Article 1 — Description
1.1 Installation . Construct, furnish, and install ground boxes complete with lids.
1.2 Removal . Remove existing ground boxes.
Article 2 — Materials
Provide new materials that comply with the details shown on the plans, the requirements of this Item, and the pertinent requirements of the following I tems . Item 420, “Concrete Substructures” Item 421, “Hydraulic Cement Concrete” Item 432, “Riprap” Item 440, “Reinforcement for Concrete” Item 618, “Conduit” Item 620, “Electrical Conductors” Provide fabricated precast polymer concrete ground boxes in accordance with DMS -11070 , “Ground Boxes.” Provide pre- qualified ground boxes from the Department’s MPL. When required by the Engineer, notify the Department in writing of selected materials from the MPL intended for use on each project. Provide other precast or cast -in-place ground boxes that comply with the details shown on the plans.
Article 3 — Construction
Perform work as shown on the plans and in accordance with this Item. Use established industry and utility safety practices when installing or removing ground boxes located near undergr ound utilities. Consult with the appropriate utility company before beginning work.
3.1 Installation . Fabricate and install ground boxes as shown on the plans. Install ground box to approved line
and grade. Construct precast and cast -in-place concrete ground boxes in accordance with Item 420 and Item 440. Construct concrete aprons as shown on the plans and in accordance with Item 432 and Item 440.
3.2 Removal . Remove existing ground boxes and concrete aprons to at least 6 in. below the conduit level.
Uncover conduit to a sufficient distance so that 90° bends can be removed and conduit reconnected. Clean the conduit in accordance with Item 618. Replace conduit within 5 ft. of the ground box. Remove old conductors and install new conductors as shown on the plans. Backfill area with material equal in composition and density to the surrounding area. Replace surfacing material with similar material to an equivalent condition.
Article 4 — Measurement
This Item will be measured by each ground box installed complete in place or each ground box removed. 874 5. PAYMENT The work performed and materials furnished in accordance with this Item and measured as provided under “Measurement” will be paid for at the unit price bid for “Ground Box” of the types and sizes specified and for “Remove Ground Box.”
5.1 Installation . This price is full compensation for excavating, backfilling , and aggregate; constructing,
furnishing, and installing ground boxes and concrete aprons; and material, equipment, labor, tools, and incidentals. All wiring connections required inside the ground box will be subsidiary to this I tem. Conduit will be paid for under Item 618. Electrical conductors will be paid for under Item 620.
5.2 Removal . This price is full compensation for removing and disassembling ground boxes and concrete
aprons ; excavating, backfilling, and surface placement; removing old conductors; disposal of unsalvageable materials; and materials, equipment, labor, tools, and incidentals. Cleaning of conduit will be subsidiary to this Item. Conduit replaced within 5 ft. of the ground box will be subsidiary to this Item. Additional conduit will be paid for under Item 618. Installation of conductors will be paid for under Item 620.