117.189—Sacramento River.
(a)
The draws of each bridge from Isleton to American River junction shall open on signal from May 1 through October 31 from 6 a.m. to 10 p.m. and from November 1 through April 30 from 9 a.m. to 5 p.m. At all other times, the draws shall open on signal if at least four hours notice is given to the drawtender at the Rio Vista bridge across the Sacramento River, mile 12.8.
(b)
The draws of the California Department of Transportation bridges, mile 90.1 at Knights Landing, and mile 135.5 at Meridian, shall open on signal if at least 12 hours notice is given to the California Department of Transportation at Marysville.