Yolo Central Canal Culvert Replacement at County Road 88
Summary
SCH Number
2005028204
Public Agency
Yolo County Flood Control and Water Conservation District
Document Title
Yolo Central Canal Culvert Replacement at County Road 88
Document Type
NOE - Notice of Exemption
Received
Posted
2/14/2005
Document Description
The proposed project would replace the existing culvert on the Yolo Central Canal beneath County Road 88. This replacement is intended to restore safety to vehicular traffic and increase capacity to more efficiently serve existing service demands of farmers in the facility's current service area encompassing approximately 7,995 acres.
The proposed project is needed because the existing corrugated metal culvert under County Road 88 collapsed. Temporary provisions to maintain flow in the canal and allow traffic movement on CR 88 have been installed, but a permanent facility is needed in order to ensure continued safe operation of the facility. In addition, the proposed project would, at the request of the County, lengthen the passage of the canal under CR 88 in order to facilitate the turning of trucks on CR 88.
The proposed project would replace the canal's collapsed corrugated metal pipe culvert with a reinforced concrete box culvert and, as mentioned, would be lengthened to better accommodate truck traffic in the area. The capacity of the culvert prior to its collapse was approximately 120 cfs. Construction of the new concrete box culvert would increase this capacity to 150 cfs. It is important to note that the proposed increase in capacity will improve the efficiency and speed of delivery of water supply to existing farmers downstream of the facility, but it will not result in an expansion of developed farmlands, acquisition of new customers, or an increase in the facility's current service area.
Construction of the proposed project will involve the demolition of the existing culvert and reinforced concrete headwalls and the installation of pre-cast concrete box sections and the construction of new reinforced concrete headwalls. The roadway section will be replaced over the box culvert to match existing grade lines.
Contact Information
Name
Tim O'Halloran
Agency Name
Yolo County Flood Control And Water Conservation District
Contact Types
Lead/Public Agency
Phone
Location
Counties
Yolo
Other Location Info
Near Madison
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15302
Reasons for Exemption
Project consists of the ". . . replacement or reconstruction of existing structures and facilities where the new structure will be located on the same site as the structure replaced and will have substantially the same purpose and capacity as the structure replaced . . ."
While the proposed project would result in an increase in the capacity of the canal to pass water beneath the roadway, the project would involve a negligible increase in water use within the area served by the canal.
As all activities will occur within the District's right-of-way and in areas previously developed or disturbed by construction or maintenance activities, and because construction activities would be relatively limited and of short duration, the project would result in negligible impact on air quality, noise levels, water quality, erosion potential, cultural resources, and biological resources.
It is anticipated the proposed project would improve the visual character of the area by replacing temporary and damaged facilities. In addition people would not be exposed to floods as a result of the project, no increase in population, housing or economic changes would occur as no growth-inducement would result from the project, no destruction of agricultural land would occur, and no increase in demand for public utilities or services such as police, fire, schools, parks, water, wastewater, or solid waste would result from the proposed project. While the size of the box culvert will be greater than the previous facility, there will be no expansion of any existing use served by the facility caused by the project. The project is not intended to increase the volume of water delivery to existing customers.
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.