PAJARO SITE 3 REPAIRS - Updated RFI LOG -2023-07-25.pdf
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- Attached to
- Pajaro PL 84-99 Site 3 Repair
- Solicitation number
- W912P723B0011
About this file
This document provides responses to questions from contractors regarding Solicitation Number W912P723B0011 for repairs to Pajaro PL 84-99 Site 3. The solicitation is issued by the Department of the Army Corps of Engineers Engineering District San Francisco. Repairs include removing and replacing the existing 60-inch culvert headwall, dewatering, removing approximately 50 timber piles, and installing a sheet pile diversion structure. The bid due date was extended by one week. No individual environmental permits were required but the work must comply with Federal Acts listed in the specifications. Nearby geotechnical borings were provided but are not contract documents. The seed mix type is specified in the specifications.
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PAJARO SITE 3 REPAIRS
QUESTIONS & RESPONSES
SOLICITATION NUMBER W912P723B0011
RFI # RFI QUESTION RESPONSES
1 Specification Section 00 21 00 1.1 requires contractor to remove and replace the existing headwall for 48-inch culvert. Since there is no 48” culvert shown on the plans, we are assuming that this is related to 60” CMP culvert. Plan sheet C-502 Detail A1 calls for protecting in place the existing concrete headwall. Please clarify if we need to remove and replace the headwall.
Follow Plan Sheet C-502 and protect in place.
Confirmed that 60” CMP culvert is correct.
The headwall does not need to be removed.
Section 00 21 00 1.1 is revised to delete sentence “The existing headwall will be removed and replaced with cast-inplace concrete and backfilled with suitable compacted import fill”.
2 Please provide any geotechnical investigation data available for this project. This will help us design the suitable dewatering solution for this project.
Nearby geotechnical borings attached. Borings are not part of contract documents.
3 Please extend the bid date by one week.
See amendment 3
4 Please provide a count of timber piles that are required to remove on this project.
Contractors should use 50 piles for estimating purposes
5 Are there any restricted work windows when the contractor is allowed to work in the water?
Refer to Specifications (section 01 57 19 para.
3.1.6) No, see revision to Section 01 57 19, Paragraph 3.1.6 attached.
6 Please provide copies of the environmental permits issued for this project. Amendment 4 will provide this information. No individual permits were issued for this project, however, the project is in compliance with the Federal Acts listed in Section 01 57 19 para.
1.8.
7 What is the anticipated completion date for this project? See period of performance in solicitation 8 For the sheet pile diversion structure, please provide the toe elevation that we should assume as no Geotech information is available for this project.
The toe elevation was not surveyed after the flood event. See amendment 4 for additional information. Diversion structure design is the
PAJARO SITE 3 REPAIRS
QUESTIONS & RESPONSES
SOLICITATION NUMBER W912P723B0011
responsibility of the contractor. Nearby geotechnical borings are provided for the Contractor’s use, but are not part of contract documents.
9 There is reference to blasting in the excavation specification. Is there any blasting anticipated on this project?
No
10 CAD Files? See amendment 1 See CAD files attached. This is for informational purposes only. The contractor shall rely on the Plans and Specs to perform the work. The plans and specifications supersede any information in the CAD files (in the case of any conflicting information).
11 What type of seed mix is required? Refer to Specifications (section 32 92 19 para.
2.1)
File details come from the government source that posted it. Updated .