10.56.020 LOWERING SPEED LIMIT IN CERTAIN ZONES.
   It is determined upon the basis of an engineering and traffic investigation that the speed permitted by state law outside of business and residence districts as applicable upon the following streets is greater than is reasonable or safe under the conditions found to exist upon such streets, and the prima facie speed limit shall be as set forth on those streets or part of streets designated as follows when signs are erected giving notice of such:
 
 
Name of Street or Portion Affected
Declared Prima Facie Speed Limit
Pinole Valley Road between seven hundred feet north of Ramona Street and Tennent Avenue
25
Pinole Valley Road between south city limit and northerly intersection with Simas Avenue
25
Appian Way between San Pablo Avenue and city limits
35
Pinon Avenue between San Pablo Avenue and end of Pinon Avenue
25
Fitzgerald Drive between Appian Way and Fitzgerald Drive/Interstate 80 Interchange
30
 
(Ord. 97-104 § § 3, 4, 1997; Ord. 588 § 1, 1996; Ord. 432 § 2 (part), 1982).