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Scone of Work <br />1 Mile Rehabititatiora of County Road J.8 <br />Along North Diversion of the San Francisco Acequia <br />An acequia is a water based community that revolves around delivery of the sacred medium <br />water. Acequias are utilized by surface water right users that are designed on a long lot - <br />"vara/extension" -system. This system ~~vas originally founded by the Moors and expanded to <br />Spain in the first century AD. This method of property subdivision and water use was then <br />brought to the area during the Spanish ('onquest. The direct translation of acequia is "water <br />carrier or barrier," as explained above ace~~uias are more than a ditch to our community. But, we <br />will refer to the physical water carrier or ditch as an acequia. <br />Acequias in Costilla County that are par~illel to county roads experience increased amounts of <br />erosion and road construction runoff. In ~~reas where these acequias are perpendicular to gullies <br />and arroyos there are major sedimentation problems such as clogging and restricted water flow <br />which result in increased maintenance assts, decreased profits for small acequia farmers and <br />various forms of flooding. <br />Presently, the San Francisco Acequia is ~;uffering significantly from high sedimentation due to <br />county road construction runoff. There is also increased runoff because of the very erosive and <br />silty soils in the area. Many deep arroyos exist that go into the road easement area carrying <br />extensive natural baring sediment and then cross under the road through many undersized and <br />under-designed culverts. In bad storm situations, these culverts are inefficient, become clogged <br />with sediment causing much of the water goes over the road causing which also increases the <br />erosion and sediment entering the acequia system. In order to reduce the amount of sediment in <br />the San Francisco Acequia from the natural erosion and road runoff, a surface hydrology design <br />must be developed and implemented. The following scope of work is an estimated financial plan <br />for this endeavor. <br />Thus far, the stake holders in this project are the Colorado Acequia Association, Colorado <br />Watershed Protection Fund, Costilla County Road & Bridge and Costilla County Conservancy <br />District. <br />