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<br />Specifications <br /> <br />Wire Enclosed Riorao: <br /> <br />Wire enclosed rip rap shall consist of a layer of rock of the required thickness enclosed on all <br />sides in wire fabric conforming with the details shown on the plans (see Figure 3.1). The <br />wire fabric shall be drawn tightly against the rock on all sides and tied with galvanized wire, <br />locking clips, hog rings or connectors. When ties, locking clips, hog rings or connectors are <br />used for tying mesh sections and selvages together, they shall be spaced 76 mm (3 inches) <br />apart or less as shown on the plans. Galvanized wire ties shall be spaced approximately <br />610 mm (2 feet) on center and shall be anchored to the bottom layer of wire fabric, extended <br />through the rock layer, and tied securely to the top layer of wire fabric. When indicated on <br />the plans, wire enclosed riprap shall be anchored to the slopes by steel stakes driven <br />through the riprap into the embankment. Stakes shall be spaced as indicated on the plans. <br /> <br />Filter: <br /> <br />See Brown and Clyde (HEC-11) (1989) and Holtz et al. (FHWA HI-95-038) (1995) for <br />selection, design, and specifications of filter materials. <br /> <br />Installation Example <br /> <br />A typical example of wire enclosed riprap installed by NMSHTD is shown in Figure 3.2. A <br />side slope of a guide bank at the 1-25 crossing of the Rio Galisteo protected with wire <br />enclosed riprap is shown. <br /> <br /> <br />Figure 3.2 Wire enclosed riprap used for guide bank side slope protection at 1-25 <br />crossing of Rio Galisteo, New Mexico (NMSHTD) <br /> <br />3.5 <br />