A. 
Purpose. The State of California has asserted broad authority over, and a statewide interest in, the entire field of regulating vehicles and traffic (as set forth in the California Vehicle Code, particularly Section 21). The State has established a set of prima facie speed limits applicable to various classes roadway types, districts and locations (see California Vehicle Code Sections 22348 through 22366). The State has expressly authorized the City to establish declared speed limits that differ from the prima facie speed limits set under state law, if, based on engineering and traffic surveys, the declared speed limit would facilitate the orderly movement of vehicles and traffic, and would be reasonable and safe (see California Vehicle Code Sections 22357, 22357.1, 22358, 22358.3, 22358.4, and 22360). The intent of this chapter is to implement the City's authority to establish declared speed limits when supported by engineering and traffic surveys.
B. 
Definitions. The following words and phrases, whenever used in this chapter, shall be construed as defined in this section:
"Declared speed limit"
means the speed limits for individual streets and roadway segments determined and declared by the City Council in accordance with this chapter, as authorized by the California Vehicle Code. The term "declared speed limit" (as used in this chapter) shall include the "declared prima facie speed limit" or "maximum speed limit" (as used in California Vehicle Code Section 22357), or the "prima facie speed limit" (as used in California Vehicle Code Sections 22358 22358.3 and 22358.4).
"Director"
means the Public Works Director, or a designee of the Public Works Director or the City Manager.
"Prima facie speed limits"
means the default speed limits for streets and highways established under California State Law, as generally set forth in the California Vehicle Code, particularly Sections 22348, et. seq., unless amended under this chapter.
(O2016-15, 11/15/16)
The City Council may determine and declare speed limits higher than the Prima Facie Speed Limits for any particular City street or roadway segment if the City Council determines by resolution, upon the basis of an engineering and traffic survey, that a speed greater than the Prima Facie Speed Limit is most appropriate to facilitate the orderly movement of vehicular traffic and is reasonable and safe. (See California Vehicle Code Sections 627, 22357, 22358 and 22358.4.)
(O2016-15, 11/15/16)
The City Council may determine and declare speed limits lower than the Prima Facie Speed Limits for any particular street or roadway segment if the City Council determines by resolution, upon the basis of an engineering and traffic survey, that the Prima Facie Speed Limit is more than is reasonable or safe, that the Declared Speed Limit is most appropriate to facilitate the orderly movement of traffic, and is reasonable and safe. (See California Vehicle Code Sections 627 and 22358 and 22358.4.)
(O2016-15, 11/15/16)
The City Council hereby determines and declares, based on a resolution adopted in accordance with this chapter, that the declared speed limits for the following streets or roadway segments shall be as set forth in this section, below. No person shall drive a vehicle at a speed greater than the declared speed limit for the street segment:
Street or Roadway Segment
Declared Speed Limit (mph)
Austin Way – Browns Valley Road to Scenic Drive
25
Beard Road – Pueblo Avenue to Trancas Street
30
Big Ranch Road – Trancas Street to City Limits (north)
45
Browns Valley Road – Partrick Road (west) to Redwood Road
35
Browns Valley Road – Partrick Road (west) to Partrick Road (east)
25
Browns Valley Road – Partrick Road (east) to Laurel Street
30
Buhman Avenue – City Limit (south) to Crestview Way
40
Buhman Avenue – Crestview Way to Browns Valley Road
30
Byway East – Wise Drive to Salvador Avenue
25
California Boulevard – Laurel Street to Second Street
25
California Boulevard – Second Street to Lincoln Avenue
30
California Boulevard – Lincoln Avenue to Pueblo Avenue
35
California Boulevard – Pueblo Avenue to Trancas Street
35
Central Avenue – Jefferson Street to Soscol Avenue
25
Clark Street – Silverado Trail to East Avenue
25
Coombs Street – Spruce Street to Division Street
25
Coombs Street – Division Street to Grigsby Court
20
Coombsville Road – Silverado Trail to Terrace Drive
35
Coombsville Road – Terrace Drive to City Limit (east)
35
Dry Creek Road – Redwood Road to Trower Avenue
40
Dry Creek Road – Trower Avenue to City Limit (north)
40
East Avenue – Silverado Trail (south) to East First Street
25
East Avenue – East First Street to Silverado Trail (north)
25
El Centro Avenue – Byway East to Jefferson Street
30
El Centro Avenue – Jefferson Street to City Limit (east)
30
Fifth Street – Coombs Street to Main Street
20
First Street – Laurel Street to California Boulevard
30
First Street – California Boulevard to Jefferson Street
30
First Street – Jefferson Street to Soscol Avenue
20
First Street – Soscol Avenue to Silverado Trail
25
First Street – Silverado Trail to East Avenue
25
Foothill Boulevard – Old Sonoma Road to Laurel Street
25
Foster Road – City Limit (south) to St Francis Circle (south)
40
Foster Road – St Francis (south) to West Imola Avenue
30
Foster Road – West Imola Avenue to Old Sonoma Road
25
Fourth Street – Third Street to Coombs Street
20
Franklin Street – Fourth Street to Pearl Street
20
Freeway Drive – Old Sonoma Road to Laurel Street
35
Freeway Drive – Laurel Street to First Street
35
Gasser Drive – Imola Avenue to Kansas Avenue
30
Gasser Drive – Kansas Avenue to Soscol Avenue
30
Golden Gate Drive – City Limit (south) to West Imola Avenue
30
Hagen Road – Silverado Trail to City Limit (east)
35
Imola Avenue – Soscol Avenue to Shurtleff Avenue
30
Imola Avenue – Shurtleff Avenue to east City Limit
35
Jefferson Street – Old Sonoma Road to Laurel Street
25
Jefferson Street – Laurel Street to Calistoga Avenue
25
Jefferson Street – Calistoga Avenue to Lincoln Avenue
30
Jefferson Street – Lincoln Avenue to Pueblo Avenue
30
Jefferson Street – Pueblo Avenue to Trancas Street
30
Jefferson Street – Trancas Street to Trower Avenue
30
Jefferson Street – Trower Avenue to Salvador Avenue
30
Kaiser Road – City Limit (west) to State Route 221
40
Kansas Avenue – Gasser Drive to Soscol Avenue
25
Kansas Avenue – Soscol Avenue to Shurtleff Avenue
25
Kilburn Avenue – Laurel Street to Freeway Drive
25
Laurel Street – First Street to Griggs Lane
25
Laurel Street – Griggs Lane to Freeway Drive
25
Laurel Street – California Boulevard to Jefferson Street
25
Laurel Street – Jefferson Street to Riverside Drive
25
Lincoln Avenue – Solano Avenue to Jefferson Street
30
Lincoln Avenue – Jefferson Street to Soscol Avenue
30
Lincoln Avenue – Soscol Avenue to Silverado Trail
35
Linda Vista Avenue – Lone Oak Avenue to West Pueblo Avenue
25
Linda Vista Avenue – West Pueblo Avenue to Redwood Road
25
Linda Vista Avenue – Redwood Road to Trower Avenue
30
Linda Vista Avenue – Trower Avenue to City Limit (north)
25
Lone Oak Avenue – Linda Vista Avenue to West Lincoln Avenue
25
Maher Street – Trower Avenue to Wine Country Avenue
25
Main Street – Fifth Street to Pearl Street
20
Main Street – Pearl Street to Jackson Street
25
Main Street – Jackson Street to Lincoln Avenue
25
Main Street – Lincoln Avenue to Pueblo Avenue
25
McKinstry Street – First Street to Soscol Avenue
30
Montecito Boulevard – East Avenue to Eastern Terminous
25
Napa Valley Corporate Drive – City Limit (south) to NV Corporate Way
40
Napa Valley Corporate Drive – NV Corporate Way to Kaiser Road
35
Napa Valley Corporate Way – NV Corporate Drive to State Route 221
35
Old Sonoma Road – City Limit (west) to Foster Road
35
Old Sonoma Road – Foster Road to Jefferson Street
30
Old Soscol Way – Soscol Avenue to Trancas Street
25
Orchard Avenue – City Limit (west) to Solano Avenue
30
Oxford Street – Carol Drive to Trower Avenue
25
Partrick Road – City Limit (west) to Browns Valley Road (west)
30
Partrick Road – Browns Valley Road (west) to Browns Valley Road (east)
35
Pearl Street – Franklin Street to Soscol Avenue
20
Pinewood Drive – Scenic Drive to West Pueblo Avenue
25
Pueblo Avenue – California Boulevard to Jefferson Street
25
Pueblo Avenue – Jefferson Street to Soscol Avenue
25
Redwood Road – City Limit (west) to Dry Creek Road
30
Redwood Road – Dry Creek Road to Solano Avenue
35
Robinson Lane – Browns Valley Road to Linda Vista Avenue
25
Salvador Avenue – State Route 29 to City Limit (east)
30
Saratoga Drive – Silverado Trail to Capitola Drive
25
Saratoga Drive – Capitola Drive to Terrace Drive
25
Scenic Drive – Browns Valley Road to Austin Way
25
Scenic Drive – Austin Way to Larkin Way
25
Second Street – California Boulevard to Jefferson Street
30
Second Street – Jefferson Street to Main Street
20
Seminary Street – Pine Street to Oak Street
25
Seminary Street – Oak Street to Clay Street
20
Seminary Street – Clay Street to Hayes Street
25
Shetler Avenue – Soscol Avenue to Parrish Road
30
Shetler Avenue – Parrish Road to Sommer Street
25
Shurtleff Avenue – Imola Avenue to Terrace Drive
25
Sierra Avenue – State Route 29 to Jefferson Street
25
Solano Avenue – Lincoln Avenue to Redwood Road
35
Solano Avenue – Redwood Road to Trower Avenue
35
Solano Avenue – Trower Avenue to Salvador Avenue
40
Solano Avenue – Salvador Avenue to City Limit (north)
40
Soscol Avenue – Silverado Trail to Third Street
35
Soscol Avenue – Third Street to Lincoln Avenue
35
Soscol Avenue – Lincoln Avenue to Pueblo Avenue
40
Soscol Avenue – Pueblo Avenue to Trancas Street
40
South Coombs Street – Imola Avenue to Spruce Street
30
South Freeway Drive – Imola Avenue to Old Sonoma Road
35
South Jefferson Street – City Limit (south) to Imola Avenue
30
South Jefferson Street – Imola Avenue to Old Sonoma Road
25
South Terrace Drive – Imola Avenue to Cayetano Drive
25
Terrace Drive – Shurtleff Avenue to Coombsville Road
30
Third Street – California Boulevard to Jefferson Street
30
Third Street – Jefferson Street to Soscol Avenue
20
Third Street – Soscol Avenue to Silverado Trail
30
Thompson Avenue – City Limit (south) to Browns Valley Road
25
Trancas Street – Solano Avenue to Jefferson Street
30
Trancas Street – Jefferson Street to Big Ranch Road
30
Trancas Street – Big Ranch Road to City Limit (east)
35
Trower Avenue – Dry Creek Road to Linda Vista Avenue
35
Trower Avenue – Linda Vista Avenue to Solano Avenue
30
Trower Avenue – State Route 29 to Jefferson Street
30
Trower Avenue – Jefferson Street to City Limit (east)
25
Vallejo Street – Seminary Street to Soscol Avenue
25
Villa Lane – Trancas Street to Northern Terminous
25
Walnut Street – Old Sonoma Road to Laurel Street
25
West Imola Avenue – Foster Road to State Route 29
25
West Lincoln Avenue – Lone Oak Avenue to Solano Avenue
30
West Pueblo Avenue – Redwood Road to Linda Vista Avenue
25
West Pueblo Avenue – Linda Vista Avenue to Solano Avenue
30
Westview Drive – Browns Valley Road to Redwood Road
25
Wine County Avenue – Linda Vista Avenue to State Route 29
30
Yajome Street – Pearl Street to Lincoln Avenue
25
Yajome Street – Lincoln Avenue to Pueblo Avenue
25
(O2016-15, 11/15/16; O2018-003, 1/16/18; O2019-002, 1/15/19; O2022-002, 2/1/22; O2023-001, 2/21/23)