COORDINATION OF PROJECTS: Other projects are in the vicinity of this project and are under contract during the 2026 construction season. x I-29 NB - 8 MI South of ND 13 – Structure Paint x I-29 NB - Jct of Hwy 11 – Structure Paint x I-29 NB - 1 MI N of Hwy 11 – Structure Paint x I-29 NB - 6 MI S of ND 13 – Structure Paint Contractors will be required to coordinate construction activities, such that conflicts do not arise from traffic control layouts or order of operations. 550-P01 3IN EXPANSION JOINT: Install expansion joints consisting of a pre-compressed polymer impregnated self-expanding polyurethane foam joint seal coated with a silicone surface providing a permanent weather tight seal. The joint seal may be: 1. Wabo FS Bridge Seal (Watson Bowman Acme); 2. BEJS Bridge Expansion Joint System (EMSEAL); 3. Iso-Flex Silfast XL (LymTal International), Prepare the joint opening and install the joint seal according to the manufacturer's recommendations. Follow the manufacturer's recommendation for attaching the expansion joint seal to the concrete and for splicing foam together. Install the membrane sealant material into the joint, positioning it with the manufacturer's recommended recess from the top surface of the concrete. Do not stretch or compress the membrane sealant material. Fabricate and install protection armor angles on each side of the expansion joint as shown in the Sec 20 Details. Galvanize the armor angles according to Section 854.01, "Galvanizing". Splices are permitted. Weld spliced ends. Coat weld splices or damaged coating areas with galvanizing paint according to Section 854.02, "Damaged Galvanized Coatings". Include all work and materials associated with the expansion joint seal and protection armor angles in the contract unit price of "3 IN Expansion Joint." 550-P02 CONCRETE SLEEPER SLAB: This work consists of constructing a concrete sleeper slab at the location of an expansion joint in the PCC pavement. Finish the surface of the sleeper slab smooth. Allow the sleeper slab to cure for 24 hours before performing additional work on or adjacent to the slab. Cover the sleeper slab with a double layer of 4 or 6 mil polyethylene sheeting before covering the slab with the concrete roadway. Include all costs for any excavation, removal of existing sleeper slab, aggregate base, reinforcing steel, labor, and equipment in the contract unit price of "Concrete Sleeper Slab".
