2019-07-30T13:47:33-04:00 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. Method B is not restrictive with respect to the placement of individual rocks. 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 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. Links to important documents and pages can be found below the chart. AASHTO is typical mass of 4.1 sy/oz. Rock riprap consists of loose rock that is dumped on the slope and distributed. 4 0 obj Mirafi 135N, 140NL and 140NC are lighter weight versions of Mirafi 140N . 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. 0000012187 00000 n 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. 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. State-furnished materials and expenses, as well as supplemental work items and descriptions. 0000015681 00000 n The Maryland Department of the Environment (MDE)recentlyadopted the 2011 Maryland Standards and Specifications for Soil Erosion and Sediment Control. When changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Class 2 is the default Class for M288 applications. Ensure that the contractor places the fabric before placing the rock slope protection. The gabions are placed on filter fabric as detailed in the plans and specifications. com routes make excellent running trails for serious runners and casual joggers, alike. Consult engineer to ensure applicable design requirements are met. This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. 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. 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 construction contract standards page. 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. 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. Soil Stabilization Matting - Channel Application, Perm. For maximum effect, both components must be integrally planned prior to road construction. RG12N Nonwoven Geotextile with a 300 lbs grab tensile strength and a flow rate of 65 gallons a minute per square foot. Placement of Bedding Material 1. <>stream Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Need quick pricing on Erosion Control Fabric? All items. Center splash basin . There are three material gradation requirements based on required rock layer thicknesses. Contact your local TenCate Geosynthetic representative for the proper use and specification of these products. %PDF-1.4 "QamV(Z3VL> US 160NW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Before placement of the broken concrete, inspect the material and be sure the reinforcement has been removed flush to the surface of concrete. Contract Cost Data Project Details. 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. Click it again to reverse the order. 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: $21.50 Total Price: Type of work: REALIGN ROADWAY The bid item list and plans will specify which type of slope protection is to be performed. Barrier Landscape Edging & Paver Edging 6'/8. For details about concrete production, review Section 4-90, Concrete, of this manual. Shop Lowe's for solutions to control erosion on slopes, as well. << A Shoreline Erosion Control project would likely require fabric in the 10oz to 16oz weight range. The contract plans will designate the required rock layer thickness for each location. Close observation is required during rock placement to detect any damage to the fabric. The Maryland General Assemblys Office of Legislative Audits operates a toll-free fraud hotline to receive allegations of fraud and/or abuse of State government resources. <> { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. B. Cables. Source: Caltran Highway Design Manual, Chapter 870 If using geotextile fabric, place on the smoothed foundation, overlap the edges at least 12 inches and secure with anchor pins spaced every three feet along the overlap. Fabric used for rock slope protection, temporary construction roadways, separation, stabilization, reinforcement, drainage, and erosion control. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) Rock grading and quality requirements per Standard Specifications. When evidence exists that the foundation depth is inadequate, obtain both the design and hydraulics engineers concurrence with a change order to deepen the foundation. Neoloy Tough-Cells in slopes prevent erosion, enable drainage and stabilize the slope to provide a green surface cover. KEwAx{N*$J }COpU?s{bs. To provide the desired cleanliness, the contractor may need to sluice the rock or facing. endobj Use 5 to 7 st 0000013346 00000 n stream BMP040 "rock slope protection (no fabric)" as applicable. (You may enter part of the word or the whole phrase). ), Geocomposite Wall Drain (w/ 6oz on 1 or 2 sides - Please specify.). Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. >> endobj When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 0000002336 00000 n 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. Natural Resources & Energy Infrastructure, Energy - Power Generation - Renewables - Solar, Energy - Power Generation - Renewables - Wind. 3. 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. Standard contract items and descriptions for Caltrans projects. requirements. Graniterock has a 101-year history of providing high quality products and service. Products with a are available to meet BABA (Build America, Buy America) requirements. For details about concrete production, review Section 4-90, Concrete, of this manual. xZrFou D[&! More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! Enter the item description of the code you wish to search for: Other Names Rock Slope Protection. 0000013368 00000 n application/pdf 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. (One call ordering and delivery). 5 0 obj Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. Rock Slope Protection practice is intended for slopes too unstable for revegetation practices alone. Technical Support available for assistance. conforming to the requirements of 710-03 Vinyl Coated Steel Fence Fabric, Class A Wire Diameter, except color. endobj /OP true Mirafi N-Series nonwovens combine high water flow rates, high soil interaction and durability while providing excellent soil particle retention. Erosion control is an important element of successful slope protection. Manufacturers information can be found at: /Type/ExtGState K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. mum slope of two feet of horizontal distance for one foot of vertical rise. The color shall be black unless otherwise specified in the contract documents. 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. Copyright 2023 TenCate Geosynthetics Americas. Any springs or water courses that might affect the stability of the design. 2 0 obj <>/Font<>>>/Fields[]>> Refer to Section 4-96, Geosynthetics, of this manual for guidelines on inspecting and accepting rock slope protection fabric. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. {.sAewh[w#Iv#W6f" $JOPf/W%%XKK&A~b ?nfY_iu"m]HDwP) Rp Obtain rock samples for acceptance tests. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. % rock slope protection (3/8 t, class vi, method b) (ton) 723060 rock slope protection (300 lb, class iv, method b) (cy) . All rights reserved. 1800 Washington Blvd., Baltimore, MD 21230, Stormwater, Dam Safety, and Flood Management Home, Plan Review for State and Federal Projects. Order corrective work when necessary. Transportation Specifications Section 96-1.02I for Rock Slope Protection Fabric, Class 8, nonwoven geotextile. US 160NW is a nonwoven needlepunched geotextile made of 100% polypropylene staple filaments. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. 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 Ensure the equipment used during spreading does not crack the rock. %PDF-1.4 % Soil Stabilization Matting - Slope Application, Perm. 6 0 obj 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. 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. Riprap can be used to stabilize slopes to prevent erosion and provide support. Take care not to tear the filter fabric during installation. 0000014254 00000 n 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 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. The contract will identify the designated method. Click on the to search for an item in << Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. 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. 0000004037 00000 n 8 0 obj are available to meet BABA (Build America, Buy America) requirements. Draw Down Device, Sediment Basin Schematic - Vert. At the start of gabion placement, require the contractor to verify the minimum unit weight of the gabions to ensure it meets specifications. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. This information is to be used only as a guide. 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 specified, ensure coloring is added to the concrete. These products were developed to meet specific agency (DOTs, MTOs, etc.) 9 0 obj There are three material gradation requirements based on required rock layer thicknesses. 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. endobj You may be trying to access this site from a secured browser on the server. 0000002021 00000 n Provide galvanized guide rail cables a minimum 19 mm in diameter, consisting . > {s9y^ with a minimum of 50% of the stones . These supersede the previous Caltrans Riprap Sizes. 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. Use the size and composition of yarn that is recommended by the fabric manufacturer. 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. Intermediate, or B dimension (i.e., width) where A dimension is length, and C dimension is thickness. There are three material gra requirements based on required rock layer dation thicknesses. 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. When exposed aggregate slope paving is specified, ensure any concrete set retarders are used in accordance with manufacturer instructions. 1 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 2019-07-30T13:47:33-04:00 They blanket the soil, protecting it from wind and water forces. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. endobj IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN Test panels may be specified in the special provisions. (a) Exception: US 250NW is 5 pounds short on "grab breaking load" for Sediment Filter Bags. 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 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. 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. Click on a heading to sort by that heading. 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. The devices include ground covers and channel liners such as: 1. The concrete slope protection method consists of paving the embankment with portland cement concrete. 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). The contractor must also ensure the construction of adequate returns and keys at the ends. endobj Place a layer (six inch minimum) of 0000009704 00000 n Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may 0000008354 00000 n 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. If the slope is steeper than 2:1, do not use rounded boulders and cobbles. <> 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. If you have any questions or would like to learn more, please contact us. 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.