849ROCK CONSTRUCTION ENTRANCE

849.1DESCRIPTION—This work is construction, maintenance, and removal of a temporary rock construction

entrance.

849.2MATERIAL—

• Reinforced Precast Concrete. Section 714.3

• Welded Steel Pipe. Section 1105.02

849.3CONSTRUCTION—As shown on the Standard Drawings, as indicated, and as follows:

Clear and grub the footprint of the rock construction entrance as specified in Section 201.3. Construct the rock construction entrance by excavating as specified in Section 203.3, forming embankment as specified in Section 206.3. Place the geotextiles, as specified in Section 212.3(d)2. Place wash rack as indicated. Place wash rack such that all wash water is directed to a sediment removal device. Provide satisfactory drainage through the rock construction entrance. When directed, place additional rock to satisfactorily maintain the rock construction entrance. Remove sediment from drain space when the drain space becomes clogged. Dispose of removed sediment in a manner satisfactory to the Representative. When the construction entrance is no longer needed, as directed, remove the entrance and restore the area as specified in Section 105.14.

849.4MEASUREMENT AND PAYMENT—