The Los Angeles Department of Water and Power intends to build a new Reservoir Storage Facility at the Headworks spreading grounds, a 43-acre site adjacent to the Los Angeles River and between the City of Burbank and Griffith Park. In January 2006, the U.S. Environmental Protection Agency promulgated the Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule. These stringent water quality regulations resulted in the LADWP’s decision to remove some open reservoirs from service because they are open to the environment and subject to contamination. To comply with the aforementioned regulations, these reservoirs must either be covered, have their water treated prior to use, or be bypassed. Compliance with the regulations requires removal of the Silver Lake and Ivanhoe reservoirs from potable water supply service and construction of two underground reservoirs and a large-diameter pipeline located at the Headworks property, replacing the operational function of Silver Lake and Ivanhoe. The replacement storage will be below grade and consists of two water storage facilities, the Headworks East Reservoir and the Headworks West Reservoir. In order to take advantage of the renewable energy source developed by the flowing water, a four-megawatt hydroelectric plant will be built on site to generate power. After the completion of these projects, the ecosystem will be developed to establish environmental habitats and recreational facilities for community use. The project will ultimately consist of four (4) phases: 1) Phase I consists of the Headworks East Reservoir, Valve Vaults, Associated Site Piping and Grading, River Supply Conduit 1A East, and Tunnel Section. 2) Phase II consists of construction of the Headworks West Reservoir. 3) Phase III consists of the River Supply Conduit 1A West, Hydroelectric Power Plant and Regulating Station. 4) Phase IV consists of the Eco-System Restoration of the entire project site.

1. Construction
Phase I
Photo Gallery

2. Nov. 2013

3. Nov. 2013

4. Dec. 2014

5. Feb. 2014

6. March 2014

7. May 2014

8. June 2014

9. July 2014

10. Aug. 2014

11. Sep. 2014

12. Oct. 2014

13. Nov. 2014

14. Nov. 2014

15. Tunneling

16. Tunnel Liner Setting

17. Tunnel Eye

18. TBM Launch Pit

19. TBM Gantry

20. Subdrain Leak Monitoring

21. Setting the 96

22. Safety Standoff

23. Roof Deck Underside Epoxy Cap Removal

24. Outlet Vault Martinez Steel

25. Inlet Vault Walls

26. FRP Rebar Install

27. Diver

28. Deck Progress

29. Cooling Tube System

30. Column Progress

31. CMC Column Fabrication Crew

32. 78 Outlet Elbow

33. Julia Gray
jgray@wol-jv.com
(213) 239-6460