Lap 6'' min. Erosion control devices provide direct protection to the soil surface therefore, are considered one the best measures for preventing erosion. <> <>/Metadata 7 0 R/OpenAction 8 0 R/Outlines 110 0 R/PageLayout/SinglePage/PageMode/UseOutlines/Pages 11 0 R/StructTreeRoot 137 0 R/Type/Catalog/ViewerPreferences<>>> 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. endobj 2 0 obj 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. On a cut slope, this could be due to . 0000005681 00000 n If necessary, order additional weep holes. /OP true 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. 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. %PDF-1.3 % 0000009682 00000 n Smooth the graded foundation. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. 1, METHOD B) (CY), ROCK SLOPE PROTECTION (NO. Rock grading and quality requirements per Standard Specifications. 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. Verify the types of measurements and records necessary to support payment for the work. /Length 5601 Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. If there are no prevailing agency specifications, it is recommended to follow AASHTO M288 for subsurface drainage applications. Geotextiles. Vegetation (see . Use all suitable material in the work. 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. 0000002313 00000 n 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: $21.50 Total Price: Type of work: REALIGN ROADWAY State-furnished materials and expenses, as well as supplemental work items and descriptions. Check the area to be protected to ensure that the required expansion joints are in place. Otherwise, placement could result in what is known as rockers or unstable rocks. (One call ordering and delivery). 0000012468 00000 n Copyright Maryland.gov. 0000002336 00000 n 0000004014 00000 n The gabions are placed on filter fabric as detailed in the plans and specifications. If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. 3. /Type/ExtGState > Rock riprap consists of loose rock that is dumped on the slope and distributed. Mirafi 160N is a lightweight nonwoven geotextile that meet AASHTO M288 Class 2 geotextiles for separation and subsurface drainage. The plans will designate which type applies at each location. Mirafi N-Series nonwoven polypropylene geotextiles are used for soil separation, drainage in Transportation, Building Site, and Water Infrastructure projects such as subsurface drainage, permanent erosion control and roadway separation applications. When slope protection is paid by volume, review the plans and quantity calculations in the resident engineers file to determine if there is sufficient detail and accuracy to be used in the project records. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. K@^9t% OZ$Mb Ne#^/_*Zw;*T_]k. 0000013346 00000 n . %PDF-1.4 (800) 518-2290, Providing the most comprehensive geosynthetic lines in the industry. Technical Support available for assistance. - Shoreline Protection with EcoTubes&trade; CALTRANS does not have an APL/QPL for fabrics. 3 0 obj 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. Keep records up to date. 2019-07-30T13:47:33-04:00 Enter the item description of the code you wish to search for: 0000013368 00000 n 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. 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. Manufacturers information can be found at: 3, METHOD B) (TON), STRUCTURE EXCAVATION (ROCK SLOPE PROTECTION) (ENGMET). 2, METHOD B) (CY) (ENGMET), ROCK SLOPE PROTECTION (NO. TAR_%R5Wa%*x4ux-x5d1c iU:v9b!KXGcFK 1fN2 t K! Decide whether modifications are necessary as a result of changed conditions. Refer to Section 4-96, Geosynthetics, of this manual for guidelines for inspecting and accepting rock slope protection fabric. 1 0 obj Resident engineers should be familiar with the material contained in Chapters 870, Bank ProtectionErosion Control, and 880, "Shore Protection," of the Highway Design Manual. They blanket the soil, protecting it from wind and water forces. This article studies the mechanical properties and stability of CC slope protection by comparing it with conventional material (shotcrete). 9 0 obj Copies of these details are made available below in both Adobe Portable Document Format (PDF) and AUTOCAD Drawing (DWG) file formats. The heavier fabrics provide more strength and are less likely to tear when large class II or Class III boulders are placed on them. Check to ensure that slopes and foundation areas are graded and compacted to specified tolerances. Click on the product name for a data sheet. 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. When rock slope protection fabric is required for either method, ensure the contractor places the fabric before placing the rock slope protection. Contact our sales team at 1-863-270-8118 to discuss your erosion control requirements. This translates to a 0.75H: 1V incline and is shown below. Also, ensure the contractor does not drop rock into place; otherwise, cracking or breaking may occur. << 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.. 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. Rock mesh slope protection is a technique to control rockfalls . stream % This handbook includes new and revised details for the various practices that are used in the development of erosion and sediment control plans. <>/Font<>>>/Fields[]>> 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. 1 The plans indicate the minimum depths of foundations. 0000000871 00000 n This information is to be used only as a guide. 2005), although maintenance considerations may serve to reduce this maximum size. When specified, ensure coloring is added to the concrete. RSP-fabric Type of geotextile and quality requirements per Section 96 Rock Slope Protection Fabric of the Standard Specifications. Barrier Landscape Edging & Paver Edging 6'/8. The contract plans will designate the required rock layer thickness for each location. Place a layer (six inch minimum) of 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 Take care not to tear the filter fabric during installation. 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. 1, METHOD B) (TON), ROCK SLOPE PROTECTION (NO. 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. PsVPvCHWTxml4N,P>{Ur]JBV:V,iVkNm(C d3@p/J3O//.cji-+TA3 dsU)~Ds:mp7=h&X#0C]\:k`#+VW^`0 0=F5VvL(^f 0000002044 00000 n FDM 10-10-3 Use the size and composition of yarn that is recommended by the fabric manufacturer. endobj 0000015681 00000 n Maximum slope 1.5:1 horiz:vert, (67% or 34) or flatter, and is limited to slopes < 30' of uninterrupted length. For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. 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. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. 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.

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