In making such a decision, observe the following: Take pictures to document existing conditions and verify that Form CEM-3101, Notice of Materials to Be Used, includes the materials for slope protection. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) 0000008354 00000 n The plans will designate which type applies at each location. 3 0 obj 0000008331 00000 n Ensure that the contractor places the fabric before placing the rock slope protection. Of the various types of instability problems, foundation failures are the most serious and most common. Products with a are available to meet BABA (Build America, Buy America) requirements. L Earth Compacted Fabric Engineering 6'' 1'-0'' centers Staples at 6'' 2'' 6'' (Rock Splash Basin) TYPE 4 1 2 (Rock Slope Protection) TYPE 5 Staples at 12 inch centers. Decide whether modifications are necessary as a result of changed conditions. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. endobj Obtain rock samples for acceptance tests. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. The maximum height of the vertica l lower portions 3.5 feet. You may check the size of rock by roughly measuring the size and converting the volume to mass. 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. California Department of Transportation Rock mesh slope protection is a technique to control rockfalls . 0000002313 00000 n endobj Draw Down Device, Sediment Basin Schematic - Vert. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. The contractor must also ensure the construction of adequate returns and keys at the ends. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. 0000007052 00000 n You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. If necessary, order additional weep holes. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. They blanket the soil, protecting it from wind and water forces. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. 0000009975 00000 n This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). Rock riprap consists of loose rock that is dumped on the slope and distributed. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. For details about concrete production, review Section 4-90, Concrete, of this manual. Manufacturers information can be found at: Soil Stabilization Matting - Channel Application, Temp. There are three material gra requirements based on required rock layer dation thicknesses. 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. Temp. If the slope is steeper than 2:1, do not use rounded boulders and cobbles. 0000015681 00000 n 7 0 obj Your search for great running gear starts and ends with us. Click on the to send the number to the <>stream XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. 6 0 obj Rock grading and quality requirements per Standard Specifications. 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. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. Geotextiles. Ensure existing shrubs and trees are protected so that they continue to anchor the surrounding soil. The concreted-rock slope protection method is used where large rock is not economically available in large quantities, yet a heavy, service type of protection is required. 0000011079 00000 n IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. construction contract standards page. 0000000871 00000 n When slope paving with concrete pavers is specified, ensure the special provision requirements are met. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Review the plans for the location and number of weep holes. There are three material gradation requirements based on required rock layer thicknesses. If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 0000012468 00000 n RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. This has been superseded by Caltrans New Riprap Classes. Take care not to tear the filter fabric during installation. Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. Riprap is a permanent layer of large, angular stone, cobbles, or boulders typically used to armor, stabilize, and protect the soil surface against erosion and scour in areas of concentrated flow or wave energy. Obtain initial samples and have them tested for the specified attributes. <>/Metadata 7 0 R/OpenAction 8 0 R/Outlines 110 0 R/PageLayout/SinglePage/PageMode/UseOutlines/Pages 11 0 R/StructTreeRoot 137 0 R/Type/Catalog/ViewerPreferences<>>> 0000013346 00000 n 1 0 obj Use the size and composition of yarn that is recommended by the fabric manufacturer. application/pdf 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. 0000002044 00000 n Ensure concrete is cured by one of the specified methods. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. If you have any questions about the consistency of the gabions, you may also order the unit weight to be verified during the course of the work. 463 0 obj << /Linearized 1 /O 465 /H [ 928 1116 ] /L 999132 /E 15929 /N 109 /T 989753 >> endobj xref 463 26 0000000016 00000 n endobj Draw Down Device, Temporary Access Bridge (1 of 2, PDF only), Temporary Access Bridge(2 of 2, PDF only), Temporary Access Culvert (1 of 2, PDF only), Temporary Access Culvert (2 of 2, PDF only), Onsite Concrete Washout Structure (1 of 2, PDF only), Onsite Concrete Washout Structure (2 of 2, PDF only), If you are experiencing difficulty accessing these details or if there are anyquestions, please contact the Sediment, Stormwater & Dam Safety Program at (410) 537-3543 or by email (Amanda.Malcolm@maryland.gov, National Human Trafficking Hotline - 24/7 Confidential. More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! Complete the Patio or Walkway 6. (You may enter part of the word or the whole phrase). These products were developed to meet specific agency (DOTs, MTOs, etc.) 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. For maximum effect, both components must be integrally planned prior to road construction. Weight will vary based on density of rock available for the project. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. Standard contract items and descriptions for Caltrans projects. <> To provide the desired cleanliness, the contractor may need to sluice the rock or facing. Contact Us endobj These supersede the previous Caltrans Riprap Sizes. Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. 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. 0000004037 00000 n GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# 0000002336 00000 n The contract will identify the designated method. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` Soil Stabilization Matting - Slope Application, Perm. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. Observe closely during rock placement to detect any damage to the fabric. Enter the item description of the code you wish to search for: Refer to Section 4-96, Geosynthetics, of this manual for guidelines on inspecting and accepting rock slope protection fabric. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. The equilibrium soil-to-geotextile system that allows for adequate movement of a liquid across the plane of the geotextile with limited soil loss over the service lifetime of the application. Use all suitable material in the work. %PDF-1.4 % 6'' min. This work consists of protecting slopes, channels, and gutters with riprap, interlock precast concrete blocks, concrete, grouted items, tied concrete block mats, crushed aggregate, or rock items. Close observation is required during rock placement to detect any damage to the fabric. The State of Maryland pledges to provide constituents, businesses, customers, and stakeholders with friendly and courteous, timely and responsive, accurate and consistent, accessible and convenient, and truthful and transparent services. 2019-07-30T13:44:04-04:00 For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 Suggested levels of inspection for slope protection activities are: Ensure the contractor is actively performing quality control on placing slope protection and slope paving throughout the operations. << Shop Lowe's for solutions to control erosion on slopes, as well. endobj (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. 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. 3. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. The concrete slope protection method consists of paving the embankment with portland cement concrete. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Polypropylene is stable within a pH range of 2 to 13. 0000005658 00000 n 0000012187 00000 n The small-rock slope protection method consists of excavating and backfilling the footing trench, placing rock slope protection fabric as shown, and placing small rocks on the slope. concreted-rock slope protection (1/2 t, class vii, method b) (ton) 723215 concreted-rock slope protection (1/4 t, class v, method b) (cy) 723220 concreted-rock slope protection (1/4 t, class v, method b) (ton) 729011 rock slope protection fabric (class 8) 729012 rock slope protection fabric (class 10) 750020 rigid rail fall protection system The Maryland General Assemblys Office of Legislative Audits operates a toll-free fraud hotline to receive allegations of fraud and/or abuse of State government resources. Vegetation (see . 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. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp /OPM 1 The contract plans will designate the required rock layer thickness for each location. 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. 5 0 obj 1. Erosion control is an important element of successful slope protection. Temporary structures shall be left in place until adequate vegetation and the permanent . In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f