33 C.F.R. § 117.381
Clearwater River
The draws of the Camas Prairie railroad bridge, mile 0.6 at Lewiston, shall open on signal if at least three hours notice is given to the Camas Prairie Railroad in Lewiston.
The draws of the Camas Prairie railroad bridge, mile 0.6 at Lewiston, shall open on signal if at least three hours notice is given to the Camas Prairie Railroad in Lewiston.