Okaloosa County BOCC — December 18, 2012 — reading text

vegetation is ready for inspection. The Contractor shall meet and accompany the Engineer onsite during the inspection. F. Soil Amendments: The Contractor shall submit the required manufacturer’s information certifying that soil amendments meet the specifications. PART 2 - EXECUTION 2.1 GENERAL A. Schedule The Contractor shall complete all construction activity (plant, sand fence, signage, and post and rope installation) and remove all equipment from the beach and work areas prior to marine turtle nesting season (May 1 – October 31). The Contractor shall not commence work until receiving a written Notice to Proceed from the Owner or Engineer. Work is permitted seven (7) days a week during daylight hours only (sunrise to 1 hour after sunset). B. Notification The Contractor shall notify the Engineer at least 3 days prior to project mobilization, commencement of installation, project completion, inspections, and demobilization. The Contractor shall notify the Engineer at least 10 days before the scheduled 180-day vegetation inspection. The Contractor shall notify the Engineer at least 48 hours prior to the suspension of work. The Contractor shall notify the Engineer immediately for any Last Revised – 01/09/2013 Page 56 Packet Pg. 406  8.5.a.a work stoppages resulting from environmental impacts (turtle nest impacts, fuel spills, etc.), permit violations, property owner disputes, safety violations, etc. C. Work Attachment: Request for Bids (1264 : Approval of Bid - Dune Planting Projects (Okaloosa Island & Western Destin)) The Contractor shall install the dune vegetation, sand fencing, signage, and post and rope in accordance with the Drawings. The Contractor shall field-verify the specific locations of the work and obtain Engineer approval prior to installation of any work components. The Owner and Engineer reserve the right to suspend the work at any time when the location, layout, or limits established by the Contractor are not sufficient to define the work. The Contractor shall utilize the construction baseline and stationing shown in the Drawings to define features of the work and document completed work areas. D. Planting Layout The Contractor shall lay out the locations of the proposed vegetation areas, for approval by the Engineer, prior to planting. At a minimum, the layout shall include markers (e.g., flagging or stakes) at the seaward and landward limits of the planting area, accesses (paths and dune walkovers), and endpoints of the work. The markers shall be placed at 100-foot centers maximum and at reduced distances in non-uniform areas to clearly define the planting area. The Contractor will be responsible for tracking and removing all stakes and markers from the beach project area. The work shall be performed in a continuous manner from start to finish without interruption or variation. 2.2 WORK AREAS AND ACCESS A. Planting Areas The plant units shall be installed on the existing dune within the planting areas shown in the Drawings. The Zone I planting area primarily represents the seaward dune face and dune crest. The Zone II planting area primarily represents the landward dune face. B. Staging Areas The Contractor shall utilize the staging areas shown in the Drawings. The Contractor shall maintain the staging areas in a neat and orderly fashion and minimize the area utilized for staging and/or equipment storage. The Contractor will be responsible for cleaning and restoring the staging areas to pre-construction conditions to the satisfaction of the Owner and Engineer prior to demobilization. The Contractor shall be responsible for any damage to the existing dunes, dune vegetation, private and public property, and staging, work, and access areas. The Contractor shall repair any damage resulting from the Contractor’s operations at no cost to the Owner or Engineer. The Contractor will not be permitted to stockpile equipment or materials on the beach except those required for immediate (same day) planting or installation. The Contractor is responsible for the collection and removal of any debris and litter associated with the work. The Work Plan submitted by the Contractor shall describe the proposed use (including equipment/materials to be stored, schedule, etc.) of the staging areas. Last Revised – 01/09/2013 Page 57 Packet Pg. 407  8.5.a.a C. Beach Access The Contractor shall utilize only the beach access corridors shown in the Drawings unless otherwise approved by the Owner and Engineer. The Contractor shall maintain all beach accesses in working order and shall not inhibit the general public from accessing Attachment: Request for Bids (1264 : Approval of Bid - Dune Planting Projects (Okaloosa Island & Western Destin)) the beach. The Contractor shall not enter or place planting units, sand fence, equipment or materials on private properties outside of the project area defined in the Drawings. The Contractor shall minimize access and travel along the beach to avoid disturbance or impacts to the existing beach and dune system. Driving vehicles along any part of the dune or upland of the dune is prohibited. The Contractor shall repair any damage resulting from the Contractor’s operations at no cost to the Owner or Engineer. D. Work Area The Contractor’s active work area shall not exceed 500 linear feet in a shore-parallel direction. PART 3 - PRODUCTS 3.1 PLANTING MATERIALS A. Plant Source The source of all planting units delivered under this bid item will be limited to seeds and propagated plants collected from the South Alabama and Florida Panhandle coasts. Source material collected from areas other than the South Alabama and the Florida Panhandle coasts (e.g., Florida east coast or Caribbean) will be rejected. The Contractor shall provide written documentation as to the source of the planting units in the bid package. Documentation shall include collection permits or contracts from the Florida Department of Environmental Protection (FDEP), the U.S. Department of Agriculture, or other comparable documents. Bids submitted without this documentation will not be considered. B. Plant Species The Contractor shall plant the native dune species listed below in accordance with the specified percentages of total plants and within the areas shown in the Drawings. The Contractor shall meet the specified planting percentages over the approximately 1,500 to 2,000-feet long acceptance sections documented in the Drawings. Section 3.1.C below includes specifications for the diversity species. The Contractor’s Work Plan shall include a detailed description of the proposed planting scheme. 1. Planting Zone I (Seaward Dune Face and Dune Crest): a. Sea Oats (Uniola paniculata) – 80% b. Panic Grass (Panicum amarum) – 10% c. Diversity Species – 10% 2. Planting Zone II (Landward Dune Face): Last Revised – 01/09/2013 Page 58 Packet Pg. 408  8.5.a.a a. Sea Oats (Uniola paniculata) – 70% b. Panic Grass (Panicum amarum) – 10% c. Diversity Species – 20% Attachment: Request for Bids (1264 : Approval of Bid - Dune Planting Projects (Okaloosa Island & Western Destin)) C. Diversity Species The Contractor shall provide and install a minimum of three additional native species according to the percentages specified above. The Contractor shall plant the diversity species intermittently among the sea oats, in even distributions, and within the areas of greatest survival and function according to standard industry practice. The diverse species provided shall be in even proportions. Diversity species may include (but not be limited to): Beach Elder (Iva imbricata) Beach Morning Glory (Ipomaea imperati) Railroad Vine (Ipomoea pes-caprae) Sea Purslane (Sesuvium portulacastrum) Coastal Blue Stem (Schizachyrium scoparium) Dune Sunflower (Helianthus debilis) Blanket Flower (Gaillardia pulchella) Coastal Sea Rocket (Cakile lanceolata) The Contractor may recommend additional diversity species for approval by the Engineer. The Contractor shall submit appropriate documentation identifying the advantages of the proposed species and certifying the proposed species are suitable for the site. 3.2 PROPAGATION METHODS A. Liners For 2-inch species, all plant materials shall be grown in multi-well trays (liners) not to exceed a size of approximately 1.5 inches wide by 1.5 inches long and not less than 2.5 inches in depth. Root ball (container) volumes shall not be less than 5 cubic inches. For 4-inch species, all plant materials shall be grown in multi-well liners not to exceed a size of approximately 3.1 inches wide by 3.1 inches long and not less than 3 inches in depth. Root ball (container) volumes shall not be less than 26 cubic inches. B. Number of Seeds per Liner The nursery shall determine, through germination experiments, the number of seeds placed in each liner such that viable planting units with at least three emergent stems for 2-inch planting units and at least four emergent stems for 4-inch planting units are Last Revised – 01/09/2013 Page 59 Packet Pg. 409