Okaloosa County BOCC — December 18, 2012 — Request for Bids — reading text

water source, labor, required time, notifications, and they physical condition(s) of the planting units, which signal the need for maintenance irrigation. The contractor shall notify the engineer at least 72 hours prior to the application of initial or maintenance irrigation. The contractor shall apply irrigation to the planting areas utilizing a non-destructive, non-scouring methodology. The contractor will be responsible for all aspects of the irrigation, including but not limited to, compliance with all environment permits, local beach access regulations, and any damages arising from initial or maintenance irrigation. The cost of the initial and/or maintenance irrigation shall be included within the installed planting unit bid price. C. Irrigation Water The contractor will be responsible for obtaining and applying all irrigation water required. All water shall be fresh and free from injurious amount of oil, acid, alkali salts or other materials harmful to the growth of the plants. Last Revised – 01/09/2013 Page 47  The contractor shall comply with all applicable permits and ordinances. No temporary or pipe irrigation systems will be allowed. The contractor will be responsible for coordinating with local agencies if the use of local hydrants is proposed. D. Maintenance Fertilization – The contractor, if approved by the engineer, may undertake maintenance fertilizer during the warranty period at their discretion. The contractor shall notify the engineer at least 72 hours prior to the application of maintenance fertilizer. The contractor shall not apply maintenance fertilization within 60 days of end of the 180-day warranty period. The contractor shall include the cost of any maintenance fertilization in the unit cost schedule that accompanies the contractor’s bid documents. The contractor shall undertake maintenance fertilization, if employed, in a manner that complies with all environmental permits applicable to the project site. E. Vehicle Access – In developing irrigation plans, the contractor is advised that vehicle access to the beach and in the dune area is restricted and/or prohibited as outlined in Section 2.2.C and Section 7.6. 3.6 SUCCESS CRITERIA & REPLANTING A. Planting Unit Success Criteria The Engineer will assess the success of the planting effort approximately 180 days after completion of the planting unit installation (for the entire project) using three criteria: whole-site survival rate, planting unit survival pattern, and planting unit roof penetration. The Engineer will consider the planting effort a success and acceptable if all three of the described criteria (Criteria 1 – 3 below) are met at the 80% level. The Engineer will assess these criteria across the approximately 1,500 to 2,000-feet acceptance sections documented in the construction drawings for the purpose of warranty and payment. B. Whole-Site Survival Rate (Criteria 1) A minimum survival rate of 80% of all planting units installed over the site as a whole shall be achieved. The Engineer will consider plants as surviving if they show clearly vigorous rhizome and white, turgid roots, even in the absence of vital above ground growth. C. Planting Unit Survival Patter (Criteria 2) A minimum of 80% of the planting width perpendicular to the shoreline shall be occupied by surviving planting units at all locations. This survival criterion is needed to minimize the risk of dune over wash during storm events. The Engineer may waive this success criterion in areas where plant survival has been adversely impacted by unexpected pedestrian traffic, erosion, overwash or inundation. D. Planting Unit Roof Penetration (Criteria 3) A minimum of 24 out of 30 (80%) randomly selected plants within each acceptance section shall have achieved root penetration of nine inches Last Revised – 01/09/2013 Page 48  or greater, as measured from the top of the root ball down. The contractor or engineer, immediately following plant installation, shall tag the 30 randomly selected plants used to determine this measure of success. The Engineer may waive this success criterion if lesser root penetration is otherwise determined to be acceptable or if the lesser penetration was caused by factors outside the control of the contractor (e.g., excessive nature rainfall). E. Replanting of Units If any of the above success criteria are not met, as determined by the Engineer, the contractor shall replant the unsuccessful planting units with viable within-specification planting units of the same type originally installed. The contractor will assume sole responsibility for the replanting of planting units and will complete the replanting at no cost to the Owner. All warranty and survival provisions and requirements will apply to replanted planting units. The contractor will be responsible for properly disposing of all rejected planting units. F. Initial Planting Unit Survival The Engineer will reject and not consider eligible for payment all planting units that do not survive for a minimum of 10 days after installation. Within 5 days of notification by the Engineer that an area of initial planting units did not survive for 10 days, the contractor shall install new, within- specification planting units in areas identified by the Engineer. The contractor shall assume sole responsibility for installing the new replacement planting units at no cost to the Owner. The Engineer will consider the replacement planting units eligible for payment as “original” planting units only after they have survived a minimum of 10 days after installation. The contractor will be responsible for properly disposing of all rejected planting units. PART 4 – SAND FENCE AND POST & ROPE INSTALLATION 4.1 MATERIALS A. The construction drawings specify acceptable sand fencing, post and rope materials. 4.2 INSTALLATION A. The contractor shall install sand fence along with seaward toe of the dune (seaward planting area limit), atop the flat back bern as shown in the drawings. Prior to installation, the contractor shall demonstrate the installation technique to be applied for installing the sand fencing, maintaining proper spacing and attached the rope. The contractor, at the discretion of the Engineer, may be allowed to vary sand fence length and/or spacing requirements in transition areas (e.g., areas adjacent to dune walkovers, accesses, etc.). Following sand fencing installation, the contractor shall attach a single strand of rope to the seaward sand fencing post as shown in the drawings to create a uniform barrier for the dune area. The rope connection shall be threaded through a hole drilled 3 inches from the top of the post and looped around the post. The rope Last Revised – 01/09/2013 Page 49  shall be stapled or nailed on the landward side to inhibit tampering. The contractor shall allow for uniform sag of approximately 12 inches in the rope between sand fence sections. Where the sand fence terminates at an existing dune walkover, the rope shall be tied and secured to the walkover at an area and elevation to keep the rope elevation and length uniform. The rope shall be stapled or nailed to inhibit tampering or disconnection. Where the sand fence terminates at an existing pathway or beach access, the contractor shall install a post and rope system from the seaward toe of the dune to the landward toe of the dune. The contractor shall install the posts and rope in accordance with the drawings. The posts for the post and rope pathways shall be minimum 3- inch diameter wood posts, no less than 7 feet in length, comprised of treated southern yellow pine, spruce or other wood of equal life and strength as may be approved by the Engineer. The contractor shall maintain a minimum access width of 6 feet at all major pathways unless otherwise shown in the drawings or directed by the Engineer. The engineer reserves the right to modify or field-determine the number and location of beach accesses over the dune. The Engineer will attempt to address the preferences of property owners with respect to access location and size through field adjustments. 4.3 WARRANTY A. The contractor shall warrant the installed sand fence, posts and rope against deterioration and decay for 12 months following final acceptance. The contractor will not be responsible for warranting materials damaged during extreme storm events. PART 5 – SIGNAGE 5.1 SIGNAGE A. Materials – The signage shall be constructed of 80-gage aluminum or better, shall have minimum dimensions of 12 inches & x 12 inches, and shall have white reflective coating and black lettering capable of withstanding the harsh beach environment. The signs shall read “Please Keep Off – Dune