To be heard May 9, 2024Agenda Item No. 19

Staff Recommendation

Approve the requested variance to reduce the minimum broken back curve tangent on Road 'A' from 150 ft to 56.69 ft between STA 13+95.46 and 14+52.15, based on the following evidence of hardship presented by the applicant.
a. The property is topographic

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1) Connection to sanitary sewer and meeting other relevant utility provider requirements.
2) Provision of street names consistent with the Uniform Street Naming and Addressing System within Knox County (County Ord. 91-1-102).
3) Implementing the recommendations of the Lennox Ridge Subdivision Transportation Impact Study (AJAX Engineering, March 25, 2024) as revised and approved by Planning and Knox County Engineering and Public Works staff (see Exhibit C).
4) Certifying that the required sight distance is available along Heiskell Road in both directions at the Road 'A' intersection during the design plan phase.
5) If any building construction is proposed within the 50' buffer area around the designated sinkholes/depressions (including the depressions), a geotechnical report must be prepared by a registered engineer to determine soil stability and that report must be submitted to the Knox County Department of Engineering and Public Works for consideration. Any construction in these areas is subject to approval by the County following review of the report. Engineered footings must be designed for these areas. For those lots that do not have a building site outside of the 50' buffer, approval by Knox County will be required prior to final plat approval. The sinkholes/depressions and 50' buffer shall be designated on the final plat even if they are approved to be filled.
6) Providing 200-ft sight distance easements through curves with a horizontal radius of less than 200 ft, as required by Knox County Engineering and Public Works during the design plan phase. Driveways must have a depth of 20 ft past the sight distance easement.
7) Providing the right-of-way stub-out to the property to the southeast (parcel 046 047) near the Heiskell Road intersection, as shown on the concept plan, and notification of future connection per section 3.04.C.2 of the Subdivision Regulations.
8) Installing high visibility construction fencing along the "approximate limits of disturbance" line on the northern portion of the property, between Road 'A' and Heiskell Road. The fencing must be installed before grading activities start and maintained until the road construction is complete.
9) Meeting all applicable requirements of the Knox County Department of Engineering and Public Works and the City of Knoxville Department of Engineering.
10) Before certification of the final plat for the subdivision, establish a property owners association or other legal entity responsible for maintaining common facilities, such as common areas, amenities, private roads, and/or stormwater drainage systems.