Disposition Summary

Approve the variance for plat approval to increase the deflection angle of the private right-of-way from 10 degrees to 20 degrees at the subject property without providing a horizontal curve, based on the following evidence of hardship.

1. The topography surrounding this particular site would require extensive earthwork moving to provide a horizontal curve, which is not practical as this is a private road with low traffic volumes.
2. The joint permanent access easement (private right-of-way), Arcadia Peninsula Way, has been constructed and dead ends with a turnaround at this property. The owner is replatting to have their lot lines adjusted to parallel where the road was constructed.
3. It is not for financial reasons that the variance is being requested. The road has already been constructed and the owner must replat to move the front lot line out of the private right-of-way.
4. This is a private dead-end road with low volumes of traffic and the deflection angle is not great enough to cause detriment to public safety, health, or welfare of the public, nor would it be injurious to other properties in the neighborhood.

Approve the final plat for one lot in the PR up to 3 du/ac zone.

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Staff Recommendation

Approve the variance for plat approval to increase the deflection angle of the private right-of-way from 10 degrees to 20 degrees at the subject property without providing a horizontal curve, based on the following evidence of hardship.

1. The topography surrounding this particular site would require extensive earthwork moving to provide a horizontal curve, which is not practical as this is a private road with low traffic volumes.
2. The joint permanent access easement (private right-of-way), Arcadia Peninsula Way, has been constructed and dead ends with a turnaround at this property. The owner is replatting to have their lot lines adjusted to parallel where the road was constructed.
3. It is not for financial reasons that the variance is being requested. The road has already been constructed and the owner must replat to move the front lot line out of the private right-of-way.
4. This is a private dead-end road with low volumes of traffic and the deflection angle is not great enough to cause detriment to public safety, health, or welfare of the public, nor would it be injurious to other properties in the neighborhood.

Approve the final plat for one lot in the PR up to 3 du/ac zone.

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BACKGROUND:

This property was platted in 2023 under instrument number 202307110001624. The proposed plat is altering the front lot lines to parallel the joint permanent access easement.

VARIANCE:

Section 3.04.I.1.b.1 - Horizontal curves, local streets in Knox County:

Where a deflection angle of more than ten (10) degrees in the alignment of a street occurs, radii shall be introduced according to the following standards:
- On local streets greater than one thousand (1000) feet in length, the minimum allowable horizontal radius of curvature at the centerline of the proposed road right-of-way shall be not less than two hundred fifty (250) feet. The Planning Commission on the recommendation of the Knox County Department of Engineering and Public Works, may reduce the horizontal curve below two hundred fifty (250) feet.

In this case, the private right-of-way has been constructed with a temporary turnaround at the end of this property. The deflection angle of the private right-of-way is greater than 10 degrees and has not provided a horizontal curve radius of more than 250 ft. Therefore, a variance is required to approve the plat to increase the deflection angle from 10 degrees to 20 degrees without providing a horizontal curve.