B. Cables. If necessary, order additional weep holes. rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . construction contract standards page. Obtain initial samples and have them tested for the specified attributes. 0000004014 00000 n 1 Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. << uuid:30dd8676-a64b-4579-9ccf-fc82965d356f Technical Support available for assistance. Concrete canvas (CC) has the potential to become a widely used slope protection material owing to advantages such as flexibility, fast construction with low labor costs, and quick strength development. Angular shaped rock may be used on any planned slope. endobj :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 0000007029 00000 n Riprap can be used to stabilize slopes to prevent erosion and provide support. The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. 6 0 obj Fabric must be RSP fabric that complies with the class shown in the following table: Rock must be cobble, gravel, crushed gravel, crushed rock, or any combination of these. The bid item list and plans will specify which type of slope protection is to be performed. You can also lay bags of sand along problem areas in your landscape to keep soil from washing away and to redirect water. Benchmark inspection of sampling and testing of rocks. Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. The contract will identify the designated method. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. 72-2.02B Fabric Fabric must be RSP fabric that complies with the class shown in the following table: 72-4 SMALL-ROCK SLOPE PROTECTION 72-4.02 MATERIALS Retaining Walls & Slope Stability This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 2. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. You may be trying to access this site from a secured browser on the server. 0000005658 00000 n @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` 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. Ensure that rocks of the specified sizes and shapes are being used. 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. %PDF-1.4 % 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. 0000000928 00000 n 0000012468 00000 n Rock mesh slope protection is a technique to control rockfalls . Your search for great running gear starts and ends with us. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. 2019-07-30T13:47:33-04:00 com routes make excellent running trails for serious runners and casual joggers, alike. Test panels may be specified in the special provisions. Provide filter fabric in accordance with DMS-6200, Filter Fabric. For protection stone riprap, provide Type 2 filter fabric unless otherwise shown on the plans. endobj {s9y^ At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. 0000002313 00000 n If you have any questions or would like to learn more, please contact us. Placement of Bedding Material 1. 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 ([email protected], National Human Trafficking Hotline - 24/7 Confidential. item code description; 729012 rock slope protection fabric (class 10) 729011 rock slope protection fabric (class 8) 723220 concreted-rock slope protection (1/4 t, class v, method b) (ton) 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. endobj Ensure concrete is cured by one of the specified methods. The maximum height of the vertica l lower portions 3.5 feet. . Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. . Soil Stabilization Matting - Slope Application, Perm. Class 2 is the default Class for M288 applications. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. Obtain rock samples for acceptance tests. To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. 0000014254 00000 n <> Click it again to reverse the order. The color shall be black unless otherwise specified in the contract documents. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. mum slope of two feet of horizontal distance for one foot of vertical rise. Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. When evidence exists that the foundation depth is inadequate, obtain both the design and hydraulics engineers concurrence with a change order to deepen the foundation. Weight will vary based on density of rock available for the project. 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. Review the plans for the location and number of weep holes. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f 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. 0000009975 00000 n (One call ordering and delivery). If the fabric is joined by stitched seams, stitch with contrasting colored yarn. /Filter/FlateDecode 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. To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. % Products with a are available to meet BABA (Build America, Buy America) requirements. 10 0 obj Ensure that the contractor places the fabric before placing the rock slope protection. Woven Stabilization and Separation Geotextiles, - Dimensions & Weights for EcoTubes Geotextile Dewatering Tubes, - Dimensions & Weights for EnviroGrid Cellular Confinement, - Material Safety Data Sheet (MSDS) - Drainboard, - Material Safety Data Sheet (MSDS) - Stratagrid, - Material Safety Data Sheet (MSDS) - Envirogrid, - Product Advantages of EcoTubes Geotextile Dewatering Tube, - Product Benefits of EcoTubes Sludge Dewatering Tubes, - Product Benefits of US Fabrics' Foundation Drains, - Product Benefits of US Fabrics' Sheet Drains, Design/Installation Guidelines; Applications, - Comparing Old Style & New Style - Strata Geogrid, - French Drain Exterior Foundation Install, - Geogrid & Welded Wire Form Inside Corner Placement, - Installation Guideline for Separation Heavy Geotextile, - Installation Guideline for Separation Medium Geotextile, - Sheet Drain Exterior Foundation Install, - Theoretical Tube Volumes & Dewatering Capabilities, - Typical Cross Section - Vegetated Reinforced Soil Slope, - Equivalent Products for Composite Drains, - Volumes & Dewatering Capabilities for EcoTubes Geotextile Dewatering Tubes, - Geogrid Quality for Finished Product and Raw Materials, - Use Woven Geotextiles Instead of Geogrids, - Municipal Waste Water & Water Treatment w/ EcoTubes, - SRW (Segmental Retaining Wall) Drainage. California Department of Transportation RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. 1. Project Details For EA 04-0A0204 ITEM NUMBER 729011 ROCK SLOPE PROTECTION FABRIC (CLASS 8) Bid Opening Date (mm-dd-yyyy): 04-21-2021 District-County-Route-Postmile: 04-SON-1-R15./R15.7 Quantity: 220 SQYD Unit Price: $21.50 Total Price: Type of work: REALIGN ROADWAY xZrFou D[&! 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. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. <> If the slope is steeper than 2:1, do not use rounded boulders and cobbles. 0000012187 00000 n 0000013368 00000 n 5 0 obj 5. Decide whether an adequate number has been provided for the particular installation. Erosion Control Fabrics featured here have been used in a wide range of applications including slope stabilization, sediment containment, runoff filtration, home protection, and vegetative regrowth. Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop. 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 DM[2TI=lGQx7 UoFK1: V;39LFOr7LxPF{BL3he6X^@v[QhWiF!l3F) RTIBfx0.T F%n3h80Q,`[2xa%VLP /WD@j rK .9{N[#o/Fad#OK6YeqsyHl2M)V]/Nf(V?!1Oaw)fM 8JG)31m. Soil Stabilization Matting - Channel Application, Perm. Before construction of any type of slope protection, review the plans, Standard Specifications, special provisions, any pertinent preliminary test data, and the location of the installation. cIP=L ?L-o'OfE;9'WgIBdysw>vOo#g 8L3f*7Mnd*3cdLy&v~;6s8;)9Q"SE8a+3/>svm^}+7Ea8IG01nY5y7mxJ]X9sGjv][ppYdv r=0EVPTO(Xam -j9 WYY5:F"l9o&l:dyg^0GXoZgm[\H2#RrlXpZd`CAlwE.Sz.BuTiqT;E@m3I~`km&yeF Keep records up to date. (For large riprap, consider a four inch layer of sand to protect the . The concrete slope protection method consists of paving the embankment with portland cement concrete. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. application/pdf You may check the size of rock by roughly measuring the size and converting the volume to mass. rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) (You may enter part of the word or the whole phrase). If excess concrete remains on the surface, the finished product, when used in streams, will be too smooth and, along the protection, velocities will increase beyond those intended during design. Ensure the equipment used during spreading does not crack the rock. (see Riprap Slope Protection Worksheet). For details about concrete production, review Section 4-90, Concrete, of this manual. The best slope protection type for a given situation depends on the conditions where the installation is to be made, availability of protection material, cost of the various types, and protection desired. Of the various types of instability problems, foundation failures are the most serious and most common. The contract plans will designate the required rock layer thickness for each location. 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. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. 4 0 obj Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. On a cut slope, this could be due to . These products can be used in areas where they meet the local agency requirements. endobj Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. US 160NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. 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. Order corrective work when necessary. There are three material gra requirements based on required rock layer dation thicknesses. 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. This information is to be used only as a guide. 7 0 obj Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may 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. C-15 Permeable rock jetties (fish habitat structures) C-8 C-16 Close-up of permeable rock jetty C-8 C-17 RSP tied to solid rock outcrop, natural impermeable retard (jetty) C-9 C-18 Soil-filled voids, natural vegetation C-9 C-19 Channel cut through deposited beach sand C-10 C-20 Layers of deposited sand C-10 Source: Caltran Highway Design Manual, Chapter 870 NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. Soil Stabilization Matting - Channel Application, Temp. 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. endobj For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. Be sure to consult your local project engineer or construction professional about the rock sizing and particular . 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. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. AASHTO is typical mass of 4.1 sy/oz. 0000002021 00000 n Rock Slope Armor is a layer of rock, such as ditch lining rock, cobble rock, concrete rubble, or riprap, which is hand or mechanically placed on an erodible soil slope. Angular shaped rock may be used on any planned slope. engineering fabric pinned to the slope, or both a . Standard contract items and descriptions for Caltrans projects. 8 0 obj Mirafi N-Series nonwoven polypropylene geotextiles are used for soil separation, drainage in Transportation, Building Site, and Water Infrastructure projects such as subsurface drainage, permanent erosion control and roadway separation applications. <>stream 0000008331 00000 n Mirafi N-Series Product Description Sheet. Erosion control is an important element of successful slope protection. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. These supersede the previous Caltrans Riprap Sizes.
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