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I <br /> the concrete with epoxy resin. Dams shall be placed at the front of the holes to confine <br /> the epoxy and shall not be removed until the epoxy has cured in the hole. <br /> 6-02.3(28) Precast Concrete Panels <br /> Section 6-02.3(28)is supplement with the following: <br /> Contractor Designed Reinforced Concrete Vaults <br /> The following vaults shall be designed by the Contractor and may be precast: <br /> 1. SRO1 Regulator Structure <br /> 2. SRO2 Regulator Structure <br /> 3. Trunk C Flow Screening Structure, and <br /> 4. Lift Station No.9 Flow Screening Structure. <br /> All appurtenances such as manhole access lids and internal walls, weirs, plates, and ladders <br /> shall be included in the design. <br /> The vaults may be comprised of individual pieces connected at the site to create the vault <br /> geometry as shown in the Plans. If the vault walls are cast as individual walls, each wall shall <br /> be comprised of a single monolithic piece which is then connected to other walls and slabs as <br /> required in the Plans and these Specifications. Base slabs and roof slabs may be comprised of <br /> separate pieces connected to one another with a grouted shear key as detailed in the Plans. <br /> Provide watertight connections between all precast elements. Connections shall consist of a <br /> grouted keyway with two rows of watertight gaskets along each wall/slab and wall/wall. <br /> Provide bolted connections between each wall corner consisting of a 1" diameter bolt and <br /> threaded inserts at 2 feet maximum spacing. Bolted connection shall be recessed and filled with <br /> grout flush with face of wall. <br /> . <br /> - - _ -. 4 !!! z• <br /> • ! <br /> bent or welded reinforcing bars shall be ASTM A706. <br /> The vaults shall be constructed according to ASTM C1577-16. The vaults shall be reinforced <br /> concrete using concrete and steel reinforcing bars as specified in the Plans.[M°area rnaae°aumKu] <br /> The Contractor shall confirm the location of the blockouts in the vault slab with the screening <br /> equipment manufacturer for the screening equipment lift and discharge chute prior to <br /> preparation of vault shop drawings. Coordinate and confirm debris receptacle placement and <br /> fasteners with the screening equipment manufacturer prior to preparation of shop drawings. <br /> the AASHTO LRFD Bridge-Design Specifications(LRFD). <br /> The Contractor shall submit Type 2E working drawings per Section 1-05.3 to the Engineer for <br /> review prior to fabrication. The vaults shall be designed in accordance with the American <br /> Concrete Institute (ACI) Code Requirements for Environmental Engineering Concrete <br /> Structures(ACI 350-06)for normal environmental exposure conditions.[M°di,eaper naae°aumi] <br /> Comply with Section 2-09 for submittal and design requirements of required shoring and/or <br /> cofferdams. <br /> Live Load(LL) shall be as shown in the Plans, applied in accordance with the LRFD; <br /> Soil backfill unit weight shall be 125 pcf with an internal friction angle of 32 degrees; <br /> geeteeimieai-r-epeft; <br /> 111 <br /> HAYES STREET REGULATOR February, 2017 <br /> AND CSO CONTROLS (SRO1, SRO2,AND SRO3) <br /> WO No—UP3398-31 SP- 158 <br />