Antioch Municipal Code Art. 15 Special Speed Zones

The City Council, on the basis of engineering and traffic investigations and surveys, has determined that the speeds permitted by state laws, as applicable to certain city streets, are different than those necessary for safe operation thereon under the conditions found to exist on such streets. It is hereby declared that the prima facie speed limit shall be as set forth in this article on those streets, or parts of streets, within the city when signs giving notice thereof have been erected upon such streets.

('66 Code, § 4-5.1501) (Ord. 317-C-S, passed 6-10-76; Am. Ord. 649-C-S, passed 10-23-86; Am. Ord. 674-C-S, passed 6-11-87; Am. Ord. 683-C-S, passed 8-27-87; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023)

The speed limit shall be 15 miles per hour on the following streets or parts of streets:

(A) Parker Lane;

(B) Noia Avenue;

(C) Wisner Drive; and

(D) Roelling Lane from Wisner Drive to Noia Avenue.

('66 Code, § 4-5.1501.1) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 20 miles per hour on the following streets or parts of streets: (none).

('66 Code, § 4-5.1501.2) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023)

The speed limit shall be 25 miles per hour on the following streets or parts of streets: All city streets except those designated otherwise in this article.

('66 Code, § 4-5.1501.3) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 30 miles per hour on the following streets or parts of streets:

(A) A Street from Wilbur Avenue to State Route 4;

(B) East Tregallas Road from Lone Tree Way to Garrow Drive;

(C) East 18th Street from A Street to Cavallo Road;

(D) Delta Fair Boulevard from Belle Drive to Buchanan Road;

(E) Sycamore Drive from the east boundary of Somersville Road to the west boundary of L Street;

(F) Willow Avenue from East 18th Street to the north boundary of Oakley Road;

(G) Oakley Road from the west boundary of Willow Avenue to the east boundary of Viera Avenue;

(H) Viera Avenue from East 18th Street to its southerly terminus;

(I) Buchanan Road from Somersville Road to Contra Loma Boulevard;

(J) San Jose Drive from Delta Fair Boulevard to Buchanan Road;

(K) Somersville Road from State Route 4 to Buchanan Road;

(L) Country Hills Drive from Lone Tree Way to Deer Valley Way;

(M) Country Hills Drive from Hillcrest Avenue to Laurel Road;

(N) Mokelumne Drive from Lone Tree Way to Prewett Ranch Road;

(O) Wildflower Drive from Hillcrest Avenue to Deer Valley Road;

(P) Mt. Hamilton Drive from Golf Course Road to Dallas Ranch Road;

(Q) Sand Creek Road north of Lone Tree Way;

(R) Vista Grande Drive;

(S) Wilson Street;

(T) Auto Center Drive from West 4th Street to State Route 4; and

(U) Canada Valley Road.

('66 Code, § 4-5.1501.4) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 788-C-S, passed 9-13-90; Am. Ord. 877-C-S, passed 3-10-94; Am. Ord. 2027-C-S, passed 5-26-09; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2105-C-S, passed 8-11-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 35 miles per hour on the following streets or parts of streets:

(A) Lone Tree Way from State Route 4 to James Donlon Boulevard;

(B) Cavallo Road from Wilbur Avenue to 18th Street;

(C) East Tregallas Road from Garrow Drive to Hillcrest Avenue;

(D) Sunset Drive from Cavallo Road to Hillcrest Avenue;

(E) East 18th Street from Cavallo Road to Hillcrest Avenue;

(F) Hillcrest Avenue from East 18th Street to East Tregallas Road;

(G) West 10th Street from Somersville Road to L Street;

(H) L Street from West 10th Street to the Freeway;

(I) Contra Loma Boulevard from Buchanan Road to James Donlon Boulevard;

(J) Buchanan Road from Somersville Road to Delta Fair Boulevard;

(K) Delta Fair Boulevard from the west city limits to Belle Drive;

(L) Somersville Road from north city limits to south city limits;

(M) Davison Drive from Lone Tree Way to Hillcrest Avenue;

(N) Verne Roberts Circle;

(O) Golf Course Road;

(P) Prewett Ranch Road from Dallas Ranch Road to Deer Valley Road;

(Q) Frederickson Lane;

(R) West 4th Street from Somersville Road to L Street; and

(S) Larkspur Drive from Hillcrest Avenue to Bluebell Circle.

('66 Code, § 4-5.1501.5) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 788-C-S, passed 9-13-90; Am. Ord. 854-C-S, passed 9-10-92; Am. Ord. 877-C-S, passed 3-10-94; Am. Ord. 2027-C-S, passed 5-29-09; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 40 miles per hour on the following streets or parts of streets:

(A) Wilbur Avenue from A Street to 1,600 feet east of Minaker Drive;

(B) Lone Tree Way from Putnam Street to James Donlon Boulevard;

(C) James Donlon Boulevard from Somersville Road to Lone Tree Way;

(D) Hillcrest Avenue from East 18th Street to Lone Tree Way;

(E) Laurel Road; and

(F) Wild Horse Road.

('66 Code, § 4-5.1501.6) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 788-C-S, passed 9-13-90; Am. Ord. 877-C-S, passed 3-10-94; Am. Ord. 2027-C-S, passed 5-26-09; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 45 miles per hour on the following streets or parts of streets:

(A) Dallas Ranch Road;

(B) East 18th Street from Hillcrest Avenue to the east city limits;

(C) Buchanan Road from the west city limits to Somersville Road;

(D) Oakley Road from Willow Avenue to the east city limits;

(E) Lone Tree Way from James Donlon Boulevard to the east city limits;

(F) Deer Valley Road;

(G) Somersville Road south of Buchanan Road;

(H) Wilbur Avenue from 1,600 feet east of Minaker to the easterly city limits;

(I) Heidorn Ranch Road; and

(J) Sand Creek Road.

('66 Code, § 4-5.1501.7) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 788-C-S, passed 9-13-90; Am. Ord. 877-C-S, passed 3-10-94; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 50 miles per hour on the following streets or parts of streets: West 10th Street from the west city limits to Somersville Road.

('66 Code, § 4-5.1501.8) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The speed limit shall be 55 miles per hour on the following streets or parts of streets: (none).

('66 Code, § 4-5.1501.9) (Ord. 683-C-S, passed 8-27-87; Am. Ord. 788-C-S, passed 9-13-90; Am. Ord. 877-C-S, passed 3-10-94; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023) Penalty, see § 4-5.1601

The City Traffic Engineer is directed to have signs erected upon the streets at appropriate locations giving notice of the limits established by § 4-5.1501 of this article.

('66 Code, § 4-5.1502) (Ord. 317-C-S, passed 6-10-76; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023)

The City Traffic Engineer is authorized to regulate the timing of traffic signals so as to permit the movement of traffic in an orderly and safe manner at speeds slightly at variance from speeds otherwise applicable within the district or intersections and shall erect appropriate signs giving notice thereof.

(‘66 Code, § 4-5.1503) (Ord. 317-C-S, passed 6-10-76; Am. Ord. 2100-C-S, passed 3-24-15; Am. Ord. 2217-C-S, passed 6-28-22; Am. Ord. 2230-C-S, passed 8-22-2023)