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r FEB -1 1c,91', <br />BOOK 91 F,,'F 673 -7 <br />TO: James Chandler <br />County Administrator <br />THROUGH: James W. Davis, P.E.-- <br />Public Works Director <br />FROM: Don G. Donaldson, P.E. <br />Coastal Engineer <br />SUBJECT: Addendum to Contract with American Coastal <br />Engineering, Inc. for the Computer Modeling of the <br />P.E.P. Reef <br />DATE: January 31, 1994 <br />DESCRIPTION AND CONDITIONS <br />C:PICS: ADA14S.NM <br />Staff has recently received a completeness summary from the <br />Department of Environmental Protection (DEP), Bureau of Coastal <br />Engineering and Regulation in response to the County's P.E.P. Reef <br />project. The Department of Environmental Protection has asked <br />detailed questions regarding the P.E.P. Reef's impact upon the <br />project area and has requested an analysis of Coastal processes <br />within the project area. The DEP states "The analyses required <br />above must employ state of the art technology for coastal <br />structures design, wave refraction and diffraction, shoreline <br />evolution and nearshore hydraulics modeling". Staff feels that a <br />reasonable assessment of the P.E.P. performance can be modeled <br />using less complicated techniques. <br />Staff requested American Coastal Engineering, Inc. to prepare a <br />cost estimate for modeling the P.E.P Reef using simplified <br />techniques. Coastal Technology, Corp is a subcontractor to <br />American Coastal Engineering, Inc., and they have proposed that a <br />modified one -line model be used (see attached). The estimated cost <br />for this model is $25,000.00 dollars. The opinion of Staff is that <br />this is a reasonable estimate for the required work effort. <br />However, the County must obtain confirmation from the DEP that this <br />model is acceptable. Staff is planning a meeting with the DEP, <br />American Coastal Engineering, Inc., and others to discuss the <br />request. We anticipate that the model issue will be resolved at <br />this meeting. <br />RECOMMENDATIONS AND FUNDING <br />Staff anticipates that a future amendment to American Coastal's <br />contract will be necessary for the modeling of the P.E.P. Reef for <br />the scope of work _included in the attached letter from American <br />Coastal Engineering, Inc. dated January 25, 1994. Additional cost <br />not to exceed $25,000.00 dollars is anticipated. Preliminary <br />approval of .the additional work is requested at this time. If <br />approved, staff will prepare a formal amendment #2 to the original <br />contract for the Boards consideration on February 8, 1994. <br />Funding to be from Tourist Tax Revenues. <br />34 <br />� � r <br />