Disposition Summary

Approve the variance to reduce the minimum vertical curve K-value on Road 'D' from 25 to 20 at STA 12+00.45, based on the following evidence of hardship.
A) The reduced K-value allows the road to closely match the existing topography.
B) The proposed road alignment allows for less disturbance in the HP (Hillside Protection) area to the south.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the variance to reduce the minimum vertical curve K-value at a 4-way intersection on Road 'D' from 25 to 15 at STA 8+77.18, based on the following evidence of hardship.
A) The reduced K-value allows for less grading onto the hillside on the opposite side of the intersection.
B) The vertical curve is at a stop condition at an intersection.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the variance to reduce the minimum vertical curve K-value at a 4-way intersection on Road 'C' from 25 to 20 at STA 28+79.55, based on the following evidence of hardship.
A) The reduced K-value allows the road to closely match the existing topography.
B) The vertical curve is at a stop condition at an intersection.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the alternative design standards based on the justification provided by the applicant and the recommendations of the Knox County Department of Engineering and Public Works.

Approve the Concept Plan subject to 7 conditions.

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Staff Recommendation

Approve the variance to reduce the minimum vertical curve K-value on Road 'D' from 25 to 20 at STA 12+00.45, based on the following evidence of hardship.
A) The reduced K-value allows the road to closely match the existing topography.
B) The proposed road alignment allows for less disturbance in the HP (Hillside Protection) area to the south.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the variance to reduce the minimum vertical curve K-value at a 4-way intersection on Road 'D' from 25 to 15 at STA 8+77.18, based on the following evidence of hardship.
A) The reduced K-value allows for less grading onto the hillside on the opposite side of the intersection.
B) The vertical curve is at a stop condition at an intersection.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the variance to reduce the minimum vertical curve K-value at a 4-way intersection on Road 'C' from 25 to 20 at STA 28+79.55, based on the following evidence of hardship.
A) The reduced K-value allows the road to closely match the existing topography.
B) The vertical curve is at a stop condition at an intersection.
C) Approval of the variance is not anticipated to be detrimental to public safety, health, or welfare because the request meets the American Association of State Highway and Transportation Officials (AASHTO) design standards. The Knox County Department of Engineering and Public Works recommends approval of this variance based on the justification provided by the applicant.

Approve the alternative design standards based on the justification provided by the applicant and the recommendations of the Knox County Department of Engineering and Public Works.

Approve the Concept Plan subject to 7 conditions.

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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 street and intersection improvement recommendations outlined in the Transportation Impact Study (TIS) prepared by Ajax Engineering (August 24, 2020) for the portions of Brakebill Road and Hammer Road adjacent to the subject property (see Exhibit B). The design details shall be worked out with the Knox County Department of Engineering and Public Works during the design plan stage.
4. If during design plan approval or construction of the development, it is discovered that unforeseen off-site improvements within the right-of-way are necessary as caused by the development, the developer will either enter into an MOU with the County for these improvements or reimburse the County for their direct expenses (if completed by County crews) to make corrections deemed necessary.
5. Moving the sidewalk on Road 'A', north of Road 'C', to the west side to match the other sidewalks on Road 'A', if required by Knox County Engineering and Public Works.
6. Meeting all applicable requirements of the Knox County Department of Engineering and Public Works.
7. 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.

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This proposal is a revision of the roads in Phase 3A of the Strawberry Hills Subdivision to provide a cul-de-sac on the eastern end of Road 'D' and directly connect Road 'C' in Phase 3A to Road 'C' in Phase 2. In addition, the lots on Road 'C', east of Road 'A', have been reduced in width. The property was rezoned from A (Agricultural) to PR (Planned Residential) up to 9 du/ac in 2018 (2-C-18-RZ). The overall development will have 311 residential lots at a density of 3.09 du/ac.

BACKGROUND
This subdivision was approved in 2020 with 227 detached and 95 attached house lots (322 dwelling units) and was required to install a turn lane on Brakebill Road, widen a portion of Hammer Road, and install a sidewalk between its access points to Brakebill Road and Hammer Road (9-SB-20-C / 9-D-20-UR). In 2023, Phase 2 was approved to move the attached house lots to the northern boundary of the subdivision, adjacent to Hammer Road (5-SB-23-C / 5-A-23-DP). This increased the number of attached lots from 95 to 96 and did not significantly change the original road layout. In 2024, Phase 3B was approved to allow 8 detached house lots to directly access Brakebill Road via a private right-of-way (4-SB-24-C / 4-B-24-DP). In the original plan, 7 houses in this area accessed an internal road that had to make two stream crossings. When Phase 3B was approved, it disconnected what is now called Road 'D' from Road 'C' in Phase 3A (current application), significantly changing the internal road network and requiring reconsideration by the Planning Commission.