Thread: Grade sloping towards retaining wall

Is there slope requirements for grade along retaining walls. Seems like common sense

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Drainage is an important component that should be incorporated into the design and construction.

R401.3 Drainage.

Surface drainage shall be diverted to a
storm sewer conveyance or other approved point of collection
so as to not create a hazard. Lots shall be graded to drain surface
water away from foundation walls. The grade shall fall a minimum of
6 inches (152 mm)within the first 10 feet (3048 mm).

Exception:

Where lot lines, walls, slopes or other physical
barriers prohibit 6 inches (152 mm) of fall within 10 feet
(3048 mm), the final grade shall slope away from the foundation
at a minimum slope of 5 percent and the water shall
be directed to drains or swales to ensure drainage away from
the structure.Swales shall be sloped a minimum of 2 percent
when located within 10 feet (3048 mm) of the building
foundation. Impervious surfaces within 10 feet (3048 mm)
of the building foundation shall be sloped a minimum of 2
percent away from the building.

R403.3.3 Drainage.

Final grade shall be sloped in accordance
with Section R401.3. In other than Group I Soils, as
detailed in Table R405.1, gravel or crushed stone beneath
horizontal insulation below ground shall drain to daylight or
into an approved sewer system.