Site work for a bridge / tunnel in Allen, Texas. Completed plans call for site work for a bridge / tunnel.

Bridge Repair Phase 2 The work to be performed under this contract consists of furnishing all necessary materials, machinery, equipment, superintendence, transportation, tools, supplies, plant, labor and appurtenances necessary for the complete construction of all improvements shown on the plans which are made part of the specifications for the City of Allen. Question Cuttoff Date & Time 5/28/2024 05:00:00 PM (CT) For questions, please contact the Purchasing Department at 214-509-4630 or Joshua.Young@cityofallen.org. DESCRIPTION Add the following paragraph: Where Type I cement is used, if required by the Owner, samples of the proposed Portland Cement will be obtained prior to beginning the work and one (1) set of three (3) cube specimens shall be made and tested at 3 days and 7 days for compressive strength. The 3-day strength shall have a minimum comprehensive strength of 1800 psi and the 7-day strength shall have a minimum comprehensive strength of 2800 psi. In addition, compressive strength cube specimens shall be made and tested at a frequency of one (1) set per 600 tons of cement used during construction so that the quality of the cement can be observed throughout the project. At the beginning of the project, samples of the cement shall be furnished to the laboratory to test for the fineness of the cement. Type I cement shall not exceed 1500 square centimeters per gram as measured by the Turbidimeter in accordance with Method C115. Also, at the beginning of the project, the time of setting by VICAT NEEDLES, Method C191, shall be made. The initial set shall not be less than 48 minutes.