This translates to a 0.75H: 1V incline and is shown below. Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. 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. Protection involves constructing a heavy mass of smaller rocks bound together by concrete. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. construction contract standards page. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) 2019-07-30T13:44:04-04:00 Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. Any springs or water courses that might affect the stability of the design. Ensure that the contractor places the fabric before placing the rock slope protection. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. 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. endobj 1 0 obj << Ensure concrete is cured by one of the specified methods. Shop Lowe's for solutions to control erosion on slopes, as well. endobj the contract cost database using the most recent year of data. Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. Vegetation (see . RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. The plans indicate the minimum depths of foundations. 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. 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. Need quick pricing on Erosion Control Fabric? This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). 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. Note any changes that may have occurred between the preliminary design studies and the start of construction. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. Method A is used where the stability of the rock slope protection is considerably dependent on the manner in which the individual rocks are placed. Source: Caltran Highway Design Manual, Chapter 870 This has been superseded by Caltrans New Riprap Classes. 0000007052 00000 n Test panels may be specified in the special provisions. Whether you're speeding down a slope or cycling uphill, the F5 can be worn in a number of ways to fit your training and needs. B. Cables. You may be trying to access this site from a secured browser on the server. 0000015681 00000 n 3 0 obj Click on the to search for an item in 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. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Barrier Landscape Edging & Paver Edging 6'/8. 1. 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. 4 0 obj 0000002313 00000 n RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Rock mesh slope protection is a technique to control rockfalls . 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. endobj 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. 9 0 obj Retaining Walls & Slope Stability We're available on the following channels. 2 0 obj +NXR!ft]l|\P2. ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). << Mirafi N-Series Product Description Sheet. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. 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. rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) 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. Caltrans requires the use of these new RSP gradations starting August 1st, 2016 in new projects and those not yet at 30 percent PS&E stage. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. Copyright Maryland.gov. 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. State-furnished materials and expenses, as well as supplemental work items and descriptions. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 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. 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. 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. <> On a cut slope, this could be due to . 7 0 obj 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. The contract plans will designate the required rock layer thickness for each location. endobj Without proper slope protection, a serious erosion problem known as "beaching" can develop on the upstream slope. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. {s9y^ Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. com routes make excellent running trails for serious runners and casual joggers, alike. 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. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. 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. Decide whether an adequate number has been provided for the particular installation. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f | Conditions of Use | Privacy Policy 0000002021 00000 n are available to meet BABA (Build America, Buy America) requirements. The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. 1 0 obj Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. Geotextiles. Temp. For details about concrete production, review Section 4-90, Concrete, of this manual. 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. For details about concrete production, review Section 4-90, Concrete, of this manual. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. 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. Decide whether modifications are necessary as a result of changed conditions. 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. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. There are three material gradation requirements based on required rock layer thicknesses. Other Names Rock Slope Protection. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Please enable JavaScript in your browser. HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? Otherwise, placement could result in what is known as rockers or unstable rocks. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. 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. /Length 5601 FDM 10-10-3 Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . 6 0 obj (see Riprap Slope Protection Worksheet). Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. For maximum effect, both components must be integrally planned prior to road construction. 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. AASHTO is typical mass of 4.1 sy/oz. 0000012187 00000 n 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. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. 0000005658 00000 n 0000004037 00000 n (You may enter part of the word or the whole phrase). This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. 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. These products can be used in areas where they meet the local agency requirements. For Type R, F, or Common stone riprap, provide Type 2 filter fabric when shown on the plans. <>stream - Shoreline Protection with EcoTubes™ CALTRANS does not have an APL/QPL for fabrics. NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. Method B is not restrictive with respect to the placement of individual rocks. At TenCate ourgoal is your success. If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. Soil Stabilization Matting - Channel Application, Perm. %PDF-1.4 % 0000007029 00000 n Soil Stabilization Matting - Channel Application, Temp. California Department of Transportation 10 0 obj The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. Fabric Class Class Largest rock gradation class used in slope protection 8 Classes I-VIII 10 Classes IX-XI Replace the 1st paragraph of section 73-3.028 with: Rocks for concreted-rock slope protection must comply with the gradation shown in the following table: Concreted-Rock Gradation . Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. If extensive slope protection problems are anticipated or encountered during construction, refer these to the design engineer and the project manager, who may in turn obtain the advice of the Caltrans Bank and Shore Protection Committee.. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. /Type/ExtGState Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . Lap 6'' min. 5. Rock grading and quality requirements per Standard Specifications. Polypropylene is stable within a pH range of 2 to 13. YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. engineering fabric pinned to the slope, or both a . >> They blanket the soil, protecting it from wind and water forces. The concrete slope protection method consists of paving the embankment with portland cement concrete. Use the size and composition of yarn that is recommended by the fabric manufacturer. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 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 BMP040 "rock slope protection (no fabric)" as applicable. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. There are three material gra requirements based on required rock layer dation thicknesses. Placement of Bedding Material 1. All rights reserved. 0000013346 00000 n 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 KEwAx{N*$J }COpU?s{bs. endobj 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. Weight will vary based on density of rock available for the project. % The bid item list and plans will specify which type of slope protection is to be performed. Also, ensure the contractor does not drop rock into place; otherwise, cracking or breaking may occur. Verify the types of measurements and records necessary to support payment for the work. The method for placing rock will either be Method A or Method B, whichever the contract designates, as discussed under Section 4-7203A, Rock Slope Protection, earlier in this section. Benchmark inspection of sampling and testing of rocks. =w (j($M/!bMbo,iDjQL1{L! Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. There are three material gradation requirements based on required rock layer thicknesses. Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. Nominal RSP class by median particle diameterb Nominal median endobj main search page where you can specify additional parameters. Use 5 to 7 st Close observation is required during rock placement to detect any damage to the fabric. xZrFou D[&! 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. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. 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. 0000011079 00000 n Obtain initial samples and have them tested for the specified attributes. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). They are designed to protect against raveling-type rockfall that involves small-volume slope failures (up to about 7.6 m3 or 10 yd3) or blocks up to 1.5 m (5 ft), depending on the strength of the mesh used (Muhunthan et al. 5 0 obj Manufacturers information can be found at: :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 Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. Angular shaped rock may be used on any planned slope. 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. Type R. Use stones between 50 and 250 lb. Rock Slope Protection Fabric, used in slope stabilization projects (see Technical Note on Rock Slope Protection / Rip Rap) When required by the Project Engineer, a Certificate of Compliance for each type of fabric being used should be issued by the supplier and furnished to the Engineer. 4-7203C Small-Rock Slope Protection 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. or call Review contractors verification of unit weight of rock-filled gabions. TenCate develops and produces materials that function to increase performance, reduce costs and deliver measurable results by working with our customers to provide advanced solutions. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Click it again to reverse the order. The finish surface must be roughened by brushing to expose rocks. EZw5'dr=`j+2\8:U.|V,%)~h/X8ps /OPM 1 > The color shall be black unless otherwise specified in the contract documents. 0000014254 00000 n @>|0fWp^,Y/T!*gprE."8hjjJ7kUfmYxTsX"CfU2TL]Gdb_Kg,GA/`U)H!hkJARD[R` Rock riprap consists of loose rock that is dumped on the slope and distributed. For method A placement and the class of RSP described, comply with the rock grading shown in the following table: For method B placement and the class of RSP described, comply with the rock grading shown in the following table: Rock must have the values for the material properties shown in the following table: Select rock so that shapes provide a stable structure for the required section. Use all suitable material in the work. 0000008331 00000 n 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