QA_for_CO_FLAP_CR_5(1)_3-5.pdf
PDF 67 KB Posted
- Attached to
- CO FLAP 5(1), CR5 & CR3 Intersection Federal contract opportunity
- Solicitation number
- DTFH6814B00022
About this file
Q A updated on 3-5. An amendment will be posted today addressing some of the answers.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Bid_Tabs.pdf | ||
| Bid_Opening_Summary.pdf | ||
| QA_for_CO_FLAP_CR_5(1)_3-13.pdf | ||
| Interested_Vendors.pdf | ||
| A003.pdf | ||
| A002_CO_FLAP_CR_5(1).pdf | ||
| 2-27_QA_for_CO_FLAP_CR_5(1).pdf | ||
| 2-26_QA_for_CO_FLAP_CR_5(1).pdf | ||
| A001_CO_FLAP_CR_5(1).pdf | ||
| CO_FLAP_5(1)_PRE-Bid_Agenda_with_Notes_2-24-15.pdf | ||
| RBCR_5 3_Intersection_-_CenturyLink_Reloc_Plan_Dwgs.pdf | ||
| SP-6_Technical_Memorandum.pdf | ||
| 2011_June_17_Final_GeoTech_Investigation_CR_5.pdf | ||
| 2010_Aug_6_Final_Pavement_Report_Rio_Blanco_CR_5.pdf | ||
| CO_FLAP_CR5(1)_Final_Stamped_Xsecs.pdf | ||
| CO_FLAP_CR5(1)_Final_Stamped_Plans.pdf | ||
| DTFH6814B00022_CO_FLAP_CR_5(1).pdf |
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Text version
Questions for CO FLAP CR 5(1), CR 5 and CR 3 Intersection
2/19/15
Site Visit was held. See notes posted to www.fbo.gov
2/24/15
1. Question: Where are the seeding specifications? I don’t see them.
a. See Sheets 100 and 101 of the plans.
2. Question: I’ve been searching the bid documents to find a DBE subcontracting requirement – is there one?
a. See page C‐17 of the Invitation for Bid, 52.236‐1 “Performance of Work by the
Contractor (SEP 2006).” The requirement is 50%.
3. Question: I am a precaster here in Grand Jct. checking to see if the culverts to be replaced will be reinforced concrete pipe and if the proposed 10’ x 10’ Box culvert can be precast?
a. Culvert to be placed: Please provide Corrugated Metal Pipe (CMP)
b. Precast box culvert is acceptable see Sheet 88 of the plans: Notes 1 and 2 and Standard
Plan M601‐1
2/26/15
4. According to final geotechnical investigation repot for Rio Blanco County Road 5&3 intersection.
Page 7 states: “Bedrock cut slopes would likely require heavier equipment, rock splitting and/or blasting. On‐site soils and bedrock could be used in site grading fills. We (Yeh & Associates) recommend the materials be processed to a maximum particle size of 6 inches and less.”
It has been Precision Excavating Inc.’s experience from prior County Road 5 projects that whether ripping or blasting, sizes will average 3’ or more. Are you going to stay with 6” specification or allow a rock fill specification that will greatly reduce cost to project. Additionally will you add items for blasting and rock processing with quantities, to give every contractor an even playing field for bidding and ease of payment for work completed?
a. Blasting and rock processing are subsidiary to embankment construction Items 20420‐ 0000. See Subsection 204.17 of the SCRs.
Subsection 204.10 of the FP‐03 does allow for rock embankment and 204.11 of the FP‐ 03 indicates the process for determining the gradation of a rock embankment and the compaction requirements.
5. Embankment – complete in place has the quantity for reshaping the irrigation ditches also. We feel this should come out and be a separate quantity, as the material may need to be imported to meet the 10 PI?
a. Sheet 18 of the Plans indicates the total amount of material required to meet the PI requirements. The cost of import is subsidiary to the embankment pay item.
6. If site does not generate enough topsoil to cover the 52,864 s.y. should there be an import item quantity to bid?
a. Topsoil quantities are accounted for on sheet 102 of the plans. Remove and conserve the top 4” of material. Place back on finished slopes and condition the soil per section 624 of the SCRs.
7. Work sheet shows 10% shrink and import of approx. 5,000 c.y. What if job actually fluffs due to rock. Should you have a quantity for haul off of excess?
a. A pay item will not be added at this time.
3/5/15
8. Item No A0541 Equipment = 50 Hours : Please confirm this item is to cover equipment used in removal and disposal of sediment (erosion control maintenance)?
a. Confirmed.
9. Item No A0611 Special Labor, Hired Technical Services = 20 Hours : General Note 6 indicates this is for Public Information Management. Elsewhere in the bid documents it suggests this item is for Nest Removal (Sheet 102) and Survey (Specs) services. Please clarify what professional service is paid for under this item?
a. Note 6 is incorrect. Formal public information management is not required. This item could be used for nest removal or survey services as requested by the CO.
10. Specification Section 107 is indicating that utility potholing will likely be required to identify/locate utility locations. How will utility potholing be paid?
a. Utility potholing is subsidiary to embankment pay item.
11. Sheet 71‐ Concrete Wier Box: There is no payment item for concrete class B under which this weir box would be compensated per the detail notes?
a. Sheet 71 is not rquried for the contract. Sheet 71 will be X‐out. Some details on sheet
70 are not required and will be X‐out in a coming amendment.
12. Item No A0351 Structural Concrete Class C = 71 CY : Reinforcing steel of 2,495 LB is identified as subsidiary to this item. Tabulation on Sheet 84 shows 2,495 LB for the Walls and 4,339 LB for the Stock pass, for a total of 6,834 LB. Is the rebar for the Stock pass subsidiary to another bid item?
a. There are design inconsistencies with these quantities. The following changes will be made to the plans in an amendment:
Sheet 10 – The quantity of Item 55201 – 0600 will be revised to only 43 Cuyd, and 4,339 lbs of rebar will be subsidiary to that item.
Sheet 84 – The 60101‐0000 concrete and 2495 lbs of steel are not required for the project and will be removed from the Retaining wall quantities.
Sheet 84 – Summary of the Stock Pass Quantities – the 60101‐000 will be changed to 55201‐0600 and 4339lbs of steel will be subsidiary to that item.
13. Item No A0351 Structural Concrete Class C = 71 CY : Tabulation on Sheet 84 shows 28 CY related to retaining wall construction. The MSE Wall details shown on Sheet Number 85 do not show where this concrete is placed. Please clarify where this 28 CY of structural concrete is placed? There appears to be no structural concrete levelling pad required – is it for the Stock pass headwall that abuts the MSE wall?
a. No concrete is required for the MSE walls. Sheet 84 will be corrected in an amendment.
14. Item No A0211 Structure Excavation = 3,1711 CY : 2,370 CY is tabulated for the retaining wall per Sheet 84. Per specification Section 205, structure excavation, select wall backfill, wall backfill, and facing fill is subsidiary to the A0261 MSE Wall bid item. Please clarify what limits of Structure Excavation are included in this pay item??
a. Section 255.08 of the SCRs controls. Structure excavation and backfill will not be paid for separately for MSE wall construction.
Sheet 84 will be revised to show structure excavation, wall backfill, and select wall backfill subsidiary to the MSE wall Pay Item 25501‐1000.
Sheet 9 will be revised to reflect the quantities.
15. Item No A0221 Structure Backfill = 4,041 CY : 3,770 CY is tabulated for the retaining wall per
Sheet 84. Per specification Section 205, structure excavation, select wall backfill, wall backfill, and facing fill is subsidiary to the A0261 MSE Wall bid item. Sheet 85 and 86 do not identify where Structure Backfill is used. Please clarify the placement location for Structure Backfill at the MSE wall location?
a. Structure backfill is not required. Sheet 84 will be revised to show wall backfill and select wall backfill quantities and they will be subsidiary to the 25501‐1000pay item.
16. Items A0721 and A0731 appear to be identical bid items. Why are these items being bid as separate line items?
a. One item is for Xwalk Stop Line and one is for Word‐Symbol. See descriptions on Sheets
11, 113, and 116
17. Item A0051: No information is provided to determine the required diameter of the detour pipe. Please specify minimum diameter or required minimum flow capacity?
a. Furnish 36” diameter temporary pipes.
18. Item A0191: It is understood that that blasting of rock cuts is subsidiary to this work. Will rock scaling be paid under hourly equipment & labor rates?
a. Rock Scaling is not required. Remove loose material as required by the CO subsidiary to the embankment pay item.
File details come from the government source that posted it. Updated .