Laserfiche WebLink
<br />1/ <br /> <br />. <br /> <br />,!~ <br /> <br />. <br /> <br />The town is interested in extending the open ditch along Vega Street. They iwould like to <br />extend the ditch to Culebra Creek, which would require a siphon or other stmcture to pass <br />under the People's Ditch. The extended ditch would then continue through prifate property. <br />The town would like the ditch extension to be incorporated into the feasibility study. <br /> <br />Recommendations and Actions <br />The CWCB should continue with a project feasibility study that would identify a mitigation plan <br />to help alleviate sub-surface drainage problems within the southern portions of th~ town of San <br />Luis. The feasibility study would result in a project report, preliminary design clrawings, and <br />preliminary cost estimates for the construction of the mitigation project. The aJ:tivities to be <br />addressed in the study would include the following items: <br /> <br />. Determine the alignment and approximate depths of a subdrain system that would help to <br />mitigate groundwater problems. <br /> <br />. Size the perforated and non-perforated subdrain pipes using information and estimated <br />groundwater hydrology characteristics from the previous study. <br /> <br />. Investigate alternative mitigation solutions including sub drain outlet 10catiOFls and lateral <br />drain locations. <br /> <br />. Formulate maintenance activities which may include regular cleaning of the open ditch which <br />.,: runs north to south along the west edge of the Vega. I <br /> <br />. Investigate the rehabilitation or closing of the Montez irrigation ditch which runs through <br />town. <br /> <br />." <br />" <br /> <br />. Investigate the possibility and ramifications of capping all existing artesian wells within the <br />town. <br /> <br />. Investigate the feasibility of placing a non-perforated pipe within the Vega that would canry <br />flows from the outfall of the existing subdrain system to the open ditch that ruils along Vega <br />Street. <br /> <br />. Investigate the feasibility of extending the open ditch along Vega Street southward to Culebra <br />Creek. <br /> <br />. Prepare conceptual design drawings and estimate construction costs for the selected <br />alternative. <br /> <br />. Prepare a simple report documenting the results of the study and preliminary design. <br /> <br />twb c:\seca\projects\san-luis\trip-s.doc <br /> <br />3 <br />