Construction Methods for Folsom Lake Dike Modification<br />Presented by<br />Matthew D. Marks<br />Magnus Pacific Corpora...
Overview<br />Project Name - Dike 5 Embankment Modifications<br />Engineer/Designer - Bureau of Reclamation’s Safety of Da...
Area Map<br />FOLSOM<br /> DAM<br />FOLSOM<br /> LAKE<br />DIKE 5<br />SACRAMENTO<br />AREA<br />
Project Summary<br />Scope of Work<br />Project involved the partial removal of the downstream face of the existing dike t...
Scope of Work<br />Site preparations including recreation trail detour<br />Stripping top soil and excavation of downstrea...
Schedule<br />Began site preparations in mid August 2008<br />Restricted to no heavy construction work until after Labor D...
Embankment Fill Diagram<br />~ EL. 480<br />2.5 h<br />1 v<br />1 v<br />2 h<br />~ EL. 380<br />Typical Embankment Fill D...
Toe Drain Diagram<br />Typical Toe Drain Detail with Pipe<br />
Conventional Equipment<br />Excavation & Hauling Equipment<br />PC 400 Excavator<br />PC 300 Excavator<br />CAT D9 Dozer (...
Specialized Equipment<br />Material Delivery System<br />Drive Over End Dump Truck Unloader<br />30 TN Surge Hopper/Convey...
Specialized Equipment<br />Conveyor Trucks<br />CAD (Conveyored Aggregate Delivery)<br />Ability to place materials with a...
Construction Materials<br />Shell Fill<br />Onsite Material (Decomposed Granite)<br />Existing Dike Embankment<br />Borrow...
Pre-Construction<br />Existing Downstream Face<br />
Pre-Construction<br />Existing Top of Slope<br />
Downstream Face Excavation<br />Excavated Face and Toe Drain (and view of Blanket Drain)<br />
Toe Drain Excavation<br />Toe Drain Excavation and Dewatering<br />
Borrow Site Excavation<br />Stockpiled Shell Fill in Folsom Reservoir<br />
Toe Drain<br />Compaction Testing Fine Filter Material<br />
Toe Drain<br />Toe Drain Backfill with Fine and Coarse Filter Material<br />
Shell Fill<br />Shell Fill Placement on New Downstream Face<br />
Shell Fill<br />Shell Fill Placement and Compaction<br />
Shell Fill<br />Fine Filter and Shell Fill Placement<br />
Shell Fill<br />Shell Fill Grading (and Material Delivery System)<br />
“The Big Picture”<br />Fine Filter and Shell Fill Placement<br />
Chimney Drain<br />Fine Filter Placement with Conveyor Truck<br />
Chimney Drain<br />Fine Filter Placement (Non-compacted Loose Lift)<br />
Chimney Drain<br />Fine Filter Placement Near Top of Downstream Face<br />
Chimney Drain<br />New Blanket Drain on Upper Slope<br />
Finishing<br />Excavator Pulling Up Slope Near Top of Dike<br />
Finishing<br />Top of Chimney Drain and Shell Fill Placement<br />
Finishing<br />Final Gravel Road on Crest of Dike<br />
Finishing<br />Finish Slope Grading and Topsoil (Dredge Tailings) Placement<br />
Finishing <br />Finished Slope (In Progress)<br />
Finishing<br />Finished Grade and Hydroseeding<br />
Project Highlights<br />Excavation on face of dike and rock ripping<br />Excavated with CAT D6 GPS Dozers pushing down slo...
Project Highlights (cont.)<br />Managing site logistics, equipment access and coordination<br />Heavy equipment traffic pa...
Questions<br />Any questions?<br />DD-M Crane & Rigging<br />2900 Main St., Suite 103<br />Alameda, CA 94501<br />(510) 76...
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Marks Sess13 102309

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Marks Sess13 102309

  1. 1. Construction Methods for Folsom Lake Dike Modification<br />Presented by<br />Matthew D. Marks<br />Magnus Pacific Corporation<br />Roseville, California<br />
  2. 2. Overview<br />Project Name - Dike 5 Embankment Modifications<br />Engineer/Designer - Bureau of Reclamation’s Safety of Dams (SOD) Program<br />Prime Contractor – DD-M Crane and Rigging<br />Contract Value - $3,204,790<br />Project Location - Located on the north shore of Folsom Reservoir near the intersection of Auburn-Folsom Boulevard and Eureka Road in Granite Bay<br />Construction Schedule - Construction performed between September 2008 and February 2009<br />
  3. 3. Area Map<br />FOLSOM<br /> DAM<br />FOLSOM<br /> LAKE<br />DIKE 5<br />SACRAMENTO<br />AREA<br />
  4. 4. Project Summary<br />Scope of Work<br />Project involved the partial removal of the downstream face of the existing dike to construct new sand and gravel drains to control internal erosion<br />Change Orders<br />No major change orders; several quantity variations (overruns and underruns)<br />By the Numbers<br />40,000 CY excavation for existing downstream face<br />3,500 CY excavation for new toe drain and out fall trench<br />Installed 1,500 LF of 15” HDPE toe drain pipe<br />Installed 18,000 CY (28,000 TN) of fine filter (sand) and 2,500 CY (4,000 TN) of coarse filter (gravel)<br />85,000 CY replacement of stockpiled and onsite borrow soils<br />
  5. 5. Scope of Work<br />Site preparations including recreation trail detour<br />Stripping top soil and excavation of downstream face from 2.25H:1V to 2H:1V slope<br />Excavation of toe drain and outfall trench<br />Installation of toe drain and outfall piping and manhole<br />Toe drain backfill using coarse filter (gravel) and chimney drain using fine filter (sand)<br />Reconstruct downstream face to 2.5H:1V slope using stockpiled and onsite borrow materials<br />Replace topsoil and site restoration<br />
  6. 6. Schedule<br />Began site preparations in mid August 2008<br />Restricted to no heavy construction work until after Labor Day 2008<br />Excavation work approximately 4 weeks at average rate of 3,000 CY per day<br />Concurrent placement of backfill materials including toe drain pipe, fine filter, coarse filter, and shell fill (average 100 TN coarse filter, 500 TN fine filter and 2,000 CY shell fill per day) over 3 to 4 month period<br />Performed backfill and restoration work through first half of rainy season<br />Completed work in February 2009 (Contractual Completion Date in March 2009)<br />
  7. 7. Embankment Fill Diagram<br />~ EL. 480<br />2.5 h<br />1 v<br />1 v<br />2 h<br />~ EL. 380<br />Typical Embankment Fill Detail with Toe Drain<br />
  8. 8. Toe Drain Diagram<br />Typical Toe Drain Detail with Pipe<br />
  9. 9. Conventional Equipment<br />Excavation & Hauling Equipment<br />PC 400 Excavator<br />PC 300 Excavator<br />CAT D9 Dozer (rock ripping)<br />35 TN Articulated Haul Trucks (3 EA)<br />Komatsu 450 Front End Loader<br />Backfill & Grading Equipment<br />CAT D6 Dozer (2 EA – GPS)<br />CAT 815 Compactor<br />CAT 140 Motor Grader<br />48” Smooth Drum Roller (2 EA)<br />
  10. 10. Specialized Equipment<br />Material Delivery System<br />Drive Over End Dump Truck Unloader<br />30 TN Surge Hopper/Conveyor<br />Total 70 TN Onsite Storage Capacity<br />Direct Load Conveyor Trucks<br />
  11. 11. Specialized Equipment<br />Conveyor Trucks<br />CAD (Conveyored Aggregate Delivery)<br />Ability to place materials with accuracy and reduced waste<br />Output approximately 250 to 500 TN / DY<br />
  12. 12. Construction Materials<br />Shell Fill<br />Onsite Material (Decomposed Granite)<br />Existing Dike Embankment<br />Borrow Site within Folsom Reservoir<br />3” Minus<br />Fine Filter<br />Imported Material<br />Clean Washed Sand<br />3/8” Minus<br />0 – 3% Passing No. 200 Sieve<br />Coarse Filter<br />Imported Material<br />Clean Washed Gravel<br />1” Minus<br />0 – 5% Passing No. 8 Sieve<br />
  13. 13. Pre-Construction<br />Existing Downstream Face<br />
  14. 14. Pre-Construction<br />Existing Top of Slope<br />
  15. 15. Downstream Face Excavation<br />Excavated Face and Toe Drain (and view of Blanket Drain)<br />
  16. 16. Toe Drain Excavation<br />Toe Drain Excavation and Dewatering<br />
  17. 17. Borrow Site Excavation<br />Stockpiled Shell Fill in Folsom Reservoir<br />
  18. 18. Toe Drain<br />Compaction Testing Fine Filter Material<br />
  19. 19. Toe Drain<br />Toe Drain Backfill with Fine and Coarse Filter Material<br />
  20. 20. Shell Fill<br />Shell Fill Placement on New Downstream Face<br />
  21. 21. Shell Fill<br />Shell Fill Placement and Compaction<br />
  22. 22. Shell Fill<br />Fine Filter and Shell Fill Placement<br />
  23. 23. Shell Fill<br />Shell Fill Grading (and Material Delivery System)<br />
  24. 24. “The Big Picture”<br />Fine Filter and Shell Fill Placement<br />
  25. 25. Chimney Drain<br />Fine Filter Placement with Conveyor Truck<br />
  26. 26. Chimney Drain<br />Fine Filter Placement (Non-compacted Loose Lift)<br />
  27. 27. Chimney Drain<br />Fine Filter Placement Near Top of Downstream Face<br />
  28. 28. Chimney Drain<br />New Blanket Drain on Upper Slope<br />
  29. 29. Finishing<br />Excavator Pulling Up Slope Near Top of Dike<br />
  30. 30. Finishing<br />Top of Chimney Drain and Shell Fill Placement<br />
  31. 31. Finishing<br />Final Gravel Road on Crest of Dike<br />
  32. 32. Finishing<br />Finish Slope Grading and Topsoil (Dredge Tailings) Placement<br />
  33. 33. Finishing <br />Finished Slope (In Progress)<br />
  34. 34. Finishing<br />Finished Grade and Hydroseeding<br />
  35. 35. Project Highlights<br />Excavation on face of dike and rock ripping<br />Excavated with CAT D6 GPS Dozers pushing down slope; load out with Komatsu PC400 Excavator and Articulated Haul Trucks<br />Rock ripping in Borrow Site and Toe Drain using CAT D9 Dozer with rippers; intensely weathered granitic rock with uniaxial compressive strength ranging from about 330 to 850 psi <br />Placement of coarse and fine filter material without cross blending or waste<br />Material Delivery System replaced managing stockpiles and waste on ground<br />Conveyor Trucks allowed precise placement of coarse and fine filter with less than 1% waste<br />Achieved placement of 28,000 TN of fine filter without any failing tests for No. 200 sieve; material tested in place after compaction<br />Determination of proper compaction equipment and methods<br />Test sections on fine filter to determine proper equipment to minimize break down of material<br />Moisture conditioning fine filter and shell fill<br />
  36. 36. Project Highlights (cont.)<br />Managing site logistics, equipment access and coordination<br />Heavy equipment traffic patterns; one way traffic through work areas<br />Working in limited work space; steep slopes<br />Weather related impacts and site storm water control<br />Most backfill work performed during rainy season<br />Installation and maintenance of site SWPPP controls<br />Effects of rain on site conditions<br />Construction survey control for asbuilt and payment<br />Utilized GPS machine control on CAT D6 Dozer for excavation and backfill; achieved specified tolerances<br />Maintained full time surveyor onsite to survey asbuilt conditions<br />Organization of data and volume calculations<br />Health and Safety<br />Completed the project with no injury or accidents<br />Minor incident involving propane powered fence post pounder; caught fire due to a manufacturer defect; product was recalled<br />
  37. 37. Questions<br />Any questions?<br />DD-M Crane & Rigging<br />2900 Main St., Suite 103<br />Alameda, CA 94501<br />(510) 769-8707<br />(510) 769-8711 fax<br />P.O. Box 520/160 River Rd<br />Rio Vista, CA 94571<br />(707) 374-2000<br />(707) 374-2728 fax<br />Denise Maurer - President<br />Magnus Pacific Corporation<br />3001 Lava Ridge Court, Suite 240<br />Roseville, CA 95661<br />(916) 233-1139<br />(916) 783-0215 fax<br />Louay Owaidat - President<br />

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