B08_24R0004_Attachment_14_-_Q_A_-_Wildcat_Canyon_Dam_0003.pdf

United States Department of the Interior

BUREAU OF LAND MANAGEMENT

National Operations Center

Denver Federal Center, Building 85 P.O. Box 25047

Denver, Colorado 80225-0047 http://www.blm.gov

140L0624R0004 Wildcat Canyon Dam Removal

Questions & Answers

1. The specifications call for a 6-foot-high fence around the construction site. Is there a specification for the fence? Does it go around the entire disturbance area? Are there provisions for placing it in through the drainage? Do we remove the fence prior to demobilizing from the site? The fence will not be required, please see the updated contract documents.

2. In the vegetation specification Section 31 1000 – Site Clearing, 3.2.B states Install substantial, highly visible fences at least 3-feet high to prevent inadvertent damage to vegetation. Is this the purpose of the 6’ fence that was called out? A 36” orange snow fence type delineating the cultural site at the base of the small hill on the south side of the project area, and the preservation area depicted in blue on the drawing.

3. What is the wildlife seasonal restrictions? Wildlife stipulation requires no work from

November 15th through April 30th.

4. Who is responsible for material / density testing? Is there a specified density to achieve for filling the headcuts?

Please see Section 31 0000-EARTHWORK, 3.6 COMPACTION

5. Is the water tank that is on-site available and operational for a water source? Is it hooked to a well? If so, do you know the production rate? No, the water tank on site is not to be used for construction water.

6. How are the earthwork quantities going to be calculated? Simply pre vs. post surfaces? It was mentioned that some of the headcutting had grown since the original topo was performed. Topsoil stripping / replacement will be subsidiary to the Excavation and Grading bid item, correct? Yes, based on GPS survey data per written specifications.

See SECTION 31 0000-EARTHWORK 1.2 Quality Assurance Paragraph A and B.

Yes, Topsoil stripping/replacement will be subsidiary to the Excavation and Grading bid item.

See Section 31 1000-Site Clearing, Part 4 Measurement and Payment

7. Where is topsoil supposed to be stockpiled? Is the topsoil volume included in the 65,000 cy? Is the topsoil replacement subsidiary to the roughness treatment? Please see Section 31 1000-Site Clearing

8. Can boulders be imported from a commercial source for the Roughness Treatment or are the sage brush preferred? Please see Section 31 2200 Roughness Treatment Part 3 Execution 3.2.

Sagebrush and rock cannot be taken from outside the construction limits.

9. Is the seeding schedule accurate for the required Broadcast seeding application rate?

Yes, please see Section 32 9219-Seeding

10. The BLM will provide a GPS model of the finished ground surfaces and structure subgrade. Will the finished surface be of the grading surface or the final Roughness Treatment surface with the ridges and furrows and topsoil replaced?

BLM will provide a GPS model of the finished grading surface. The Roughness treatment will be constructed on top of the finish grade the ridges and furrows are not depicted in the GPS model BLM will provide. Please see SECTION 31 0000-

EARTHWORK

11. Will the BLM set the GPS control points? Yes, points are depicted on the drawing.

12. Where do we find Section 05001 – Government Fill?

This Section will be deleted from the specifications:

Sorting and mixing shall occur in conformance with gradations specified in Section 05001 Governmented Fill.

13. The plans call out 12.92 AC of Roughness Treatment and the bid quantity is 10 AC? Do we get paid for the actual acreage? The BLM has posted a revised bid schedule, changing the bid quantity from 10AC to 12.92AC.

14. Is it intended to amend the existing on-site soil or import planting soil? If so, what are the anticipated requirements? Strip existing topsoil, then spread the existing topsoil over the project area. Section 32 9115 Soil Preparation will be deleted.

15. Section 33 4200 – Stormwater Conveyance refers to storm drain items. There are none on this project, correct? There are no storm drain items on this project. Please see modified specifications.

16. What is the intent of the Monitoring and Maintenance bid item?

This has been deleted from the bid schedule.

17. Will the placed material need to have compaction tests? No, compaction testing is required. Please see Section 31 0000-EARTHWORK.

3.6 COMPACTION

18. Does all the equipment used on site need to be equipped with GPS? Yes, please see

SECTION 31 0000-EARTHWORK Part 1-GENERAL 1.2 QUALITY ASSURANCE paragraph A.

19. The project manual calls for a 6’ tall fence encompassing the entire worksite? This will not apply and has been deleted.

20. Clarification of volume of .5 inch or larger rock added to the site. No rock will need to be imported to the site. 6”+ Rock excavated from the site will need to be sorted and used in the roughness treatment, as referenced in drawing sheet 6.0 Roughness treatment.

21. In case of a flash flood, will Contractor be liable for damages to work site? That will be determined on a case by case basis in accordance with the contract documents.

22. The drawings call for 65,000 yds3 of material to be removed. If Contractor exceeds total yardage, will it be up to the Contractor to dispose of excess material off location? If the contractor exceeds the 65,000 cubic yards please follow clause 52.236-2 Differing Site Conditions and 52.236-16 Quantity Surveys, Alternate 1.

23. Is there a swell factor included into the calculated 65,000 yds3 of material? No

See SECTION 31 0000-EARTHWORK PART 2 PRODUCTS 2.1 EXCAVATION AND BACKFILL VOLUME ESTIMATES paragraph A.

24. Upon visit to the site, there is an existing oil/gas line intersecting the center of the worksite, will the Contractor be expected to coordinate either the removal or burial of said line? Yes, contractor will be required to Contact One Call of Wyoming and comply with any utility company requirements.

25. How will cubic yards be measured for “price schedule” line item #3? See clause 52.236- 16 Quantity Surveys, Alternate 1.

26. If an unusually large weather event occurs, creating additional work and time on construction, how will that be compensated? That will be determined on a case by case basis in accordance with the contract documents.

27. Is there a water source provided by the BLM for dust mitigation during construction?

No, it is up to the contractor to provide their own water.

28. Would you please direct me to the website that is acceptable to you to obtain the SWPPP permit?

https://deq.wyoming.gov/water-quality/wypdes/discharge-permitting/storm-water-permitting/

29. Do you have to have the GPS location for the dam?

Please see Page(s) 3.0 and 3.1 of the drawings, which show the location of the project and directions. 3.1 has coordinates of the control points for the project.

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