Place a layer (six inch minimum) of mum slope of two feet of horizontal distance for one foot of vertical rise. 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 When slope paving with concrete pavers is specified, ensure the special provision requirements are met. This information is to be used only as a guide. Mirafi N-Series Product Description Sheet. 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. Broken-concrete slope protection consists of placing broken concrete from job site locations identified within the contract. 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. Retaining Walls & Slope Stability The Standard Specifications provide two methods of placement for this type of protection: Method A and Method B. All rights reserved. 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 Angular shaped rock may be used on any planned slope. %PDF-1.3 % 0000002313 00000 n Click on the to search for an item in (One call ordering and delivery). Flat or needle shaped rock must not be used unless the individual rock thickness is greater than 0.33 times the length. Order corrective work when necessary. 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. Standard contract items and descriptions for Caltrans projects. engineering fabric pinned to the slope, or both a . Complete the Patio or Walkway 6. Any springs or water courses that might affect the stability of the design. YOU MUST NOTIFY US FABRICS BEFORE RECEIVING PRICING. California Department of Transportation . 2, METHOD B) (TON) (ENGMET), ROCK SLOPE PROTECTION (NO. Roll size is 15'x300 Equivalent to Mirafi 1120NC or Skaps GT112 (Click here for spec) Properly designed slope protection and stabilization has to include two components: a vegetational-biological and a mechanical-structural component. 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 changes are made, maintain records of details, depths, heights, and other dimensions, and enter these on the as-built plans. Ensure the equipment used during spreading does not crack the rock. Please enable JavaScript in your browser. If the rock contains an excess of fines or inadequate voids, the desired results may be impossible to obtain. The contract will identify the designated method. 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 /OPM 1 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. xZrFou D[&! Ensure that rocks of the specified sizes and shapes are being used. 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. endobj 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. Place a highly permeable and appro-priately sized geotextile filter fabric on the prepared slope following the manufacturer's recommendations. 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. The color shall be black unless otherwise specified in the contract documents. 0000012468 00000 n This has been superseded by Caltrans New Riprap Classes. For measurement and payment, do the following: Chapter 1 - Caltrans Construction Organization, CalOES: Power Outage and Fire Recovery Resources. (b) Paving fabric specification requires a minimum mass of 4.1 sy/oz. 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. <>/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<>>> 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. 0000002336 00000 n Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Start by choosing whether your patio is a **single rectangle** or if it has a different shape, in which case you. 0000000928 00000 n More simply put, if it is made of fabric and buried in the ground it is probably a geotextile! IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN Geofabrics offers a range of engineered slope, embankment and retaining wall solutions of use in transport infrastructure projects. % Center splash basin . 0000009704 00000 n 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""(*$4"!f)G(J 0000015681 00000 n AASHTO is typical mass of 4.1 sy/oz.. When shotcrete is to be used, review Section 4-53, Shotcrete, of this manual. <> Mirafi 1100N, 1120N and 1160N are heavy weight nonwoven geotextiles for more severe or extremely harsh conditions, such as rip-rap and revetment applications. Products with a are available to meet BABA (Build America, Buy America) requirements. Erosion Control Blankets Wattles help slow water runoff and reduce soil erosion. Properly designed and planted vegetative covers play In 2007, the FAA approved construction of a new center field taxiway (Taxiway Mike) to alleviate airfield congestion. Inspect the rock to ensure it has been cleaned of any adhering dirt and clay and is moistened before concrete placement. 0000013368 00000 n To provide the desired cleanliness, the contractor may need to sluice the rock or facing. The method is particularly adaptable to locations where high-velocity flow is not detrimental, but desirable, and the hydraulic efficiency of smooth surfaces is important. { , IMPLEMENTATION OF ROCK SLOPE PROTECTION (RSP) DESIGN. Riprap is typically placed along graded ditch, channel, and shoreline banks over geotextile, which prevents erosional undercutting. At TenCate ourgoal is your success. endobj 2. For RSP Classes I thru VIII, use Class 8 RSP-fabric which has lower weight per unit area and it also has lower toughness (tensile x elongation, both at break) than Class 10 RSP-fabric. KEwAx{N*$J }COpU?s{bs. 7 0 obj 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. To compensate for the lack of flexibility in the completed structure, ensure an adequate foundation lies below this type of protection. 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. Angular shaped rock may be used on any planned slope. Stable rock sizes and flow depths for riprap-lined channels having gradients between 2 percent and 40 percent may If the fabric is joined by stitched seams, stitch with contrasting colored yarn. 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. 10 0 obj 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. 6 0 obj Placement of Bedding Material 1. Slope protection structures are to be used where concentrated water will cause excessive erosion on existing and/or recent cut and fill slopes.

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