DESCRIPTION
The Kittitas County Conservation District used this grant to build a pipeline to consolidate four diversions on Manastash Creek into one. This project installed a 1.6 mile pipeline system that will deliver irrigation water from the enlarged Manastash Water Ditch Association diversion to the Hatfield, Reed and Anderson ditches. The pipeline eliminates the need to build fish screens and fish passage facilities at the Hatfield Ditch, Reed Ditch and Anderson diversions. The diversion structures and headgates at Hatfield, Reed and Anderson will be removed, completing the Manastash Creek Restoration Project, which has been addressing unscreened surface water diversions and fish passage barriers on the creek. The Kittitas County Conservation District contributed $1,622,392 from federal, state and other grants.
The Kittitas County Conservation District completed work to address two unscreened diversions at the Hatfield Ditch and Red Ditch diversions on lower Manastash Creek. The completed work is part of a series of sub-projects being conducted as part of the overall "Manastash Creek Restoration Project."
The Kittitas County Conservation District completed work to address two unscreened diversions at the Hatfield Ditch and Reed Ditch diversions on lower Manastash Creek near Ellensburg. The completed work is part of a series of sub-projects being conducted as part of the overall "Manastash Creek Restoration Project". The Manastash Creek Restoration Project is in the process of addressing seven unscreened surface water diversions and six fish passage barriers on Manastash Creek. The project was developed between 2001 and 2007 by the Manastash Creek Steering Committee. Prior funding from BPA and Ecology was used to implement construction projects, including screening and passage facilities for four of the seven unscreened diversions and three of the six passage barriers. The Hatfield Ditch, Reed Ditch and Anderson Ditch diversions constituted the remaining unscreened diversions and fish passage barriers, including the most significant barrier at the Reed Ditch diversion.
The original scope of this SRFB grant agreement included the Hatfield Ditch, Reed Ditch and Anderson Ditch diversions. In lieu of building new and individual fish screen and passage facilities at each diversion, the original scope was to 1) relocate the points of diversion of all water users from their historic sites to the MWDA/Consolidated Diversion where a large fish screen facility was constructed in 2009/2010, 2) construct a "Consolidated Pipeline" to convey diverted irrigation water from the "MWDA/Consolidated Diversion" to the existing delivery ditches for each of the three diversions, and 3) decommission and remove the old structures at the Hatfield, Reed and Anderson diversions. Two changes were made to the original scope of work. First, decommissioning and removal of the old structures at the Hatfield, Reed and Anderson diversions were removed from the scope of work in 2012 because the decommissioning was no longer feasible within the time frame of the grant due to project delays. Although the decommissioning and removal work was taken out of the scope of work, those activities are either completed or planned for completion in 2015 with alternate funding sources.
The second change to the original scope of work was not to include the Anderson Ditch water rights in the Consolidated Pipeline. This change was necessary due to the construction of a companion pipeline project implemented by the US Bureau of Reclamation (USBR) which made it physically impossible to deliver the Anderson water as planned. The USBR companion pipeline project involved conversion of the Kittitas Reclamation District (KRD) Lateral 13.8 from an earthen ditch to a pressurized pipeline. In the construction of this pipeline, the USBR removed the existing Anderson Diversion structure, thereby removing the unscreened diversion and partial fish passage barrier. Several of the Anderson Ditch water right holders are contemplating the sale of their creek water rights due to the construction of the USBR pipeline which now delivers pressurized water to their properties. All of these water right holders have dual rights (Manastash Creek and KRD) and the new KRD system creates efficiencies such that they may not require both creek and KRD water to satisfy crop needs. Some of the water right holders are contemplating both the sale or lease of their creek water right, as well as a possible new smaller diversion with compliant fish screen and fish passage structures in Manastash Creek nearer their property.
This project benefits Mid-Columbia summer steelhead and spring chinook by eliminating two unscreened diversions, as well as setting the stage for removal of the largest barrier (Reed Diversion) remaining on Manastash Creek. In 2011, a female steelhead was witnessed by KCCD staff and consulting engineer attempting to jump the Reed Diversion. In 2014, a radio tagged steelhead was track by WDFW staff to the Reed Diversion, but presumably unable to cross the diversion, it turned around and left the creek. A PIT tag detector installed and brought online in early 2014 at stream mile 1.4 (downstream of diversions associated with this grant) documented 6-8 adult steelhead through May 2014. This site will soon be online and available at and the site code is LMC (Lower Manastash Creek).