City of Frisco Engineering Standards

Engineering Standards
16. Sidewalk Escrow – When the delay of sidewalk construction is deemed appropriate by the
City due to future right-of-way improvements, escrow funds in lieu of the construction of
sidewalks may be approved by the Director of Engineering Services. Such funds shall be
escrowed with the City prior to final acceptance of the development. The escrow amount
shall be determined by the square footage of sidewalk to be constructed, as estimated by the
developer, and approved by the Director of Engineering Services.
17. Sidewalk Reimbursement – If the City constructs the sidewalk along any street before the
adjacent property develops, the owner of that property shall reimburse the City for its
construction costs when the property is to be subdivided or developed. This amount shall be
determined by multiplying the City’s square foot cost of constructing the sidewalk by the
square footage of sidewalk that is required along the property, subtracting out the square
footage of sidewalk the developer will remove or replace while developing the site, and
adding any cost associated with City-installed ADA access ramps, retaining walls, and
protective railing. The reimbursement shall be paid before any plat may be filed for the
property. If the property has already been platted or a plat is not required, the reimbursement
shall be paid prior to final acceptance or Certificate of Occupancy, whichever occurs first.
C. Sidewalks within Non-Residential and Multi-family Developments – All sidewalks within nonresidential
and multi-family developments shall be a minimum of four feet (4’) in width. At least
one ADA accessible sidewalk connection shall be made between each building and the public
sidewalk.
2.07 Public Right-of-Way Visibility Requirements
A. Adequate sight distance at the intersection of a thoroughfare and a proposed thoroughfare,
driveway, or alley must be ensured. This sight distance is provided through the use of Corner
Visibility Triangles and/or Sight Line Triangles. Corner Visibility Triangles are also known as
ROW Corner Clips and Sight Line Triangles are also known as Visibility, Access and
Maintenance Easements (VAMs). All intersection visibility requirements shall meet the
guidelines for sight triangles in AASHTO’s current A Policy on Geometric Design of Highways
and Streets.
1. Corner Visibility Triangles shall be provided on all corners of an intersection between two
thoroughfares or an intersection between an alley and a thoroughfare.
2. Sight Line Triangles shall be provided where a driveway, an alley, or a stop-controlled
thoroughfare intersects an uncontrolled thoroughfare and on any signalized intersection
approach where right turn on red operation is permitted.
3. No fence, wall, screen, sign, structure, foliage, hedge, tree, bush, shrub, berm, driveways,
parking, drive aisles, or any other item, either man-made or natural shall be erected, planted,
or maintained in a position that will obstruct or interfere with a driver’s clear line of sight
within a corner visibility triangle or a sight line triangle (i.e., a VAM).
4. The City has the right to prune or remove any vegetation within City right-of-way, including
within the corner visibility triangle, and within sight line triangle easements (including
VAMs), to abate a safety hazard and/or a nuisance.
Section 2 – Thoroughfare Design Requirements May 2012 Page 2-46