Marks Sess13 102309

Construction Methods for Folsom Lake Dike Modification,[object Object],Presented by,[object Object],Matthew D. Marks,[object Object],Magnus Pacific Corporation,[object Object],Roseville, California,[object Object]

Overview,[object Object],Project Name - Dike 5 Embankment Modifications,[object Object],Engineer/Designer - Bureau of Reclamation’s Safety of Dams (SOD) Program,[object Object],Prime Contractor – DD-M Crane and Rigging,[object Object],Contract Value - $3,204,790,[object Object],Project Location - Located on the north shore of Folsom Reservoir near the intersection of Auburn-Folsom Boulevard and Eureka Road in Granite Bay,[object Object],Construction Schedule - Construction performed between September 2008 and February 2009,[object Object]

Area Map,[object Object],FOLSOM,[object Object], DAM,[object Object],FOLSOM,[object Object], LAKE,[object Object],DIKE 5,[object Object],SACRAMENTO,[object Object],AREA,[object Object]

Project Summary,[object Object],Scope of Work,[object Object],Project involved the partial removal of the downstream face of the existing dike to construct new sand and gravel drains to control internal erosion,[object Object],Change Orders,[object Object],No major change orders; several quantity variations (overruns and underruns),[object Object],By the Numbers,[object Object],40,000 CY excavation for existing downstream face,[object Object],3,500 CY excavation for new toe drain and out fall trench,[object Object],Installed 1,500 LF of 15” HDPE toe drain pipe,[object Object],Installed 18,000 CY (28,000 TN) of fine filter (sand) and 2,500 CY (4,000 TN) of coarse filter (gravel),[object Object],85,000 CY replacement of stockpiled and onsite borrow soils,[object Object]

Scope of Work,[object Object],Site preparations including recreation trail detour,[object Object],Stripping top soil and excavation of downstream face from 2.25H:1V to 2H:1V slope,[object Object],Excavation of toe drain and outfall trench,[object Object],Installation of toe drain and outfall piping and manhole,[object Object],Toe drain backfill using coarse filter (gravel) and chimney drain using fine filter (sand),[object Object],Reconstruct downstream face to 2.5H:1V slope using stockpiled and onsite borrow materials,[object Object],Replace topsoil and site restoration,[object Object]

Schedule,[object Object],Began site preparations in mid August 2008,[object Object],Restricted to no heavy construction work until after Labor Day 2008,[object Object],Excavation work approximately 4 weeks at average rate of 3,000 CY per day,[object Object],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,[object Object],Performed backfill and restoration work through first half of rainy season,[object Object],Completed work in February 2009 (Contractual Completion Date in March 2009),[object Object]

Embankment Fill Diagram,[object Object],~ EL. 480,[object Object],2.5 h,[object Object],1 v,[object Object],1 v,[object Object],2 h,[object Object],~ EL. 380,[object Object],Typical Embankment Fill Detail with Toe Drain,[object Object]

Toe Drain Diagram,[object Object],Typical Toe Drain Detail with Pipe,[object Object]

Conventional Equipment,[object Object],Excavation & Hauling Equipment,[object Object],PC 400 Excavator,[object Object],PC 300 Excavator,[object Object],CAT D9 Dozer (rock ripping),[object Object],35 TN Articulated Haul Trucks (3 EA),[object Object],Komatsu 450 Front End Loader,[object Object],Backfill & Grading Equipment,[object Object],CAT D6 Dozer (2 EA – GPS),[object Object],CAT 815 Compactor,[object Object],CAT 140 Motor Grader,[object Object],48” Smooth Drum Roller (2 EA),[object Object]

Specialized Equipment,[object Object],Material Delivery System,[object Object],Drive Over End Dump Truck Unloader,[object Object],30 TN Surge Hopper/Conveyor,[object Object],Total 70 TN Onsite Storage Capacity,[object Object],Direct Load Conveyor Trucks,[object Object]

Specialized Equipment,[object Object],Conveyor Trucks,[object Object],CAD (Conveyored Aggregate Delivery),[object Object],Ability to place materials with accuracy and reduced waste,[object Object],Output approximately 250 to 500 TN / DY,[object Object]

Construction Materials,[object Object],Shell Fill,[object Object],Onsite Material (Decomposed Granite),[object Object],Existing Dike Embankment,[object Object],Borrow Site within Folsom Reservoir,[object Object],3” Minus,[object Object],Fine Filter,[object Object],Imported Material,[object Object],Clean Washed Sand,[object Object],3/8” Minus,[object Object],0 – 3% Passing No. 200 Sieve,[object Object],Coarse Filter,[object Object],Imported Material,[object Object],Clean Washed Gravel,[object Object],1” Minus,[object Object],0 – 5% Passing No. 8 Sieve,[object Object]

Pre-Construction,[object Object],Existing Downstream Face,[object Object]

Pre-Construction,[object Object],Existing Top of Slope,[object Object]

Downstream Face Excavation,[object Object],Excavated Face and Toe Drain (and view of Blanket Drain),[object Object]

Toe Drain Excavation,[object Object],Toe Drain Excavation and Dewatering,[object Object]

Borrow Site Excavation,[object Object],Stockpiled Shell Fill in Folsom Reservoir,[object Object]

Toe Drain,[object Object],Compaction Testing Fine Filter Material,[object Object]

Toe Drain,[object Object],Toe Drain Backfill with Fine and Coarse Filter Material,[object Object]

Shell Fill,[object Object],Shell Fill Placement on New Downstream Face,[object Object]

Shell Fill,[object Object],Shell Fill Placement and Compaction,[object Object]

Shell Fill,[object Object],Fine Filter and Shell Fill Placement,[object Object]

Shell Fill,[object Object],Shell Fill Grading (and Material Delivery System),[object Object]

“The Big Picture”,[object Object],Fine Filter and Shell Fill Placement,[object Object]

Chimney Drain,[object Object],Fine Filter Placement with Conveyor Truck,[object Object]

Chimney Drain,[object Object],Fine Filter Placement (Non-compacted Loose Lift),[object Object]

Chimney Drain,[object Object],Fine Filter Placement Near Top of Downstream Face,[object Object]

Chimney Drain,[object Object],New Blanket Drain on Upper Slope,[object Object]

Finishing,[object Object],Excavator Pulling Up Slope Near Top of Dike,[object Object]

Finishing,[object Object],Top of Chimney Drain and Shell Fill Placement,[object Object]

Finishing,[object Object],Final Gravel Road on Crest of Dike,[object Object]

Finishing,[object Object],Finish Slope Grading and Topsoil (Dredge Tailings) Placement,[object Object]

Finishing ,[object Object],Finished Slope (In Progress),[object Object]

Finishing,[object Object],Finished Grade and Hydroseeding,[object Object]

Project Highlights,[object Object],Excavation on face of dike and rock ripping,[object Object],Excavated with CAT D6 GPS Dozers pushing down slope; load out with Komatsu PC400 Excavator and Articulated Haul Trucks,[object Object],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 ,[object Object],Placement of coarse and fine filter material without cross blending or waste,[object Object],Material Delivery System replaced managing stockpiles and waste on ground,[object Object],Conveyor Trucks allowed precise placement of coarse and fine filter with less than 1% waste,[object Object],Achieved placement of 28,000 TN of fine filter without any failing tests for No. 200 sieve; material tested in place after compaction,[object Object],Determination of proper compaction equipment and methods,[object Object],Test sections on fine filter to determine proper equipment to minimize break down of material,[object Object],Moisture conditioning fine filter and shell fill,[object Object]

Project Highlights (cont.),[object Object],Managing site logistics, equipment access and coordination,[object Object],Heavy equipment traffic patterns; one way traffic through work areas,[object Object],Working in limited work space; steep slopes,[object Object],Weather related impacts and site storm water control,[object Object],Most backfill work performed during rainy season,[object Object],Installation and maintenance of site SWPPP controls,[object Object],Effects of rain on site conditions,[object Object],Construction survey control for asbuilt and payment,[object Object],Utilized GPS machine control on CAT D6 Dozer for excavation and backfill; achieved specified tolerances,[object Object],Maintained full time surveyor onsite to survey asbuilt conditions,[object Object],Organization of data and volume calculations,[object Object],Health and Safety,[object Object],Completed the project with no injury or accidents,[object Object],Minor incident involving propane powered fence post pounder; caught fire due to a manufacturer defect; product was recalled,[object Object]

Questions,[object Object],Any questions?,[object Object],DD-M Crane & Rigging,[object Object],2900 Main St., Suite 103,[object Object],Alameda, CA 94501,[object Object],(510) 769-8707,[object Object],(510) 769-8711 fax,[object Object],P.O. Box 520/160 River Rd,[object Object],Rio Vista, CA 94571,[object Object],(707) 374-2000,[object Object],(707) 374-2728 fax,[object Object],Denise Maurer - President,[object Object],Magnus Pacific Corporation,[object Object],3001 Lava Ridge Court, Suite 240,[object Object],Roseville, CA 95661,[object Object],(916) 233-1139,[object Object],(916) 783-0215 fax,[object Object],Louay Owaidat - President,[object Object]

Marks Sess13 102309

Marks Sess13 102309

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Marks Sess13 102309