3. Questions and Answers.pdf
PDF 115 KB Posted
- Attached to
- Stop Log Repairs Amistad Dam Federal contract opportunity
- Solicitation number
- 191BWC20R0007
About this file
This document contains responses to vendor questions regarding a solicitation for stop log repairs at the Amistad Dam. The International Boundary and Water Commission U.S.-Mexico is seeking a contractor to perform a condition assessment, painting, and repairs on stoplogs and a lifting beam. The contractor will be required to remove and reinstall the stoplogs using a truck-mounted 35-ton crane supplied by the contractor. All seal assemblies will be replaced regardless of condition. The contractor will have access to all stoplogs at one time to complete the work, but repairs, blasting and painting must be done offsite rather than on the roadway or bridge structure. The responses clarify that welding repairs to roller brackets may be required depending on the condition assessment outcome. The solicitation number is 191BWC20R0007 and closing date references are to the latest code editions in effect at that time. Inspection photos and reports on the stoplogs and lifting beam are attached.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Questions and Answers 9.2.2020.pdf | ||
| 2. PWS-Amistad StoplogsV5_Aug2020.pdf | ||
| 5. Tainter Gate stop log .pdf | ||
| 1. AmistadStoplogs_REV-PricingSheet.pdf | ||
| 4. Lfting Beam.pdf | ||
| Att 2. QASP_Amistad Stoplogs.pdf | ||
| Att 4. 15-5303 Rev 14 06.03.2020.pdf | ||
| 191BWC20R0007.pdf | ||
| Att 5. TX20200186 01.05.2020.pdf | ||
| Att 1. PWS-Amistad Stoplogs.pdf | ||
| Att 3. Amistad Dam Bulkhead Drawings.pdf |
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Text version
AMISTAD STOP LOGS SOLICITATION
RESPONSES TO VENDORS QUESTIONS
Date: 8/17 Q: Please clarify the intent and expectation of what is to be included in the line item “seal assembly repair”.
- Is the 1,770 lf to include the following:
o neoprene j bulb seal as shown in section F-F along with hardware and 2”x3/8” CRS seal bar o neoprene seal as shown in section G-G along with hardware and 3”x3/8” CRS seal bar
ANS:
Neoprene:
8 LF of J-bulb (hollow bulb) Neoprene per/gate needs to be replaced 50 LF of 3 ¼” x ¾ “ (strip) Neoprene per gate needs to be replaced
Neoprene Totals:
64 LF – J-bulb (hollow bulb) Neoprene 400 LF - 3 3/4” x 3/4” (strip) Neoprene
Corrosive Resisting Steel 8 LF - of existing 4’ x 2” x 5/8 “ steel facing per/gate and bolts needs to be inspected, cleaned and replaced* 50 LF – of existing 50’ x 3” x 3/8” steel facing per/gate and bolts needs to be inspected, cleaned and replaced*
Corrosive Resisting Steel Totals:
64 LF – 4’ x 2” x 5/8 “ steel facing 400 LF - 3” x 3/8”
• If steel facing or bolt fasteners are found to be unserviceable, this will be reported in the inspection report and a cost of replacement given
Date: 8/15
Q: Please confirm the following:
- For the replacement of the rollers, the intent is to replace the roller and hardware (grease fitting, bushing, spacer, and bolt) associated with it and welding repair to the brackets attached to the beam is not required for this repair.
ANS: welding repair to the brackets attached to the beam may be required; depending on the result of the condition assessment.
Date: 8/13 Additional Questions:
Q: What year D1.5 should we reference?
ANS: Latest edition on the closing date of the solicitation.
Q: What year code for NDT Cert supervision per D1.5 6.1.3.4 and 12.6.1.1?
ANS: Latest edition on the closing date of the solicitation.
Q: The only fabrication for this project based on the bid items are the rollers. Can the AISC certification required be waived since all welding will be done in the field?
ANS: No.
Date: 8/11 Q: Will we have access to all of the stoplogs at one time?
ANS; Yes.
Date: 8/11 Additional questions:
Q: Will IBWC staff or the contractor be required to remove the stop logs and put them back in place?
ANS: Contractor Q: If the contractor is required, do we supply the crane or does IBWC have one for use?
ANS: Contractor supplies the crane. However, it is restricted to truck mounted 35-ton crane.
Q: Are we able to do all repairs, blasting, and painting on the roadway on top of the dam structure?
ANS: NO. You must remove the stop logs from the bridge and work on them offsite. However, you can use the area on the side of the bridge.
Q: Regarding the bid item for seal assembly, are we to assume an entire seal assembly for one of the stoplogs would be replaced if repairs were needed?
ANS: All seals shall be replaced regardless of condition. Therefore, there is no need to assess condition.
Q: Do you have any pictures or inspection reports you can provide of the stoplogs and lifting beam for the solicitation referenced?
ANS: Attached.
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