California Code, Government Code - GOV § 40401

(a) Establish, build, and repair bridges.

(b) Acquire by purchase or otherwise land for squares, parks, playgrounds, and places within the city and improve, equip, and maintain them.

(c) Establish, lay out, alter, keep open, improve, and repair streets, sidewalks, alleys, tunnels, and other public highways, and drain, sprinkle, oil, and light them.

(d) Remove all obstructions from them.

(e) Establish grades for them.

(f) Grade, pave, gravel, and curb all or part of them.

(g) Construct gutters, culverts, sidewalks, and crosswalks in all or on any part of them.

(h) Cause shade trees to be planted, set out, and cultivated in them.

(i) Generally manage and control all such highways, tunnels, and places.