Specifications include, but are not limited to: B. 4.2.1 – Earth Embankment – Upstream Slope 1. Repair the crack noted on the right side of the boat ramp. C. 4.3.1 - Concrete Spillway – Upstream Face and Wing Walls 1. Repair the cracks throughout, above and below water, with pressure injected epoxy. (19 LF) 2. Repair the random pop-outs throughout with concrete patching material. (4 SF) 3. Repair the two cracks on the left upstream wing wall with concrete patching material. (8 SF) 4. The area of moderate to severe scaling at the extreme upstream end of the right upstream wingwall should be patched with epoxy concrete. (25 CF) 5. Field measure, cut and re-adjust rotated fence extension on all wingwalls, and secure to prevent rotation. (195 LF) 6. On the right upstream wing wall move old railing system up, tighten bracket so new extended railing is aligned with post. 7. Bolts should be checked, tightened, and replaced if missing on the railing system. 8. Rusted bolts in the baseplate should be cleaned and galvanized and rusted washers and nuts to be replaced. (32 Ea., 40 Ea.) D. 4.3.2 - Concrete Spillway – Downstream Face and Wing Walls 1. Repair the cracks throughout with pressure injected epoxy. (52 LF) 2. Repair the delamination on the right downstream wingwall with concrete patching material. (2 SF) 3. The rust stain, efflorescence, and water leakage on the right downstream concrete wingwall appears to be originating from a crack/spall in the concrete/ which suggests water is penetrating from the earth side of the wall. The source of the water leaking, and condition of the concrete should be investigated to determine an appropriate repair. Petrographic testing and a test pit behind the wing wall is highly recommended for the rust stain and water leakage at the noted crack/spall on the right wing wall. A reinforcement corrosion assessment is also recommended for the rebar that is rusting along the noted crack. 4. Field measure, cut and re-adjust rotated fence extension on all wingwalls, and secure to prevent rotation. (239 LF)
