City of Frisco Engineering Standards

Engineering Standards
C. Spread Footing Retaining Wall plans shall also include the following:
1. If TxDOT retaining wall standards are used, provide the panel design designation (for
example, LC-10-32) for each wall panel corresponding to the appropriate cast-in-place spread
footing wall standard sheet. The designation includes a reference to the controlling standard
drawing, design height, and panel width.
2. Location of expansion and allowable construction joints (assuming 32’ panels, every third
joint is typically designated as an expansion joint).
3. Set bottom of wall (top of footing) horizontal and stepped to meet minimum embedment
depth criteria. Distance from one step to the next is typically greater than 12”. Provide bottom
of wall elevations for all panels.
4. Include the appropriate TxDOT standard sheets pertaining to cast-in-place spread footing
walls if applicable. Otherwise provide typical section details including a cross section with
dimensions and reinforcement layout and callouts.
5. If TxDOT standard sheets pertaining to cast-in-place spread footing walls are not applicable
to the design, a custom structural wall design shall be provided. The general notes shall
specifically identify the applicable concrete specification, the requirement that no service
loads shall be imposed until after the concrete has reached its specified minimum
compressive strength, and that shop drawing submittals shall be required for fabrication,
bending, and placement of concrete reinforcement.
D. Screening Wall plans shall include the following information (in addition to the information
included under 9.09A):
1. The title shall include the legal name of the property on which the wall is being constructed;
2. A plan view of the wall showing its location, limits, and stationing;
3. Wall material specification;
4. Mortar specification (if applicable).
5. A profile of the wall including grades for the top of the concrete mow strip, adjacent top of
curb, sidewalk and finished floor of proposed and/or existing adjacent slabs;
6. Elevation view of a typical column;
7. Elevation view of the wall;
8. Mow-strip detail;
9. Drainage clearance under wall (uniform 2”);
10. Steel tensile strength;
11. Concrete compressive strength; and
12. Wind load calculations
Section 9 – Structural Design Requirements May 2012 Page 9-12