PROJECT INFORMATION:
The West Side Canal Company requested a Level II feasibility study to provide recommendations
and cost estimates for rehabilitation of the Jons Drop and the 4-mile flume within the canal
system. The Jons Drop is a chronic maintenance problem on the canal and is currently
experiencing bank failure that may, if allowed to continue, disrupt water flow to irrigators below
the drop. The 4-mile flume has reached its useful life expectancy and is in need of overhaul or
replacement.
It was recommended that Jons Drop be rehabilitated by installing a HDPE pipe drop with a riprap
energy dissipation pool. This drop will direct the flow away from the erosion area and to an area
where flow can be controlled. It is recommended that 4-mile flume be replaced with an inverted
siphon pipe.
RECOMMENDED LEGISLATIVE ACTION:
The WWDC recommends the project be incorporated in the Rehabilitation Program and advanced
to Level III construction with a proposed budget of $142,000. The appropriation will be 50%
loan and 50% grant. The loan will be at 6% interest for a term of 20 years.