1130DRUMS

Perform all maintenance operations recommended by the manufacturer of the sign. Periodic ally clean or replace the sign face panels and associated solar pan els. Each portable changeable message sign should be placed off the shoulder of the roadway and behind a traffic barrier, if practical. Where placement of a traffic barrier is not practical to shield the message sign, the message sign should be placed off the s houlder and outside of the clear zone. If a message sign must be placed on the roadway shoulder or within the clear zone, it shall be delineated with a minimum of three (3) drums . When message signs are not being used to display messages for 72 or more hou rs, they shall be relocated such that they are outside of the clear zone or shielded behind a traffic barrier and turned away from traffic. 1120 -4 MEASUREMENT AND PAYMENT Porta ble Changeable Message Signs will be measured and paid as the maximum number of portable changeable message signs acceptably placed and in operation, at any one time during the life of the project. Payment for Portable Changeable Message Signs will be mad e on the following schedule:

Portable Changeable Message Signs (Short Term) will be measu red and paid as the actual number of days the portable changeable message sign (short term) is used on a project for a specific work operation, removed from the project after the specific operation is complete and remains in use on the project no longer than 30 days . Replacement , repair and maintenance of changeable message signs will be incidental to the work of this section. Payment will be made under: Pay Item Pay Unit Portable Changeable Message Sign Each Portable Changeable Message Sign (Short Term) Day

DRUMS -1 DESCRIPTION Furnish, install, maintain, relocate and remove drums with ballast. -2 MATERIALS Refer to Division 10. Item Section Drums 1089 -5 Provide drums listed on the NCDOT APL . -3 CONSTRUCTION METHODS Use the same type of retro reflective sheeting on all drums installed at any one time during the life of the project. Spacing of these devices is equal in feet to the speed limit in the taper and twice the speed limit in the tangent sections. Use a ballasting method in accordance with manufacturer’s specification. When using a tire ballasting method, use approved manufacturer’s tires and place the tires flush with the ground. Do not intermix with skinny drums or cones in either the taper or the tangent sections.