Attachment_H_Vendor_Questions_and_Answers_0002.pdf
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- Solicitation number
- 140P8322R0005
About this file
This document contains questions and answers regarding Request for Quotation number 140P8322R0005 for stabilizing erosion of the Carbon River Road in Mount Rainier National Park. The solicitation involves installing a diversion system to accommodate high river flows during in-water stabilization work. Historical flow rates at the monitoring station are typically 1,000 to 200 cubic feet per second during the proposed timeframe. Contractors may request a performance extension in the event delays prevent work. Night work was considered but dismissed due to endangered species constraints. The diversion system should withstand a 2,000 cubic foot per second flow event based on the river characteristics. The federal agency is the Department of the Interior National Park Service Pacific West Region.
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Vendor Questions and Answers
RFQ # 140P8322R0005
Carbon River Road Repairs
Mount Rainier National Park
Q: Is there going to be any schedule adjustments on the high flow days on the initial mobilization and construction of diversion?
A: In the event of delays that prevent performance, Contractor may submit a request for a oeriod of performance extension.
Q: Although we have read paragraph C, we are familiar with spontaneous high flows of glacially influenced rivers, has there been any consideration towards working at night to accommodate high flows?
A: Considered but dismissed based on ESA-listed species work constraints.
Q: In our opinion a diversion using the alluvial layer needs to accommodate and withstand a 2,000 CFS event. Based on your knowledge of the river would you concur with this thought process?
A: Historical flow rates at the nearest downstream monitoring station are typically 1,000 to 200 CFS during the proposed in-water work timeframe.
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