Ashton / Dorking Storm Drain Improvement Project


SCH Number
Public Agency
Sacramento County
Document Title
Ashton / Dorking Storm Drain Improvement Project
Document Type
NOE - Notice of Exemption
Document Description
The project consists of upgrading the existing storm drainage system to provide for improved storm water conveyance and alleviate flooding in the area along Ashton Drive from American River Drive to Morris Way. The project's eastern terminus is the intersection of Ashton Drive and Morris Way and its western terminus is approximately 100 ft. north of the intersection of American River Drive and Ashton Drive. The project has two components. First, a combination of 302 linear feet of new and upsized 18" pipe, three new manholes and three new drain inlets will be installed between 4431 and 4471 Ashton Drive. Second, a combination of 1,790 linear feet of new and upsized 18" & 36" pipe, two new drain inlets and six new manholes between 4366 Dorking Court and then south along Ashton Drive to approximately 100 ft. north of the intersection between Ashton Drive and American River Drive. There is also 146 linear feet of laterals being added to the two components. Improvements to the pipe and inlet system will better convey the runoff during minor and major storm events and will reduce the chronic localized yard, street, and structure flooding that the local residents are currently experiencing. The use of increased pipe sizes and additional drainage inlets will effectively convey flow as well as serve as in-line detention storage. This attenuation is designed to prevent flooding downstream.

Contact Information

Joyce Horizumi
Agency Name
Sacramento County Dept. of Environmental Review
Contact Types
Lead/Public Agency


Other Location Info
Arden Arcade

Notice of Exemption

Exempt Status
Statutory Exemption
Type, Section or Code
Section 15282(l)
Reasons for Exemption
The project is statutorily exempt because the new pipeline is less than one mile in length and constructed in a public right-of-way.

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 or via phone at (916) 445-0613.

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