2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 400 STRUCTURES SECTION 481 — REMOVING EXISTING BRIDGE SCUPPERS AND DOWNSPOUTS
481.01 Description
Remove existing bridge scuppers and fill downspouts where designated on the Plans.
481.02 Materials
Nonshrink Grout 902.11(c) PVC Pipe Section 905
481.03 Construction
Removing Existing Scuppers and Filling Downspouts. Completely remove all scuppers in conjunction with the removal of the existing bridge deck. Removal of the scuppers includes the grates, scupper basin, associated anchorages, and channels holding the scupper basin in place to the superstructure. Remove downspouts and piping connected to the removed scuppers in their entirety including all hangers, where designated in the plans. If the downspouts are designated in the plans to remain in place, fill the downspout piping with nonshrink grout.
481.04 Measurement and Payment
The payment will include scaffolding, removal of any debris in the scuppers, furnishing and placing nonshrink grout, and all materials, labor, equipment, tools, and incidentals necessary to complete the work.
481.04.01 Removing existing scuppers and filling the downspout piping with grout will not be
measured, but the cost will be incidental to the Removal of Portions of Existing Structure item. 482 — INVERT OF PAVING STRUCTURES CATEGORY 400 STRUCTURES SECTION 482 — INVERT OF PAVING STRUCTURES
482.01 Description
Furnish and install a paved reinforced grout invert to various structures and fill undermined or eroded areas of a structure with grout. Seal leaks and joints in pipes, concrete slabs, or box culverts with grout or other materials as specified. When specified, furnish and coat the exposed metal of the pipe with a coal tar epoxy.
482.02 Materials
Reinforcement Steel 908.01, Uncoated Epoxy Bonding Compound 921.04 Carbon Steel Anchor Fasteners (Hardware) 909.10 Water 921.01 Curing Materials 902.07 Coal Tar Epoxy 483.02
482.02.01 Grout. Grout shall consist of 846 lb/yd3 of Type II Portland cement, mortar, sand
aggregate, 6 + 1 percent air entrainment by volume, and water proportioned to provide a pumpable mixture. The 28 day compressive strength shall be a minimum of 3500 psi. Ready mixed high strength grout may be permitted with permission of the Engineer. Ensure that the ready mixed high strength grout is furnished by a manufacturer approved by the Administration and as specified in Section 915.
482.02.02 Sealing leaks. Provide a non-toxic, VOC compliant, rapid expansive, hydrophobic, closed
cell, polyurethane resin that cures through exposure to the air. The project data sheet can also call the material a polyurethane grout or polyurethane foam. The resin should have a fast reaction time, be rapid setting, and not wash away from the spray of water. Ensure that any material used is NSF 61 (National Sanitation Foundation) certified to encounter drinking water. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS