Orange County NC Website
Browse       Search
2 <br /> Engineering Division of the Planning & Inspections Department has determined that the existing <br /> earthen berm is exhibiting significant structural deterioration along the entire length of the 1,000+ <br /> foot long earthen berm. These structural deficiencies are far worse than originally anticipated, <br /> and have only become apparent due to the Engineering Division's current ability to observe the <br /> portions of the earthen berm that are typically underwater. Attachment 2 is a summary of <br /> photographs showing the deteriorated conditions of the existing erosion control barrier along the <br /> Lake Orange dam (taken while the water level is currently down). <br /> The Engineering Division estimates that upwards of 50 cubic yards of earthen dam have been <br /> lost to erosion over the decades due to the continued deterioration of the existing erosion control <br /> barrier, and that this erosion will increase exponentially over time until the issue is addressed. <br /> While there is no immediate risk of dam failure, the existing deteriorated erosion control barrier <br /> must be stabilized/repaired/replaced as soon as possible. <br /> Proposed Contract Amendment #1 scoping includes the complete removal and replacement of <br /> the existing deteriorated erosion control barrier with a robust system of interlocking concrete <br /> blocks called ArmorFlex. See Attachment 3 for a display of the scoping for Contract Amendment <br /> #1 and pictures of a typical ArmorFlex system. This scoping is as described within Orange County <br /> Bid No. 367-OC 5339 as "ALT-1". Use of the currently mobilized contractor (Fred Smith) to <br /> perform this construction work while the Lake Orange water surface is in its temporarily lowered <br /> condition will provide the most economical and pragmatic means for commencing this critical dam <br /> reconstruction/repair work. <br /> FINANCIAL IMPACT: Contract Amendment #1 will be funded via $306,180 of requested <br /> additional construction funding for CIP #10074, as contained within proposed Budget Amendment <br /> #9. Budget Amendment #9 is a separate agenda item on the March 15, 2022 meeting agenda. <br /> The pending construction contract amendment will not exceed the $306,180 Budget Amendment <br /> request for the Project. <br /> SOCIAL JUSTICE IMPACT: The following Orange County Social Justice Goal is applicable to <br /> this item: <br /> • GOAL: ENSURE ECONOMIC SELF-SUFFICIENCY <br /> The creation and preservation of infrastructure, policies, programs and funding necessary <br /> for residents to provide shelter, food, clothing and medical care for themselves and their <br /> dependents. <br /> ENVIRONMENTAL IMPACT: The following Orange County Environmental Responsibility Goal <br /> impact is applicable to this agenda item: <br /> • RESULTANT IMPACT ON NATURAL RESOURCES AND AIR QUALITY <br /> Assess and where possible mitigate adverse impacts created to the natural resources of <br /> the site and adjoining area. Minimize production of greenhouse gases. <br /> RECOMMENDATION(S): The Manager recommends that the Board: <br /> 1. Authorize the County Manager and staff to approve the award of Contract Amendment #1 <br /> (Attachment 4) to the Fred Smith Company of Raleigh, NC; <br /> 2. Authorize the Board Chair to execute Contract Amendment #1 (Attachment 4) for the <br /> Project with the Fred Smith Company of Raleigh, NC on behalf of the Board, subject to <br /> final review by the County Attorney; and <br /> 3. Authorize the County Manager to execute any subsequent construction contract <br /> amendments with the Fred Smith Company on behalf of the Board, up to the approved <br /> budget amount and subject to final review by the County Attorney. <br />