This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. The gabions are placed on filter fabric as detailed in the plans and specifications. Use 5 to 7 st Slope Protection consists of rock, concrete, or concreted rock or slope paving ROCK SLOPE PROTECTION ROCK SHOULD DEMONSTRATE Stability: Angular shapes may be used on any planed slope Durability: Resist degradation and have a durability of 52 minimum (Caltrans) Consistency: Product is the same load after load. Protection involves constructing a heavy mass of smaller rocks bound together by concrete. Weight will vary based on density of rock available for the project. Slope Protection consists of rock, concrete, or concreted rock or slope paving, ROCK SLOPE PROTECTION ROCK SHOULD DEMONSTRATE, THE PLACEMENT METHODS DESIGNATED BY CALTRANS, ADVANTAGES OF USING RIP RAP OR STONE PROTECTION FROM WILSON QUARRY (AROMAS), Make certain of the Product RequiredProject Service Requirements, Specifying Agency (Caltrans, Green Book, Army Corp or Other), Special Provisions addressing additional specifications, Certification Required (Submittals) Caltrans, Army Corps, other agency or engineer, Quantity Required (Specific GravityConversion Tons to Cubic Yards), Product Availability (Available when required, can handle Daily Shipping Requirements), The Reputation of your Supplier and their Products & Services, 100% Crushed Granite (Provides Superior Stability and Durability), Many different Rip Rap types available:All Caltrans Classes and Sizes, High Daily Production and Shipping Capacity (Can Handle Large & Small Jobs), Graniterock can provide delivery to your jobsite if desired. Chapter 4: Construction Details, Section 72: Slope Protection, Direction of flow and angle of impingement at various water stages, Capability of adjacent soil types to resist erosion from wash and eddy currents. Soil Stabilization Matting - Slope Application, Clear Water Pipe Through Silt Fence/Super Silt Fence, Temporary Stone Outlet Structure (1 of 2, PDF only), Temporary Stone Outlet Structure (2 of 2, PDF only), Temporary Gabion Outlet Structure (1 of 2, PDF only), Temporary Gabion Outlet Structure (2 of 2, PDF only), Standard Inlet Protection (1 of 2, PDF only), Standard Inlet Protection (2 of 2, PDF only), Combination Inlet Protection (1 of 2, PDF only), Combination Inlet Protection (2 of 2, PDF only), Pipe Outlet Sediment Trap ST-I (1 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (2 of 3, PDF only), Pipe Outlet Sediment Trap ST-I (3 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (1 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (2 of 3, PDF only), Stone/Riprap Outlet Sediment Trap ST-II (3 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (1 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (2 of 3, PDF only), Riprap Outlet Sediment Trap ST-III (3 of 3, PDF only), Concentric Trash Rack and Anti-Vortex Device (1 of 2, PDF only), Concentric Trash Rack and Anti-Vortex Device (2 of 2, PDF only), Types of Couplers for Corrugated Steel Pipe, Sediment Basin Schematic - Horiz. The plans will designate which type applies at each location. endobj | Conditions of Use | Privacy Policy Ensure that the contractor performs concrete finishing as specified and that the slope paving is cured by one of the specified methods. Observe construction to ensure the contractor does the placing, finishing, and curing as specified. Please enable JavaScript in your browser. endobj YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. The equilibrium soil-to-geotextile system that allows for adequate movement of a liquidin the plane of the geotextile over the service lifetime of the application. Standard contract items and descriptions for Caltrans projects. com routes make excellent running trails for serious runners and casual joggers, alike. Copyright Maryland.gov. These products were developed to meet specific agency (DOTs, MTOs, etc.) Erosion prevention practices - Riprap - Minnesota Stormwater Manual :t4NV]j{/mtqF*sx[%M 5%(/%(Z-F|[atK5[~{a~EwDCV:/#K)f~7*RsAnnJa>Jg-m^>\V7EOG3o?nGYIFze/l( I!&VXo]mm#7I0:EK7_LFwek Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. Enter the item description of the code you wish to search for: Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. Caltrans Riprap Sizes - Plainwater You may be trying to access this site from a secured browser on the server. The bid item list and plans will specify which type of slope protection is to be performed. Of the various types of instability problems, foundation failures are the most serious and most common. <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> If the fabric is joined by stitched seams, stitch with contrasting colored yarn. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. Other Names Rock Slope Protection. Click it again to reverse the order. Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. When slope protection is paid by volume, review the plans and quantity calculations in the resident engineers file to determine if there is sufficient detail and accuracy to be used in the project records. Observe closely during rock placement to detect any damage to the fabric. 2005), although maintenance considerations may serve to reduce this maximum size. Complete the Patio or Walkway 6. CHAPTER 5 SURFACE AND SLOPE PROTECTIVE MEASURES - Food and Agriculture The maximum height of the vertica l lower portions 3.5 feet. Rock riprap consists of loose rock that is dumped on the slope and distributed. Use the size and composition of yarn that is recommended by the fabric manufacturer. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. To ensure the success of Method A, ensure that the bearing of rocks from one to the other follows specifications and that the use of chinking rocks is limited to filling voids. When placing rocks, the contractor should ensure each placed rock is stable and not dependent on the one on top to hold it in place. 5 0 obj endobj Slope paving is a broader term that covers a variety of methods for paving slopes, including colored slope paving, exposed aggregate slope paving, and slope paving with concrete pavers. Class 2 is the default Class for M288 applications. When slope protection is paid by weight, refer to the discussion of weighing and metering procedures in Section 3-902E, Weighing Equipment and Procedures, of this manual. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. 0000002336 00000 n (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. PDF Chapter 4 Construction Details - California GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. If the rock layer is shown as 7 inches thick, comply with grading shown in the following table: If the rock layer is shown as 5 inches thick, comply with the grading shown in the following table: If the rock layer is shown as 4-inches thick, comply with grading shown in the following table: Granular material must contain at least 90 percent crushed particles when tested under California Test 205. When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. Class E Revetment Erosion Stone or Class E Revetment Erosion Stone or A A Engineering Fabric Ditch Bottom 2' 2' Anchor Slot W 6'' min. For combination slope/bench systems in TYPE A soil and a trench depth of less than 8 feet, the steepest maximum allowable slope is 53 degrees from the horizontal. State-furnished materials and expenses, as well as supplemental work items and descriptions. <> Caltrans New Riprap Classes - Plainwater engineering fabric pinned to the slope, or both a . The method for placing rock will either be Method A or Method B, whichever the contract designates, as discussed in Section 4-7203A, Rock Slope Protection, of this manual. You may check the size of rock by roughly measuring the size and converting the volume to mass. PDF BMP 17.00. Rock Slope Armor - Alaska To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. Our TerraTex brand offers full-spectrum performance delivery - groundwater filtration and drainage, soil separation and reinforcement, geomembrane protection, sprayed liner substrate, oil-and-gas industry drilling pad and access-road enhancement, as well as pavement overlay and bond-breaker applications. mum slope of two feet of horizontal distance for one foot of vertical rise. The color shall be black unless otherwise specified in the contract documents. <>stream Refer to Section 6-202, Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products, of this manual for additional information. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Review the plans for the location and number of weep holes. % In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. 2 0 obj Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. The following common types of slope protection are covered in this section: Other protective devices are used in conjunction with highway construction, and when used, they are included in the contracts special provisions. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. If necessary, order additional weep holes. For details about concrete production, review Section 4-90, Concrete, of this manual. 5. The contract plans will designate the required rock layer thickness for each location. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f Review contractors verification of unit weight of rock-filled gabions. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. requirements. Rock mesh slope protection is a technique to control rockfalls . Title: SECTION 212 ROCK SLOPE REINFORCEMENT AND CATCHMENT SYSTEMS US Fabrics is proud to serve the geotextile needs of the State of Califronia, including: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Santa Ana, Riverside, Stockton, Chula Vista, Fremont, Irvine, San Bernardino, Modesto, Oxnard, Fontana, Moreno Valley, Glendale, Huntington Beach, Santa Clarita, Garden Grove, Santa Rosa, Oceanside, Rancho Cucamonga, Ontario, Lancaster, Elk Grove, Palmdale, Corona, Salinas, Pomona, Torrance, Hayward, Escondido, Sunnyvale, Pasadena, Fullerton, Orange, Thousand Oaks, Visalia, Simi Valley, Concord, Roseville, Santa Clara, Vallejo, Victorville, El Monte, Berkeley, Downey, Costa Mesa, Inglewood, Ventura, West Covina, Norwalk, Carlsbad, Fairfield, Richmond, Murrieta, Burbank, Antioch, Daly City, Temecul and all other areas of California. =w (j($M/!bMbo,iDjQL1{L! The method is particularly adaptable to locations where high-velocity flow is not detrimental, but desirable, and the hydraulic efficiency of smooth surfaces is important. 4 0 obj The concrete slope protection method consists of paving the embankment with portland cement concrete. BMP040 "rock slope protection (no fabric)" as applicable. endobj Manufacturers information can be found at: For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. PDF California Bank and Shore Rock Slope Protection Design The latest list of Item Codes is available from HQ in a MS Word document format from the This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). are available to meet BABA (Build America, Buy America) requirements. Type R. Use stones between 50 and 250 lb. 0000007029 00000 n The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks. Products with a are available to meet BABA (Build America, Buy America) requirements. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags.