15EXISTING FACILITIES

15-1.01 General

Section 15 includes general specifications for performing work on existing facilities . Performing work on existing facilities includes abandoning, adjusting, modifying, obliterating, reconstructing, relaying, relocating, remodeling, removing, repairing, resetting, or salvaging a facility. Do not perform work on an existing facility until the facility is no longer needed. Reconstructed facilities must comply with the design of and be equal to the best parts of the existing facilities. Reconstruction work must comply with the specifications for new work of similar character.

15-1.02 Materials

Materials for adjusting facilities to grade must be similar in character to the existing materials.

15-1.03 Construction

15-1.03A General

Backfill trenches, holes, depressions, and pits caused by performing work on an existi ng facility. In an unsurfaced area, backfill with embankment material under section 19. In a surfaced area, backfill with material equal to or better than the surrounding material. Grade backfilled areas to drain and blend in with the surrounding area. Clean earth and other foreign material, including concrete, from material to be salvaged or incorporated into the work. Dispose of removed facilities not to be salvaged or incorporated into the work. If you damage a facility or a portion of a facility to rema in in place, repair or replace it. The repair or replacement must be equal or better in quality than the original portion. Repair or replace materials to be salvaged or incorporated into the work that are lost or damaged during work activities. The repair or replacement must be equal or better in quality than the original portion. Instead of this repair or replacement, the Department may deduct the repair or replacement cost. Replace material from existing facilities described to be reused in the work if th e Engineer determines the material is unsuitable. Furnishing the replacement material is change order work. If you damage a part of a loop conductor specified to remain in place, including the part leading to the adjacent pull box, replace the entire loop detector and any adjacent loops damaged during the replacement. Break the floors of structures within the roadway that are not required to be removed such that water will not be entrapped. Where abrasive blasting is performed within 10 feet of a lane open to traffic, remove residue with a vacuum attachment operating concurrently with the blast cleaning equipment.

15-1.03B Removing Concrete

Where concrete is described to be removed , remove the concrete to a depth of at least 3 feet below finished grade. Concrete removal includes removal of any steel embedded in the concrete. Before removing a portion of a monolithic concrete element, make a 1 -inch-deep saw cut to a true line along the limits of removal on faces of the element that wi ll be visible in the completed work. Protect existing reinforcement to be incorporated into the new work from damage. Where new concrete is to join existing concrete, remove enough concrete to allow splicing of new reinforcement. SECTION 1 5 EXISTING FACILITIES Thoroughly remove all mate rial adhering to the existing reinforcement before embedding it in new concrete. Instead of disposing of removed concrete, you may:

15-1.03C Salvaging Facilities

Tag the bundles, packages, and individually salvaged material . Show the following information on the tags:

15-1.03D 15-1.03K Reserved

15-1.04 Payment

Not Used