proper repair to landscape, utilities, fences, pavements and other site improvements damaged by operations under this section. 2. Pay for repairs made by Contractor(s) designated by the Town. 3. Identify prepared seeding areas requiring protection and erect barriers for proper protection and traffic control. B. Erosion Control: Take measures and furnish equipment and labor necessary to control and prevent soil erosion, blowing soil and accumulation of wind -deposited materials on the site throughout the duration of work. C. Seeding Areas: Remove weeds, debris and rocks larger than 1" which may hinder seeding or subsequent operations. Dispose of accumulated debris at direction of the Owner's Representative. D. Fine Grading: Perform as required to maintain positive drainage, prevent ponding and direct run-off into catch basins, drainage structures, etc., and to provide smooth well - contoured surface prior to proceeding. A firm weed -free seed bed is required. Tolerance: t 0.10 foot. Russell + Mills Studios 329219 - 4 Seeding TECHNICAL SPECIFICATIONS WilMarc Medical D. Mowing and Trimming: Mow native grasses after the grass has gone to seed, cutting back to not less than 4" height. Remove clippings from adjacent pavement or irrigated turf areas. E. Weed Control: Control annual weeds by mowing. Control perennial weeds through use of selective herbicides approved by the Owner's Representative, only after grass stand has matured sufficiently that it will not be harmed by application of herbicides. PART 2: PRODUCTS 2.1 MATERIALS: A. General: Unless otherwise stated in the Contract, the Contractor shall be responsible for selecting the seed mix to be used on the project based on the soil types and seed mixes outlined under Seed Mixes below. The selected seed mix must be approved by the Owner's Representative prior to its incorporation into the project. 2. All seed shall be furnished in bags or containers clearly labeled to show the name and address of the supplier, the seed name, the lot number, net weight, origin, the percent of weed seed content, the guaranteed percentage of purity and germination, pounds of pure live seed (PLS) of each seed species, and the total pounds of PLS in the container. All brands shall be free from Colorado prohibited noxious weed seeds as Russian or Canadian Thistle, European Bindweed, Johnson Grass, and Leafy Spurge. The Contractor shall furnish to the Owner's Representative a signed statement certifying that the seed is from a lot that has been tested by a recognized laboratory for seed testing within six months prior to the date of delivery. Seed that has become wet, moldy or damaged in transit or in storage will not be acceptable. 3. Computation for quantity of seed required on the project is based on Pure Live Seed (PLS). The formula used for determining the quantity of PLS shall be: Pounds of Seed x (Purity x Germination) = Pounds of PLS. If seed available on the market does not meet the minimum purity and germination specified, the Contractor must compensate for a lesser percentage of purity or germination by furnishing sufficient additional seed to equal the specified product. Product comparison shall be made on the basis of PLS in pounds, stated on each seed bag. B. Seed Mixes: Native Seeding Areas Seed % Alkai Sacaton 22 American Mannagrass 12 Prairie Cordgrass 7 Switchgrass 29 Nabraska Sedge 10 Alkali Bulrush Alney Threesquare 6.7 Softstem Bulrush 10.3 Russell + Mills Studios 329219 - 3 Seeding TECHNICAL SPECIFICATIONS WIIMarc Medical on the outside of the container. Seed damaged in transit or storage will not be accepted. B. Material will be inspected upon arrival at project site. C. Immediately remove unacceptable material from job site. 1.7 PROJECT/SITE CONDITIONS A. Existing Conditions: Vehicular accessibility on site shall be as directed by Owner's Representative. Repair damage to prepared ground and surfaces, caused by vehicular movement during work under this section, to original condition at no additional cost to the Town. B. Environmental Conditions: Do not drill or sow seed during windy weather or when ground is frozen or otherwise un-tillable. 1.8 WARRANTY: A. Warranty for Native Seed in Irrigated Areas: Warrant seeded areas to be in a healthy, vigorous growing condition, and for consistency and completion of coverage for aperiod of one year from date of final acceptance as a full stand of grass. After time of seed germination, re -seed any spots where seed has not germinated within the total seeded area. Continue this procedure until a successful stand of grass is growing and accepted by the Owner's Representative. 1. During the original warranty period, re -sow at once with same seed species those areas that have failed to achieve a stand of grass or which in the Owner's Representative's opinion are unhealthy. 2. Reseeding will not be required in any season definitely unfavorable for seeding. 3. Reseed in a manner to achieve quality as originally specified. 1.9 MAINTENANCE: A. General: The maintenance period shall begin immediately after each area is seeded and continue until Final Acceptance of entire project or a minimum of 90 days, whichever is longer. Final Acceptance of seeded areas will not be given until Owner's Representative is satisfied with germination and a full stand of grass is in a vigorous growing condition, with consistency and completion of coverage. During this time, be responsible for watering, mowing, spraying, weeding, and all related work as necessary to ensure that seeded areas are in a vigorous growing condition. Provide all supervision, labor, material and equipment to maintain seeded areas. After Final Acceptance, maintenance shall become the responsibility of the Town. B. Irrigated Areas: The seeded areas shall be accepted on the basis of having a uniform plant growth over the entire seeded area. Two (2) months after seeding, the seeded areas shall be reviewed by the Owner's Representative and the Contractor. Any areas (as determined by the Owner's Representative) where the seed has failed to germinate shall be reseeded and raked to cover the seed. In any area where the seed has failed to grow, reseeding shall be at the Contractor's expense until grass is established and accepted. Acceptable uniform plant growth shall be defined as when scattered bare spots, not greater than 1 square foot, do not exceed 5% of the seeded area. C. Materials: Conform to specifications or otherwise be acceptable to the Town. Russell + Mills Studios 329219 - 2 Seeding TECHNICAL SPECIFICATIONS WIIMarc Medical SECTION 329219 SEEDING PART 1: GENERAL 1.1 RELATED DOCUMENTS: The General Contract Conditions, Drawings and Division - 1 Specification sections apply to Work of this section. 1.2 SUMMARY: A. Work Included: Installation of native grass seed and specified mulch, netting if applicable, and maintenance of the seeded areas until Final Acceptance. 1.3 REFERENCES: A. Reference Standards: Comply with U.S. Department of Agriculture Rules and Regulations under Federal Seed Act and be equal or better in quality than standards for certified seed. 1.4 SUBMITTALS: A. Quality Control Submittals: Certificates: State or Federal Seed Tags or other inspection certificates shall accompany the invoice for materials showing source or origin. Submit to Owner's Representative prior to acceptance of the material. B. Contract Closeout Submittals: 1. Operating and Maintenance Data: At completion of work, submit 3 copies in accordance with Section 01700. Include directions for irrigation, mowing and spraying as required for continued and proper maintenance through full growing season and dormant period. 2. Warranty for Native Seed in Irrigated Areas: At completion of work, furnish written warranty to Owner based upon requirements as specified. 1.5 QUALITY ASSURANCE: A. Source Quality Control: 1. Seed Materials: Subject to inspection and acceptance. Owner's Representative reserves the right to reject at any time or place prior to acceptance, any work and seed which in the Owner's Representative's opinion fails to meet specification requirements. 2. Inspection: Primarily for quality; however, other requirements are not waived even though visual inspection results in acceptance. 3. Inspection will be made periodically during seeding, at completion of seeding and at end of warranty period by Owner's Representative. B. Testing Requirements: Seed and seed labels shall conform to current State and Federal regulations and be subject to testing provisions of the Association of Official Seed Analysis. 1.6 DELIVERY, STORAGE, AND HANDLING A. Seed: Deliver seed in sealed standard containers stating correct name and composition Russell + Mills Studios 329219 - 1 Seeding