DITCH CLEANING. 1. Description: Ditch cleaning is removing and disposing of all foreign and slough material from roadside ditches to provide an unobstructed waterway conforming reasonably to previous line, grade and cross section.
DITCH CLEANING. Developer shall comply with all requirements set forth for drainage into any county ditch or other ditch through which water from Said Plat may drain, and shall make any necessary improvements or go through any necessary procedures to ensure compliance with any federal, state, county or Town requirements, all at Developer's expense.
DITCH CLEANING. The 3.7 miles of open irrigation ditches on Rice Livestock Property are prone to algae growth, which slows the conveyance of water and clogs the buried mainlines. The ditches need to be cleaned yearly to remove algae and repair breaches. Cleaning ditches on Xxxxxxx and Novy, Zenkus, Rice consists of mechanical cleaning with a backhoe once or twice per year. On the Novy, Zenkus, Rice Riparian Diversion, the head works of all the pipelines have grates that are cleaned daily to keep them functioning properly. Pipelines and the irrigation risers have to be fully opened to flush the pipes of sediment and vegetation annually, or as needed throughout the irrigation season. The Xxxxxxx diversion intake is maintained by a self-cleaning fish screen. Operation and maintenance can entail the use of heavy equipment at the point of diversion to remove spoils and deposited sediment to maintain channel design elevations. The Permittee is not involved in cleaning or operating the Novy, Zenkus, Rice diversion at this time but elects to maintain it in the future. Expected maintenance would include sediment and spoils removal near the POD and screen/intake, removal of aquatic and other debris as necessary and repairs after high water events. The Permittee has field checks (fields served by Xxxxxxx Ditch) and tail water prevention berms throughout that require rebuilding and re-grading using tractors and heavy equipment to maintain their function. This work occurs as needed but work is conducted annually. The Xxxxxxx fish screen is a self-cleaning cone screen. The Xxxxxxx screen has not experienced any sedimentation issues since installation; however, cleaning may be required in the future. The brushes generally need to be replaced on the cone screen and the Permittee will perform this task when needed. The Novy, Zenkus, Rice fish screen is currently maintained and cleaned by CDFW but may be maintained by Rice Livestock in the future if the screen is replaced. Rice Livestock has six distinct pastures where cattle graze. Cattle are rotated through the six pastures as part of pasture management based on scheduled rotation. There are no riparian pastures with open access to the Shasta River where grazing occurs. The management style the permittee intends to continue livestock exclusion of the riparian area and rotational grazing. Permittee has met with UC Extension Service about grazing practices. Current practices do include limited periods during the irrigation season where stu...
DITCH CLEANING. The conveyance ditch from the diversion to the place of use has significant aquatic plant growth; the Permittee cleans the vegetation out of the conveyance ditch at least annually with a weed mower. The open ditches are prone to excessive algae growth, which slows the conveyance of water. The Permittee cleans the ditches at least yearly to remove vegetation and fix breaches. The Permittee will continue to clean ditches until the Beneficial Management Activities are implemented and this is no longer necessary. Most of the ditches will be replaced with buried pipeline (see Section E.2.a) as a result of this Site Plan Agreement and then pipeline cleanouts will be opened monthly to flush any vegetation out to ensure proper conveyance in the pipe network. The flashboards on the existing diversion become blocked by beaver activity, making the flashboards challenging to remove. They then need to be periodically removed using heavy equipment to open the diversion. This will continue in the interim until the point of diversion is relocated (see Section E.2.b).
DITCH CLEANING. The open irrigation ditches are prone to vegetation growth, which slows the conveyance of water and clogs the buried mainlines. The ditches need to be mechanically cleaned at least yearly to remove vegetation and repair breaches, by using a backhoe. Irrigation ditch maintenance cleaning is required annually, at a minimum, and as needed throughout the irrigation season. Annual diversion dam construction: Permittee diverts water using hand piled cobble or gravel push-up dams to annually construct diversion impoundments to increase water surface elevation to allow for diversion. Enrolled Property’s diversions #1 and #2 typically require use of a back-hoe to construct impoundments that begin initial impoundment work as flows reduce during late spring. The impoundment at #1 is extended across a portion of the wetted channel as flows decline through the summer. Diversion structures at diversion points # 3, #4, #5 and #6 are typically constructed by hand unless winter high flows have caused significant alterations. At times tarps are used in combination with hand constructed or equipment constructed impoundments. The timing of when the diversion work is conducted is dependent on flow volume, need for irrigation and damage resulting from high flows during the previous winter. Diversions #1 and #2 require the POD to be opened by removing some larger rock and bedload material which is placed in the head of the diversion the previous fall to prevent high flows from entering the diversion. Initial diversion typically just requires removal of material from the head of the diversion ditch rather than impounding the stream. No impoundment is necessary until typically late May. Late May is also typically when hand work is done at diversion points #3, #4, #5 and #6. Fish passage is provided using an opening at least 1.0' wide with several inches of water passing through/over the diversion structure during base flows. Spring Creek system is primarily operated at a reservoir (diversion #202). The other diffuse sources of Spring Creek feed into established ditches and eventually drain to Parks Creek approximately .5 miles below the MWCD diversion from Parks Creek. Spring Creek system does not have a channel or annual scour but does connect to Parks Creek delivered via a grass dominated swale. The natural rock riffles at the diversion structures and the head gates can become clogged with debris or blackberries. They need to be periodically cleared mechanically to ensure proper...
DITCH CLEANING
