Contra Costa County |
Ordinance Code |
Title 9. SUBDIVISIONS |
Division 914. DRAINAGE |
Chapter 914-6. OPEN CHANNELS AND DITCHES |
§ 914-6.210. Lined channels — Outlet velocity.
Latest version.
Where the outlet velocity from a lined channel exceeds the maximum allowable velocity for the earth channel receiving the flow, suitable protective works shall be constructed to dissipate the flow. At a minimum, the outlet end of the lined channel shall be protected by a cutoff wall and the placement of loose riprap. The protective works shall be those specified by a licensed engineer and shall be based on engineering calculations of allowable flow velocities.
(Ords. 89-28, 78-5).
Article 914-6.4. Roadside Ditches