Kan. Admin. Regs. § 5-40-22
Each dam constructed shall meet or exceed the design requirements specified in the table in this regulation. The minimum top of the dam elevation shall be the maximum water surface elevation determined by routing the design storm specified in the following table, using the methodology specified in K.A.R. 5-40-30 through K.A.R. 5-40-33, through the reservoir and the dam's spillways, plus the minimum freeboard shown in the following table. The minimum floor width of the open-channel spillway shall be the minimum floor width shown in the following table.
Dam Hazard Precipitation Minimum Minimum floor
size class for design freeboard width of open-
class storm in feet channel
spillway in feet
1 A 2% chance 1 20
B 0.25 PMP 2
C 0.40 PMP 3
2 A 1% chance 2 30
B 0.25 PMP 2
C 0.40 PMP 3
3 A 1% chance 3 40
B 0.30 PMP 3
C 0.40 PMP 3
4 A 0.25 PMP 3 40
B 0.30 PMP 3
C 0.40 PMP 3
Kan. Admin. Regs. § 5-40-22