RFI 09072010.pdf

W911XK-10-B-0007 Oakland County CIPP - Request for Information Updated 7 Sep 2010

1) Are CCTV videos or reports available for the 66” line requiring cleaning. Reports are included in solicitation showing approx. the amount of sediment in pipe at various locations and they must have been generated from a Sonar or CCTV inspection. Reports also indicate that certain portions could not be videoed any further.

Answer:

Sewer televising CD/DVD's used for the design of this project are available for review at the County Office located at: One Public Works Drive, Building 95 West, Waterford, MI 48328.

Contact person is Gary Nigro.

2) Is there any flow date for the 66” pipe. Need to know “low flow” and “peak flows” for cleaning purposes.

The flow within the 66-inch sewer was controlled by Oakland County Water Resources Commissioner’s Office (WRC) during the televising inspection of this line. WRC operated gates at Regulators 1, 5, and 6 to limit the flow during the inspection. This operation was completed during dry weather.

3) Are there any CCTV videos or reports for the lines that need to be CIPP’d. Need this to determine the amount of service laterals and flows to determine the extent of by-pass pumping that might be involved.

Sewer televising CD/DVD's used for the design of this project are available for review at the County Office located at: One Public Works Drive, Building 95 West, Waterford, MI 48328. Contact person is Gary Nigro.

4). Will the NTP be granted on October 31?

Answer: Reference Specification Section 01 35 13.10 Special Project Procedures, 1.5 Sequencing and Scheduling and FAR Clause 52.211-10. The NTP will be issued after receipt of proper performance and payment bonds. See Amendment 0003

5). With the non-working, cold winter months approaching, we are trying to determine how much actual working time we will have within the 180 day limit?

Answer: Reference Section 800 - 52.236-4020 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER (31 OCT 89) (ER 415-1-15) Added with Amendment 0003

6). Please clarify the warranty period per page 21 of the solicitation, Clauses Incorporated by Reference, FAR 52.246-21)

Reference Section 700 - FAR 52.246-21 Warranty of Construction para (b) which can be found at http://farsite.hill.af.mil/

7). Please advice the percentage of performance and payment bonds per page 21 of the solicitation, Clauses Incorporated by Reference, FAR 52.228-15?

Reference Section 700 - FAR 52.228-15 Performance and Payment Bonds – Construction para (b)(1) which can be found at http://farsite.hill.af.mil/

8). Please confirm that there are no liquidated damages.

Answer: There are liquidated damages in the amount of $793 per day. Section 700 - FAR 52.211-12 Liquidated Damages – Construction was added. See Amendment 0003

9). Please confirm there is no retainage on a proposed contract.

Answer: No retainage is typically held unless non-performance or for outstanding Punch List items and or closeout documents

10). Per drawing sheet #054, do you have a profile view of the siphon drawing available?

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Answer: A profile view is not available for the siphon. In reference to the siphon drawing, drawing 54 is a sheet reference for the as-built of the siphon and is available at the County office for review. Gary Nigro has provided the attachments and email explanation below.

Sheet number 2 is the plan sheet from the 12 Towns Drain project from 1962.

I have added some notes to the plan in Adobe Acrobat pointing out the siphon.

Sheet number 39 is a detail sheet of how the siphon was constructed. Note that the manholes are at the bottom of the siphon and not at the top ends as would be expected.

The third attached document is a photograph of the two manholes on the siphon from the original construction.

11). It is possible to receive a copy of the previous CD/DVD inspections since we are not able to see them locally?

Answer: The CDs/DVDs can not be copied and mailed. See Questions 1 and 3.