City of Frisco Engineering Standards

Engineering Standards
Version 6/19/12
13.
E. Gravity Retaining Walls plans shall also include the following:
1. Wall height, including batter requirements;
2. Wall material specification;
3. Base embedment depth and width requirements, including key depth if applicable;
4. Wall thickness at bottom and top of wall;
5. Mortared zone requirements (if applicable), including zone thickness and the specification to
mortar on all sides and no voids;
6. Non-mortared zone requirements (if applicable), including zone thickness and the
specification that stones must fit tightly; and
7. Clay cap, including material specification and dimension requirements.
F. Calculations pertinent to the design of any and all walls shall be submitted with the construction
drawings when required by the City.
G. All wall construction plans and specifications submitted to the City for review must include a
permit application submittal.
9.10 Construction Inspection and Certification
A. A permit is required for the construction of any wall as defined in these Engineering Standards.
B. Third-party inspections shall be performed during construction, and reports provided to the City.
The inspections and reports shall be performed at the following stages of construction (at a
minimum):
a. Sub-base preparation geotechnical testing
b. Pre-pour / sub-base / footing:
i. Drilled shaft drilling and concrete placement (if applicable); and
ii. Forming of footing, beam, placement of reinforcement (if applicable)
c. Wall construction;
d. Backfill placement - geotechnical testing
e. Drainage system construction (if applicable); and
f. Final completion
C. A third-party shall certify wall construction inspections were performed at the prescribed stages
of construction in accordance with Section 9.10.B. The inspection reports and final certificate of
compliance shall be submitted to the City and include the following:
Section 9 – Structural Design Requirements May 2012 Page 9-13