Kan. Admin. Regs. § 5-40-52 - Stilling basins
(a) For each new
dam, for each primary spillway conduit replacement, and for each existing dam
for which the chief engineer determines that it is necessary to protect the
integrity of the embankment, each primary spillway conduit with a
cross-sectional area in excess of 1.75 square feet shall discharge into one of
the following:
(1) A constructed stilling
basin below the downstream toe of the dam; or
(2) any other constructed works designed to
dissipate energy and prevent erosion.
(b) If a stilling basin is required or
constructed, the stilling basin shall be designed to dissipate the energy of
the water exiting the conduit so that the stilling basin discharges water to
the receiving channel without causing excessive erosion and the stilling basin
itself is not damaged by full conduit flow.
(c) The invert of the outlet conduit that
discharges into a stilling basin shall be located at least one foot above the
tailwater elevation in the stilling basin when water is flowing through the
primary spillway at the maximum rate of discharge during the design storm.
Notes
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