0000015681 00000 n 0000005658 00000 n TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! Soil Stabilization Matting - Channel Application, Perm. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. Place a layer (six inch minimum) of 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. More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! <>/XObject<>/Properties<>>>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . 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. Ensure concrete is cured by one of the specified methods. Rock grading and quality requirements per Standard Specifications. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources. Standard contract items and descriptions for Caltrans projects. 0000000871 00000 n 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. 2019-07-30T13:47:33-04:00 0000005681 00000 n FDM 10-10-3 In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . This translates to a 0.75H: 1V incline and is shown below. Take the following steps when inspecting the work and materials for slope protection: In addition to the general functions discussed above, the following items apply to specific types of slope protection. State-furnished materials and expenses, as well as supplemental work items and descriptions. 0000009682 00000 n BMP040 "rock slope protection (no fabric)" as applicable. They blanket the soil, protecting it from wind and water forces. Benchmark inspection of sampling and testing of rocks. - Shoreline Protection with EcoTubes™ CALTRANS does not have an APL/QPL for fabrics. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. endobj %PDF-1.4 There are three material gradation requirements based on required rock layer thicknesses. construction contract standards page. The color shall be black unless otherwise specified in the contract documents. Review contractors verification of unit weight of rock-filled gabions. 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. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. endobj Geotextiles. Ensure that the contractor places the fabric before placing the rock slope protection. in a MS Word document format from the Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes. Review Section 4-90, Concrete, of this manual for details about concrete production. 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. /OPM 1 com routes make excellent running trails for serious runners and casual joggers, alike. 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. GHnBc__'h1'u]SO0P+R&yGeJ$FP?cSp28 1}9AQ #T6Bc*)_vU"]T hY# endobj Click on the to search for an item in 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. 0000007052 00000 n The concrete slope protection method consists of paving the embankment with portland cement concrete. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may Technical Support available for assistance. Shop Lowe's for solutions to control erosion on slopes, as well. Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . 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 . Be sure to consult your local project engineer or construction professional about the rock sizing and particular . 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.. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. (One call ordering and delivery). Source: Caltran Highway Design Manual, Chapter 870 Ensure that rocks of the specified sizes and shapes are being used. endobj HToL[U?Ayb:V;%Y48{RMLIlq&+J[mNN?J;A? Use all suitable material in the work. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Keep records up to date. | Conditions of Use | Privacy Policy Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. 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. Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. <> It consists of a layer of very large stones interlocked together and acts as a barrier on slopes that are unstable because of seepage problems or in areas that are receiving a large concentrated flow. Click it again to reverse the order. KEwAx{N*$J }COpU?s{bs. engineering fabric pinned to the slope, or both a . Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. /Filter/FlateDecode 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. /OP true %PDF-1.4 % 0000002044 00000 n Geotextiles have been in use for thousands of years dating back to the Egyptian Pharaohs. Soil Stabilization Matting - Channel Application, Temp. Retaining Walls & Slope Stability When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. uuid:bc193511-b4f2-4d99-b47d-5ec173dc2f21 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. "QamV(Z3VL> Copies of these details are made available below in both Adobe Portable Document Format(PDF) and AUTOCAD Drawing (DWG) file formats. Copyright 2023 TenCate Geosynthetics Americas. For details about concrete production, review Section 4-90, Concrete, of this manual. Rock riprap consists of loose rock that is dumped on the slope and distributed. 0000009975 00000 n 0000007029 00000 n /Type/ExtGState Contract Cost Data Project Details. 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. % Rock Channel Protection Paved Gutter 601.13 Basis of Payment 601.01 Description. Copyright Maryland.gov. This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). 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. Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. endobj When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. e&C+uPaN.%y5*>EJ9gcD,i4E|+I,b0 f)#H+E m:(B(u1b)Q%>cayKh 0SYB@RenkJ1HJ b#'mYtQS1 HU" 2`VoVsB: ~',2g(5DZsHrxUR5~4 4_ {YNjTjdV \ (aazR#;@1""(*$4"!f)G(J Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Civil engineers and landscape architects need proven solutions to control soil erosion, stabilize slopes, enable drainage and create a visually pleasing landscape. 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. Barrier Landscape Edging & Paver Edging 6'/8. A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. 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 This section provides guidelines for inspecting slope protection for work specified under Section 72, Slope Protection, of the Standard Specifications. Otherwise, placement could result in what is known as rockers or unstable rocks. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. main search page where you can specify additional parameters. 1 Ensure the timber spacers are of the required material and spaced as planned. ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). Angular shaped rock may be used on any planned slope. 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. 0000012187 00000 n :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 (You may enter part of the word or the whole phrase). 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. 7 0 obj 9 0 obj Protection involves constructing a heavy mass of smaller rocks bound together by concrete. =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. Of the various types of instability problems, foundation failures are the most serious and most common. Values shown are based on Table 873.3A dimensions and an assumed specific gravity of 2.65. 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. Decide whether an adequate number has been provided for the particular installation. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. 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. << 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. Soil Stabilization Matting - Slope Application, Perm. 0000004014 00000 n Contact Us Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. 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. You may check the size of rock by roughly measuring the size and converting the volume to mass. Slope protection is usually needed to protect the upstream slope against erosion due to wave action. California Department of Transportation 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. 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. Angular shaped rock may be used on any planned slope. Decide whether modifications are necessary as a result of changed conditions. The devices include ground covers and channel liners such as: 1. 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. trailer << /Size 489 /Info 438 0 R /Root 464 0 R /Prev 989742 /ID[<23d8c9b814a334ef8bf252da6b923edc><23d8c9b814a334ef8bf252da6b923edc>] >> startxref 0 %%EOF 464 0 obj << /Pages 445 0 R /Type /Catalog >> endobj 487 0 obj << /S 1440 /Filter /FlateDecode /Length 488 0 R >> stream 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. 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. > 6'' min. 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. 0000011079 00000 n endobj 0000002313 00000 n Nominal RSP class by median particle diameterb Nominal median To better control the contractors selection of rocks for placing, ensure the contractor paints tonnage on large rocks used in foundation construction. 0000004037 00000 n 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. Complete the Patio or Walkway 6. %PDF-1.3 % Proven Product Track Record (Aggregate is widely accepted and approved)Wilson Quarry Products are recognized as the Industry Standard in the Monterey Bay Area, Product meets and is Certified for Army Corp Projects. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 3 0 obj Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. 0000008331 00000 n Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. (see Riprap Slope Protection Worksheet). XYo[unHCih,(~ t@K{ y.EmvKhy?_\F6.nO?iV5FlD,#t~J7z@Al.z_ooA=H /$Q-Aav. Verify the types of measurements and records necessary to support payment for the work. A geotextile is typically defined as any permeable textile material used to increase soil stability, provide erosion control or aid in drainage. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. Applicability Rock Slope Armor is applicable to: Slopes where unanticipated flows are encountered. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. rock slope protection fabric (class 8) 591200 rock stain: 780450 rock stain: 720110 small-rock slope protection: 192032 structure excavation (rock slope protection) (engmet) conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. 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. These products can be used in areas where they meet the local agency requirements. The gabion method consists of placing wire mesh box-shaped baskets filled onsite with hard, durable rocks.
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