1. Connection to sanitary sewer and meeting any other relevant requirements of the Knox County Health Department.
2. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) on Lots 25, 77 and 78, as determined by the Tennessee Department of Environment and Conservation. Construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. Engineered footings are required for any structures within the 50' sinkhole buffer. If the developer cannot document that a building site exists on each of these lots outside of the sinkhole buffer, the geotechnical study will be required prior to approval of the final plat.
3. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
4. Prior to design plan approval, the applicant's surveyor or engineer shall provide documentation acceptable to the Knox County Department of Engineering and Public Works that there is 300 feet of sight distance in both directions along E. Copeland Rd. from Dogwood Glen Ln.
5. Addressing off-site drainage across Lot 1 of Silver Mine Subdivision (for drainage outfall for proposed detention basin) to the satisfaction of the of the Knox County Department of Engineering and Public Works at the Design Plan stage of the subdivision.
6. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
7. Meeting all requirements of the approved Use-on-Review development plan.
8. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.

Staff Recommendation

APPROVE variance 1 because the site's topography restricts compliance with the Subdivision Regulations, and the proposed variance will not create a traffic hazard.

APPROVE the Concept Plan subject to 8 conditions

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1. Connection to sanitary sewer and meeting any other relevant requirements of the Knox County Health Department.
2. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) on Lots 25, 77 and 78, as determined by the Tennessee Department of Environment and Conservation. Construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. Engineered footings are required for any structures within the 50' sinkhole buffer. If the developer cannot document that a building site exists on each of these lots outside of the sinkhole buffer, the geotechnical study will be required prior to approval of the final plat.
3. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
4. Prior to design plan approval, the applicant's surveyor or engineer shall provide documentation acceptable to the Knox County Department of Engineering and Public Works that there is 300 feet of sight distance in both directions along E. Copeland Rd. from Dogwood Glen Ln.
5. Addressing off-site drainage across Lot 1 of Silver Mine Subdivision (for drainage outfall for proposed detention basin) to the satisfaction of the of the Knox County Department of Engineering and Public Works at the Design Plan stage of the subdivision.
6. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
7. Meeting all requirements of the approved Use-on-Review development plan.
8. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.

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Disposition Summary

APPROVE variance 1 because the site's topography restricts compliance with the Subdivision Regulations, and the proposed variance will not create a traffic hazard.
APPROVE the Concept Plan subject to 8 conditions

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Details of Action

1. Connection to sanitary sewer and meeting any other relevant requirements of the Knox County Health Department.
2. Placing a note on the final plat that all structures will have to be located at least 50' from the top of the sinkholes (closed contour areas) on Lots 25, 77 and 78, as determined by the Tennessee Department of Environment and Conservation. Construction within the 50' setback may be permitted if a geotechnical study prepared by a registered engineer states that building within the 50' sinkhole buffer is acceptable and the study is approved by the Knox County Department of Engineering and Public Works. Engineered footings are required for any structures within the 50' sinkhole buffer. If the developer cannot document that a building site exists on each of these lots outside of the sinkhole buffer, the geotechnical study will be required prior to approval of the final plat.
3. Meeting all applicable requirements and obtaining all required permits from the Tennessee Department of Environment and Conservation for any alteration to the sinkholes.
4. Prior to design plan approval, the applicant's surveyor or engineer shall provide documentation acceptable to the Knox County Department of Engineering and Public Works that there is 300 feet of sight distance in both directions along E. Copeland Rd. from Dogwood Glen Ln.
5. Addressing off-site drainage across Lot 1 of Silver Mine Subdivision (for drainage outfall for proposed detention basin) to the satisfaction of the of the Knox County Department of Engineering and Public Works at the Design Plan stage of the subdivision.
6. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
7. Meeting all requirements of the approved Use-on-Review development plan.
8. A final plat application based on this concept plan will not be accepted for review by the MPC until certification of design plan approval has been submitted to the MPC staff.