33 C.F.R. § 117.951 Arroyo Colorado River.
Title 33 - Navigation and Navigable Waters
The draw of the S106 highway bridge, mile 22.5 at Rio Hondo, shall open on signal if at least 12 hours notice is given.
Title 33: Navigation and Navigable Waters
PART 117—DRAWBRIDGE OPERATION REGULATIONS
Subpart B—Specific Requirements
Texas
§ 117.951 Arroyo Colorado River.

