Type R. Use stones between 50 and 250 lb. . +NXR!ft]l|\P2. 0000008331 00000 n %PDF-1.3 % Protection involves constructing a heavy mass of smaller rocks bound together by concrete. There are three material gradation requirements based on required rock layer thicknesses. 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. 0000009704 00000 n The maximum height of the vertica l lower portions 3.5 feet. Details from the 2011 Maryland Standards and Specifications Need quick pricing on Erosion Control Fabric? Soil Stabilization Matting - Channel Application, Temp. construction contract standards page. Source: Caltran Highway Design Manual, Chapter 870 <>/Font<>>>/Fields[]>> 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. Complete the Patio or Walkway 6. Rock grading and quality requirements per Standard Specifications. Otherwise, placement could result in what is known as rockers or unstable rocks. 0000004037 00000 n 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. Click on the product name for a data sheet. /OP true Decide whether modifications are necessary as a result of changed conditions. Polypropylene is stable within a pH range of 2 to 13. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. 1. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. PDF RIPRAP - Texas Department of Transportation Observe closely during rock placement to detect any damage to the fabric. 8 0 obj Mirafi N-Series Product Description Sheet. The plans will designate which type applies at each location. 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. Intermittent inspection of placement of slope protection, slope paving, and fabric operations. BMP040 "rock slope protection (no fabric)" as applicable. The bid item list and plans will specify which type of slope protection is to be performed. The contract plans will designate the required rock layer thickness for each location. JavaScript is required to use content on this page. Ensure that the contractor places the fabric before placing the rock slope protection. Ensure that rocks of the specified sizes and shapes are being used. PDF California Bank and Shore Rock Slope Protection Design Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. Graniterock has a 101-year history of providing high quality products and service. 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. At the terminals of protection, ensure the contractor is particularly careful to avoid erosion and undercutting. 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 Thishandbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. 0000013368 00000 n The challenge was to construct a new taxiway over areas that were built on tidal flats and land reclaimed from Boston Harbor. Place a layer (six inch minimum) of You may be trying to access this site from a secured browser on the server. 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. 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. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. Title: SECTION 212 ROCK SLOPE REINFORCEMENT AND CATCHMENT SYSTEMS A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. 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. Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. 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. endobj The contractor must also ensure the construction of adequate returns and keys at the ends. Design and construction application of concrete canvas for slope protection Use 5 to 7 st Nonwoven Geotextile Fabrics These supersede the previous Caltrans Riprap Sizes. Geotextiles - Feature Comparison - Hanes Geo - Leggett & Platt All items. 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) /Length 5601 Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may PDF STANDARD FOR SLOPE PROTECTION STRUCTURES - Government of New Jersey 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. <> 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. Erosion Control at Lowes.com 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. PDF BMP 17.00. Rock Slope Armor - Alaska 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. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Other Names Rock Slope Protection. /Filter/FlateDecode Obtain initial samples and have them tested for the specified attributes. Check the area to be protected to ensure that the required expansion joints are in place. When slope paving with concrete pavers is specified, ensure the special provision requirements are met. Your search for great running gear starts and ends with us. 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. 99 (30% off) Best Selling Saucony Flat Mask By mrhzid $8. Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. Slopes & Walls | Geofabrics NTPEP Datamine Information: RG80NC is a tracking model number for the following manufacturers products: Mirafi 180NC, SKAPS GE180/GT180C or Propex 861. 0000009682 00000 n California Department Of Transportation: Item Code Search Rock Slope Protection / Rip Rap - Graniterock Angular shaped rock may be used on any planned slope. State-furnished materials and expenses, as well as supplemental work items and descriptions. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. endobj 0000015681 00000 n Smooth the graded foundation. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. Mirafi N-Series - TenCate Geosynthetics %PDF-1.4 0000013346 00000 n Erosion control is an important element of successful slope protection. This has been superseded by Caltrans New Riprap Classes. 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 0000002336 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 uuid:30dd8676-a64b-4579-9ccf-fc82965d356f To provide the desired cleanliness, the contractor may need to sluice the rock or facing. 0000002044 00000 n com routes make excellent running trails for serious runners and casual joggers, alike. The latest list of Item Codes is available from HQ 4 0 obj For maximum effect, both components must be integrally planned prior to road construction. (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. 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. When specified, ensure coloring is added to the concrete. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. These products were developed to meet specific agency (DOTs, MTOs, etc.) 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. US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Benchmark inspection of sampling and testing of rocks. Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . %PDF-1.4 % FHWA - Center for Local Aid Support - Publications 3. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. If using geotextile fabric, place on the smoothed foundation, overlap the edges at least 12 inches and secure with anchor pins spaced every three feet along the overlap. Draw Down Device, Sediment Basin Schematic - Vert. 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. Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Consult engineer to ensure applicable design requirements are met. Take care not to tear the filter fabric during installation. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. Soil Stabilization Matting - Slope Application, Perm. 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. 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.. The gabions are placed on filter fabric as detailed in the plans and specifications. Observe construction to ensure the contractor does the placing, finishing, and curing as specified. Of the various types of instability problems, foundation failures are the most serious and most common. 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. application/pdf For details about concrete production, review Section 4-90, Concrete, of this manual. Copyright Maryland.gov. Any springs or water courses that might affect the stability of the design. Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. 0000012468 00000 n 6'' min. 1 Lap 6'' min. Testing must follow the frequencies shown in Section 6-1, Sample Types and Frequencies, of this manual. These products can be used in areas where they meet the local agency requirements. 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. 9 0 obj PDF RG80NC Nonwoven Geotextile for Rock Slope Protection Class 8 Certification The concrete slope protection method consists of paving the embankment with portland cement concrete. Center splash basin . Click on the to search for an item in Click it again to reverse the order. % or call Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. When shotcrete is to be used, review Section 4-53, Shotcrete, of this 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 1 0 obj Refer to Section 4-96, Geosynthetics, of this manual for guidelines on inspecting and accepting rock slope protection fabric. 0000005658 00000 n 0000007052 00000 n Class 2 is the default Class for M288 applications. Please enable JavaScript in your browser. "QamV(Z3VL> Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. 0000014231 00000 n To respond to the different problems associated with instability of rock faces, Geofabrics also has a broad range of independently verified rockfall mitigation systems. Standard contract items and descriptions for Caltrans projects. (You may enter part of the word or the whole phrase). All rights reserved. If the fabric is joined by stitched seams, stitch with contrasting colored yarn. << Erosion prevention practices - Riprap - Minnesota Stormwater Manual 0000014254 00000 n RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. 0000009975 00000 n 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. Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Costs and Installation Tips When Building a Riprap Barrier - The Spruce 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. 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. Mirafi 180N is a moderate weight nonwoven geotextile that meets AASHTO M288 Class 1 geotextiles for separation and subsurface drainage. >> Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. <>stream B. Cables. For measuring concrete or shotcrete, refer to Sections 4-90, Concrete, or 4-53, Shotcrete, of this manual. 2005), although maintenance considerations may serve to reduce this maximum size. 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. << Permeable Aggregate Materials and Filter Fabrics - Graniterock Please enable scripts and reload this page. 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. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. PDF BMP-041 Rock Slope Protection 4-6-12 - Tahoe BMP Review Section 4-90, Concrete, of this manual for details about concrete production.