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2007-136
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2007-136
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Last modified
5/13/2016 10:51:23 AM
Creation date
9/30/2015 10:44:00 PM
Metadata
Fields
Template:
Official Documents
Official Document Type
First Amendment
Approved Date
04/17/2007
Control Number
2007-136
Agenda Item Number
7.T.
Entity Name
Great Lakes Dredge and Dock Co.
Subject
Beach Restoration - Sectors 1,2, 7 Ambersand Beach
First Amendment to Agreement
Area
Ambersand Beach
Project Number
0502
Bid Number
2006047
Supplemental fields
SmeadsoftID
6262
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COUNTY. The CONTRACTOR will be responsible for obtaining, paying for and applying <br /> all irrigation water used under this bid. Freshwater (potable only) shall be provided and <br /> applied to the planting zones using either a CONTRACTOR-installed irrigation system or a <br /> non-scouring spray applicator. It should be noted that size and weight limitations of <br /> vehicles operating on the beach and dune in the Project Area will be in effect subsequent to <br /> March 1 . CONTRACTOR shall specify means of watering to ENGINEER and OWNER as <br /> a component of the Operations and Environmental Protection Plans described in Sections 8 <br /> and 13 of these Technical and Environmental Specifications. <br /> 43 . 13 Inspections and Approvals. The COUNTY will conduct performance inspections of the <br /> dune plantings following the completion of the vegetation work in each reach and at the <br /> completion of the 90-day maintenance period. At the completion of the 90-day vegetation <br /> irrigation and maintenance period, the COUNTY shall conduct final inspection and <br /> approval of the plantings. During the inspection, the COUNTY shall verify that 90 % of all <br /> plantings are in a healthy growing condition. If the plantings do not meet these criteria, the <br /> CONTRACTOR shall be required to replace unhealthy or deceased plants as identified by <br /> the COUNTY. Once the COUNTY verifies that the final inspection criteria have been met, <br /> the COUNTY will submit final written acceptance of the plantings to the CONTRACTOR. <br /> 43 . 14 Success Criteria and Replanting <br /> 43 . 14. 1 Planting Unit Success Criteria. The success of the planting effort will be determined <br /> by the COUNTY approximately 90 days from the end of the plant installation using <br /> two measures : reach survival rate and planting unit survival pattern. The planting <br /> effort shall be deemed a success if both of the described criteria are met at the 90 % <br /> level. <br /> 43 . 14.2 Reach Survival Rate. A minimum survival rate of 90% of all plants installed over <br /> the reach as a whole shall be achieved. Plants will be considered to be surviving if <br /> they show clearly vigorous rhizomes and white, turgid roots, even in the absence of <br /> vital above-ground growth. <br /> 43 . 14.3 Survival Pattern. A minimum of 90 % of the planting zone width perpendicular to <br /> the shoreline shall be occupied by surviving planting units at all locations. For the <br /> typical 60-foot planting zone (92 plants per 60-foot section), a total of 87 surviving <br /> plants must be present within any 3 -foot wide perpendicular transect through the <br /> planting zone. This success criterion may be waived, at the discretion of the <br /> COUNTY, in areas where plant survival has been adversely impacted by unexpected <br /> pedestrian traffic. <br /> 43 . 14.4 Replanting of Planting Units. If any of the above success criteria are not met, as <br /> determined by the COUNTY, the CONTRACTOR shall replant with viable, and <br /> within specification, planting units in all areas considered to be deficient according to <br /> the planting unit success criteria. The replanting of planting units will be the sole <br /> responsibility of the CONTRACTOR and be completed at no cost to the COUNTY. <br /> TECHNICAL AND ENVIRONMENTAL SPECIFICATIONS ' ' TS-47 <br />
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