333 S. Meridian, Puyallup, WA 98371 - 253-841-4321

City of Puyallup

Clarks Creek Elodea Management

Management of the overgrown elodea in Clarks Creek has been on-going for more than 20 years in Puyallup. In 2012 a task force comprised of staff, Council, citizens, regulatory agencies, and other organizations worked together to develop agreeable solutions to the problem. The goal was to find sustainable solutions that would reduce the overall presence of elodea and sediment in Clarks Creek, improving the health of the creek.

Beginning in 2013, Puyallup implemented the solutions identified by the Task Force and is now working toward a future for Clarks Creek that is not impacted by elodea and sediment loads. Read about the Clarks Creek Task Force process and projects underway by Puyallup's Stormwater Section.

 2014 Daily Progress Updates

In-water work began on 06/16/2014. Daily updates on the progress and amount of elodea removed are posted below. To view the work areas, click on the map linked in the left hand column.

In-water Extension Granted

WDFW granted a request to extend the in-water work window by one week, as allowed by a minor modification in the HPA permit. This additional week will allow the contractor time to complete the contract work, which has been slowed by equipment failures now corrected with new pumps in the DASH boats.

(updated 07/28/2014)

Running totals:
     Total area cleared to-date: 11,710 LF
     Total elodea removed: 22,675 bags

  1. 06/16 - Contractor began in-water work near the 12th Ave SW Bridge.
    Area cleared: 200 linear feet (LF)
    Bags of elodea removed: 150
  2. 06/17 - Continued work between 12th and 7th Ave SW bridges
    Area cleared: 560 LF
    Bags of elodea: 375
  3. 06/18 - Completed work up to check point #1
    Area cleared: 500 LF
    Bags of elodea: 275
  4. 6/19 - Worked in area #2
    Area cleared: 200 LF
    Bags of elodea: 225
  5. 6/20 - Worked in area #2
    Area cleared: 250 LF
    Bags of elodea: 325
  6. 6/23 - Worked in area #2
    Area cleared: 350 LF
    Bags of elodea: 525
  7. 6/24 - Worked in area #2
    Area cleared: 700 LF
    Bags of elodea: 725 bags
  8. 6/25 - Finished area #2
    Area cleared: 450 LF
    Bags of elodea: 675
  9. 6/26 - Worked in area #3
    Area cleared: 550 LF
    Bags of elodea: 850
  10. 6/27 - Worked in area #3
    Area cleared: 400 LF
    Bags of elodea: 550
  11. 6/30 - Worked in area #3
    Area cleared: 500 LF
    Bags of elodea: 525
  12. 7/1 - Worked in area #4 
    Area cleared: 300 LF 
    Bags of elodea: 450
  13.  7/2 - Worked in area #4
    Area cleared: 500 LF
    Bags of elodea: 500
  14. 7/3 - Worked in Area #4
    Area cleared: 400 LF 
    Bags of elodea: 750
  15. 7/7 - Worked in Area #4/#5
    Area cleared: 600 LF 
    Bags of elodea: 750
  16. 7/8 - Worked in Area #5 
    Area cleared: 550 LF
    Bags of elodea: 800
  17. 7/9 - Worked in Area #5
    Area cleared: 350 LF 
    Bags of Elodea: 900
  18. 7/10 - Worked in Area #5 
    Area cleared: 300 LF 
    Bags of elodea: 1,100 
  19. 7/11 - Worked in Area #5
    Area cleared: 550 LF 
    Bags of elodea: 1,200 
  20. 7/14 - Finished in Area #5
    Area cleared: 400 LF
    Bags of elodea: 900
  21. 7/15 - Worked in Area #6
    Area cleared: 350 LF
    Bags of elodea: 850
  22. 7/16 - Worked in Area #6
    Area cleared: 400 LF
    Bags of elodea: 1,125
  23. 7/17 - Worked in Area #6
    Area cleared: 250 LF
    Bags of elodea: 1,025
  24. 7/18 - Worked in Area #6
    Area cleared: 150 LF
    Bags of elodea: 1,250
  25. 7/21 - Worked in Area #6
    Area cleared: 250 LF
    Bags of elodea: 1,100
  26. 7/22 - Worked in Area #6
    Area cleared: 400 LF
    Bags of elodea: 1,275
  27. 7/23 - Worked in Area #6
    Area cleared: 250 LF
    Bags of elodea: 1,100
  28. 7/24 - Worked in Area #6
    Area cleared: 300 LF
    Bags of elodea: 825
  29. 7/25 - Worked in Area #6
    Area cleared: 500 LF
    Bags of elodea: 1,300
    7/26 - Worked in Area #6
    Area cleared: 250 LF
    Bags of elodea: 600

 

2014 Clarks Creek Elodea Management

The in-water work window for 2014 is June 16-August 1. With a successful 2013 Diver-Assisted Suction Harvesting (DASH) clearing of the entire project area, the 2014 management will be completed with the DASH method only, as outlined in the project's HPA permit. 

Clarks Creek In-water Projects

DASH Removal

Diver-assisted Suction Harvesting (DASH) was identified by the 2012 Elodea Task Force as the main method for elodea removal starting in 2013 onward. In this process, divers enter the water from pontoon-type boats, using surface-supplied air. The divers hand-pull the elodea from the stream, and feed it into a suction hose. The plant material is suctioned to the surface of the water, into mesh bags located on the boat. When several bags are full, they are each transported to the shore, and removed from the project site. This process reduces the fragmentation of the elodea, and completely removes the plant from the stream so it cannot re-plant itself, or grow back.

This process is modeled after similar successful DASH projects in Thurston County, WA and New York.

Permit applications for the 2013-2018 DASH project included:

  • Shoreline Substantial Development Permit (City of Puyallup)
  • State Environmental Policy Act project review (City of Puyallup)
  • Hydraulic Project Approval, HPA (WA Fish & Wildlife)

Also planned for the 2013 project was removal of accumulated rocks under the 56th Street E and Stewart Ave E bridges. It is believed these rocks were pushed into the water over the years by vandals, creating a restriction to the creek flow at those locations. Read more about the 2013 projects here: 2013 Clarks Creek Elodea Management.

Demonstration Sediment Removal Project

This demonstration project was designed to show the potential effectiveness of removing accumulated sediments in a 400-foot stretch of Clarks Creek using a hydraulic dredge method. The demonstration area for the project was identified near the 12th Ave SW bridge. Approximately 400 feet south of the bridge the stream it was previously known to have an existing, natural rock bottom. The project was to begin at this location, working downstream, to expand Salmon-rearing habitat.

Read more about this project development here: Sediment Removal Demonstration Project.

Sediment Removal Demonstration Project

Please visit the project-specific page for the Sediment Removal Demonstration Project.