Reso 2007-1103 - Laserfiche WebLink

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PSI] damage. Make repairs according to the manufacturer's recommendations and to the satisfaction of the Engineer. Ensure that completed repairs provide a level of quality necessary to maintain the service life warranty of the sign and are satisfactory in appearance to the Engineer. 700 -7 Footings for Signs, Posts and Supports. j 700 -7.1 Excavation and Backfilling: Perform excavation and backfilling for the footings in accordance with Section 125, with the exceptions that no specific density is required and that the backfill may be tamped in 4 inches [100 mm] maximum layers. Use material that is at near optimum moisture and neither dry or saturated, and tamp to the extent directed by the Engineer. The Department may require that the backfilling be done with poured concrete. Install spread footings which support sign structures overhanging the roadway as required in 455 -25 through 455 -37. 700 -7.2 Mixing and Placing Concrete: For batching and mixing of concrete for footings, meet the requirements of Section 346, except that the Engineer will allow hand mixing by approved methods where the quantity to be mixed does not exceed 1/2 yd [0.4 m3]. Use cast -in -place or precast concrete for the footings. 700 -7.3 Forms: The Engineer will not require forms when the ground is sufficiently firm, in which case, sufficiently moisten the adjacent earth to prevent it from absorbing the moisture from the concrete. Where forms are required and the soil is not moist, place I� sufficient water, as directed by the Engineer, in the hole, and pour the concrete as soon as the water has been absorbed. Place at least 4 inches [100 mm] of loose earth, free from clods or gravel, over the top of the footing to effect curing. 700 -7.4 Finishing Concrete: Trowel the top of the concrete to a smooth finish. 700 -7.5 Removal of Footing: When the plans call for existing ground- mounted signs to be modified or removed, immediately remove supports and footings that project more than 6 inches [150 mm] above the ground surface after removing the sign panel from the assembly. Remove existing footings to a depth at least 12 inches [300 mm] below the ground surface. The costs will be included in the Contract unit price of the item to which it is incidental. 700 -8 Erection of Signs and Sign Supports. Do not erect overhead sign supports until the concrete in the support footing has cured for at least seven days. The Engineer may allow sign support erections prior to seven days provided the footing concrete strength is at least 2,500 psi [17 MPa]. Determine concrete strength from tests on a minimum of two test cylinders, tested in accordance with Section 346. �r Erect the signs and sign structures in accordance with the details shown in the V�I�fl11� plans. The Contractor may fabricate the structural steel sign trusses in sections that will fit into available galvanizing vats. Prior to galvanizing, weld the joints as specified in 460 -6 and in accordance with the details shown in the plans. Metalize damaged parts as specified in Section 562. Weld aluminum structures in accordance with 965 -3. 700- 9 Method of Measurement. The quantities to be paid for will be: March 2007 01000 -155 03- 4122.D �'