Pipestem Dam Spillway Modification Project Industry day notes.pdf
Posted: Aug. 27, 2021
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Overview
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Summary
Industry day notes for Pipestem Dam spillway modification project on August 17, 2021, revealed crucial details for potential contractors. The USACE informed attendees about the former small arms shooting range in the spillway channel, which is no longer active. A separate contract will address lead-contaminated soil removal. Wetland mitigation will be through a mitigation bank, and tree mitigation planting is required. Work hours are typically 8 am to 5 pm, with 24/7 operation needed for specific tasks like RCC and soil cement placement.
Reservoir levels fluctuate seasonally, impacting project timelines. Access restrictions were outlined, including no construction vehicles on the dam crest road.
Furthermore, contractors learned about the relocation of a model airplane facility, restrictions on excavation in the spillway channel until certain construction milestones are met, and the use of reservoir water or groundwater for batching. The responsibility for permitting lies with the contractor, and QA lab certification is mandatory.
Details on quantities for excavation, fill, RCC, soil cement, and other materials were provided but are subject to change. The design phase is between 65% and 95%, emphasizing that all information presented during the briefing is subject to revisions as the project progresses.
Reservoir levels fluctuate seasonally, impacting project timelines. Access restrictions were outlined, including no construction vehicles on the dam crest road.
Furthermore, contractors learned about the relocation of a model airplane facility, restrictions on excavation in the spillway channel until certain construction milestones are met, and the use of reservoir water or groundwater for batching. The responsibility for permitting lies with the contractor, and QA lab certification is mandatory.
Details on quantities for excavation, fill, RCC, soil cement, and other materials were provided but are subject to change. The design phase is between 65% and 95%, emphasizing that all information presented during the briefing is subject to revisions as the project progresses.
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