City of Frisco Engineering Standards

Engineering Standards
9. Differential grades on driveways shall not exceed ten percent (10%).
10. Any sidewalk access across a driveway shall meet all state and federal ADA requirements for
accessibility.
11. Residential driveways shall be prohibited:
a. Along a Type D, E, F, or G thoroughfare within one hundred feet (100’) of an
intersection with a Type A or Type B thoroughfare measured from the ROW line.
b. Along any part of a Type A, B, or C thoroughfare or a residential collector.
12. Residential driveways shall provide access to an alley or an eligible public street according to
the following restrictions:
a. A residential lot shall be allowed a maximum of one (1) driveway onto a public street,
except in the case of a circular driveway approved by the Director of Engineering
Services.
b. A residential driveway that provides access to a garage shall connect to an alley or shall
connect to a residential street that is at least thirty feet (30’) wide, face-to-face.
c. A residential lot bordered by an alley and a residential street that is at least thirty feet
(30’) wide shall provide a driveway to the alley if trash pick-up services cannot be easily
provided on the residential street, as determined by the Environmental Services Division.
Factors that will be considered include, but are not limited to, trash truck routing and
whether existing or planned homes on the block already connect to the alley.
d. A residential lot shall be prohibited from having multiple driveway connections in a
configuration that would create the possibility of a cut-through route between a public
street and an alley that do not intersect or between two public streets that do not intersect,
as determined by the Director of Engineering Services.
e. If a residential driveway is shared between two properties, the driveway shall be centered
on the common property line unless otherwise approved by the Director of Engineering
Services.
f. A residential driveway connecting to an alley shall not be located within twenty feet (20’)
of the ROW line of a public street so as to prevent the driveway from being located in the
alley taper
g. A residential driveway connecting to a public street shall be located so its upstream edge
is no closer than fifteen feet (15’) from the curb return of an upstream intersection and so
its downstream edge is no closer than five feet (5’) from the curb return of a downstream
intersection.
h. A residential driveway that changes in width as it extends onto the property shall do so
with a curved transition or an angled transition that does not exceed a taper of one to one
(1:1) within ten feet (10’) of the property line.
13. Driveways shall be located so that they meet the required spacing from other driveways and
streets, as described in Subsections F, G, and H below. The spacing and location of
driveways shall be related to existing driveways and streets and to future driveways and
Section 2 – Thoroughfare Design Requirements May 2012 Page 2-35