2016 Speed Limits Survey 2023 Extension 10 years (Sept. 11, 2023) Jeff Ave, Ave 50-52 segmentWWI L L DA N extending
your
Engineering reach
September 11, 2023
County of Riverside Superior Courts
Larson Justice Center
46-200 Oasis Street
Indio, CA 92201
SUBJECT: 2016 Engineering and Traffic Survey Extension
City of La Quinta
Dear Larson Justice Center / County of Riverside Superior Courts,
California Vehicle Code Sections 40801 and 40802 require Engineering and Traffic Surveys (ETS) to
establish or revise prima facie speed limits on certain streets within a local jurisdiction before law
enforcement can utilize radar or other electronic speed measuring devices for speed enforcement. These
surveys must be updated every five, seven, or ten years to ensure the speeds reflect current conditions as
dictated by the California Vehicle Code. The surveys can be extended from 5 to 7 years provided the
City's police officer(s) have completed a 24-hour radar operator course [CVC 40802(c)(2)(B)(i)(I)].
Additionally, some surveys may be extended to ten years if the City Traffic Engineer certifies there have
been no significant changes to the roadway segment(s) or traffic conditions [CVC 40802(c)(2)(B)(i)(II)].
These provisions assure that posted speed limits are kept reasonably current.
This letter is to certify that I am the licensed and duly designated Traffic Engineer for the City of La
Quinta. I have evaluated one street segment that was part of the 2016 ETS and determined no
significant changes have occurred, including, but not limited to, changes in adjoining property or land
use, roadway width or traffic volume for these street segments. Therefore, based on the above reasons,
the most recent Engineering and Traffic Survey may be extended up to 10 years from the effective date
of the particular ETS conducted for the following street segment:
• Jefferson Avenue from Avenue 50 to Avenue 52
50 mph
If you have any questions, you may contact Mr. Bryan McKinney, Public Works Director at (760) 777-
7045 or myself, at (562) 364-8526.
Jeffrey Lau, P.E., T.E.
Traffic Engineer
Cc: City Attorney
City Clerk
Riverside County Sheriff s Department
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