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The City of Clarksburg has been remediating 10 road slip projects due to embankment failures throughout the City of Clarksburg. There are 7 active or completed projects and 3 projects that are being monitored throughout the 2018-2019 winter season.
The Request For Proposals for engineering services on all slips went out April 13, 2018 and all proposals were due by April 30, 2018. All of the Engineers who provided proposals were interviewed the week of May 10, 2018 by the City Administration. Each Engineering Firm that was interviewed was assigned 2 slip remediation projects. Clarksburg City Council approved Ascent Consulting and Engineering at their regularly scheduled Council meeting held on May 17, 2018, while all other project Engineers were approved during Council’s meeting on June 7, 2018. Project Engineers that were approved at the June, 7 2018 Council meeting were: Hornor Brothers Engineers, Terradon Corporation, Civil & Environmental Consultants, Inc., The Thrasher Group, and Ascent Consulting and Engineering.
The Leon Street Project was initially a slip remediation project, but the scope of the project has changed after core drilling took place. Abandoned mine voids/collapses were found at the location and were caused by past coal mining activities. These voids and collapses are the contributing factors to the existing ground slippage. Mine void and space stabilization needs to occur before the embankment failure can be remediated. The City of Clarksburg had requested assistance and advice from the WV DEP, but the case was classified as low priority on their list. Ascent Consulting and Engineering had two additional boreholes drilled on Monday, February 5th. To date, there have now been five boreholes drilled at this site. Slip movement is still obvious. The City of Clarksburg is anticipating a draft report will be available soon for review. The mine void will most likely require the installation of grout to help stabilize the area. It may be possible to create a natural grade surface to assist with the stability of the hillside instead of the installation of an H Pile Wall. The total cost of the project including engineering is $570,000.