Projects > Ryer Island Wetland

5 CFS with 1.75 mm slots
ISI DP30-36 Propeller Cylinder
Year Installed:

Client: NRCS and Private Owner

Location: San Francisco Bay Delta

Background: An existing 2500 gpm siphon needed a fish protection screen as part of a wetland creation project. The screen needed to be self-cleaning; however, no power was available at the intake site.

Solution: ISI provided an "end-of-Pipe" cylindrical screen that bolted to the end of the intake pipe. The screen is cleaned with an internal and external brush system that operates when the diversion is flowing, turning an internal propeller drive unit. The unit has been functioning for the past four irrigation seasons with no interuption in service or external power required.