Construction_RFP-12970223R0043 Questions and Answers rev 1.pdf

1. If a Storm Water Pollu�on Preven�on Plan is required per Arizona Department of Environmental Quality who is responsible?

The contractor will be responsible for coordina�ng, adhering, and paying any fees associated with a SWPPP checklist as required by ADEQ and coordina�ng with the forest service on the 401 water quality cer�fica�on process. Any ac�vi�es within the ordinary high-water mark (OHWM) of Oak Creek must only incur temporary impacts to water quality and must be completed within 6 months for ADEQ to issue a 401 water quality cer�fica�on.

2. What is the creek designa�on in this reach of Oak Creek?

Oak Creek is an outstanding Arizona water (OAW) and is impaired and requires higher level of protec�ons by ADEQ. For ac�vi�es outside the ordinary high-water mark (OHWM) on the top bank any earth disturbing ac�vi�es of 1 acre or more may require a stormwater Construc�on General Permit.

3. Will the site be closed during construc�on?

Yes, the site will be closed during construc�on.

4. The bypass plans show the turbid water between the two coffer dams to discharged 100 feet away from the stream, is there any flexibility in this requirement?

Turbid water can be discharged into the island area or just downstream of the downstream coffer down before the bypass water is returned to the creek. Riprap or other means will need to be placed at the outlet loca�on(s) to prevent turbidity from and sediment discharges before entering the creek.

5. Should contractors expect to move rocks onsite and offsite associated with the demoli�on of the exis�ng grouted riprap structure?

Contractors should expect to move rocks onsite and offsite for demoli�on of the exi�ng grouted riprap structure.

6. Will a sump be allowed in the creek to lower the height of the upstream coffer dam?

A sump will be allowed in the creek just above the upper coffer dam to help limit the height of the dam. Only loose material may be removed for this effort and absolutely no excava�on of bedrock.

7. Will the government provide an example of the texture for the new stepped wall?

Here is an example of what the texture for the new stepped wall could look like.

htps://www.stampedconcretesupplies.com/product-category/stamps/step-and-form-liners/ Grout and stamping adhered to the concrete a�er the main placement will not last/hold up over �me when the Oak Creek floods.

8. How will the 404-permit work?

The government will obtain the 404 permit and contractors will be required to follow and adhere to all aspects of the permit.

9. Why are FP-14 specifica�ons used?

Standard Specifica�ons for construc�on of Road and Bridges on Federal Highway Projects FP- 14 is what the forest service uses for these types of projects. Contractors are required to be familiar with the main specifica�ons book and any supplemental specifica�ons �ed to the project.

10. Will a quality control person be required to be always onsite by the contractor?

With the type of work and dewatering requirement of the project a QC person will probably be onsite most day but not necessarily required.

https://www.stampedconcretesupplies.com/product-category/stamps/step-and-form-liners/

11. For the conceptual creek bypass will the two discharge hoses from the area that is between the coffer dams be allowed to lay across the top of the camp site access road and be mounded over or have pipe bridges for vehicles to pass over them safely at a reduced speed? OR will the pipe be required to be trenched under the roadway and temporarily buried with asphalt patch over the top of them?

The pipes between the coffer dams can be routed across the top of the camp site access road and mounded over if needed. The pipes will not require pipe bridges or for them to be trenched under the roadway. The government an�cipates these pipes to be routed towards the highway side to allow for easier construc�on access for demoli�on and construc�on of the new reinforced concrete step wall.

12. On the side of the creek opposite the exis�ng grouted rip rap what is the limit of disturbance for where we can drive equipment in the flow line of the creek?

All disturbance shall be limited to only what is necessary for construc�on of project.

Contractors should expect it to be limited to 5’ or less from the water line on the opposite side of the grouted riprap. See atached pictures of the area and bank in ques�on.

13. Will the areas where we are discharging nuisance water to from the creek bed need to be protected with fence to prevent animals from ge�ng into the water? Since this is not a natural water loca�on that will atract animals.

The water being discharged will not need to be protected with fence or animals. This creek runs year-round and there’s ample amount of water for animals upstream and downstream of the project loca�on.

14. Is it the Governments intent to have the dewatering setup span the en�re project to include the concrete wingwall work shown on C-07 (1st one. There are two C-07 sheets in these plans.)? Or is it intended to dewater the two work zones separately?

Per the Cover Sheet index, the second C-07 sheet should be C-08 G4 W-Beam Guardrail Details, C-08 sheet should be C-09 Guardrail Anchorage Assembly Details, C-09 sheet should be C-10 Guardrail Flared Terminal Details. Contractors should submit a dewatering plan that is most effec�ve for accomplishing the en�rety of the work. The government an�cipated two areas to be dewatered to accomplish the work.

15. Is there a rate or amount of concrete required to grout the riprap?

The grout should follow 725.13(a)(2) per 252.02 Materials.

16. Is the stepped concrete revetements part of 601(01) and 601(02)?

The concrete step wall is covered under 601(01) Minor Concrete Structures (Bank Stabiliza�on)

17. What line item does the bedrock fall under?

Excava�on for Bedrock is covered under the op�on bid items 204(03) and 204(04). These were le� off the original pay items.

18. Do both ends of the weep hole need to be capped?

There is a 2” diameter perforated collec�on pipe that the weep hole pipes atach to so only the outlet of the weep hole pipes need to have mesh and the ends of the perforated collec�on pipe need caps.

19. In regards to the "Simulated Stone Masonry Surface," what falls under this line item as I am not seeing details in the specs or drawings?

This applies to the ver�cal por�on of the concrete step wall.

20. Refer to sheet S-02 and C-03. Sheets reference grouted riprap to be installed at each end of concrete wall only. Refer to sheet C-04 for sta�on 1+50, this shows replacement of grouted riprap above the stepped wall. This is not shown on sheet C-04 at sta�on 1+50. Please clarify.

Actually, grouted riprap is to be replaced on along the top of the new wall as indicated on sheet C-04 planned stepwall detail and as indicated in the cross-sec�on view. Also, please clarify which areas grouted riprap is to be replaced above the stepped wall if any and how far above the wall. Grouted riprap is to be placed above the wall as indicated in the details on sheet C-04 and cross sec�ons sheets. A new line items has been added to the schedule of items to cover the grouted riprap above the new stepped wall. Please confirm what areas were calculated in the 50 cy bid item. The 50 CY bid items is for the grouted riprap keyway and grouted riprap transi�on on both ends of the wall.

21. Refer to specifica�on 203.04 for removals of obstruc�ons outside roadbed to 12” below finished grade. This is assumed to be referenced for riprap removal and payment limits for excava�on bid items. For example refer to bid items 204(01), 204(02), 204(03), 204(04). It is assumed that measurement and payment for quan��es of excava�on for these items will begin at 12” below top of exis�ng riprap. Please confirm.

Measurement and payment for excava�on and embankment for bid items 204(01), 204(02), 204(03) and 204(04) will be from the exis�ng surface a�er all exis�ng grouted riprap has been removed.

22. Please clarify if there are any specifica�ons to be referenced for the grouted riprap scope?

Please refer to specifica�on FP-15 Sec�on 251 – Riprap and updated Schedule of Items.

23. For what frequency flood event (e.g. Q25) should the dewatering planned be designed?

This is the responsibility of the contractor to determine. Here is a link to a downstream gauge that could assist with the design. htps://waterdata.usgs.gov/monitoring-loca�on/09504420/#parameterCode=00060&showMedian=false&period=P365D

24. Can construc�on ac�vi�es take place in late Summer/early Fall to avoid poten�al large water flows from Spring runoff between May 1 and July 31?

Construc�on is scheduled to begin a�er the spring run off and before monsoon season starts in earnest and provide the best protec�on to the endangered species. Construc�on will only occur in the �meframe called out for the project.

25. Will crew members be permited to camp onsite for the dura�on of the project?

Crew members will be permited to camp onsite for the dura�on of the project. There will not be any water, bathroom, or trash service available.

26. Will lodging such as cabins be available for contractor use during construc�on? No

a. If not, will tent or RV camping be allowed at the site? Tent and RV camping will be allowed on the site. There will not be any water, bathroom, or trash service available.

b. Will there a be a cost to the contractor to camp onsite? There will be no cost to the contractor to camp onsite, but a permit may need to be issued by the district.

27. Will contractors be required to pay parks fees for the dura�on of the project? Contractors will not be required to pay any campground fees for the dura�on of the project.

28. SOW states to haul material off-site. Does the government have a stock pile loca�on where we can dispose of soils and salvage materials for later use by the government? The following pit off Forest Service Road 525 can be used for clean boulders only.

https://waterdata.usgs.gov/monitoring-location/09504420/#parameterCode=00060&showMedian=false&period=P365D https://waterdata.usgs.gov/monitoring-location/09504420/#parameterCode=00060&showMedian=false&period=P365D

Or are we to haul off and dispose of at our own loca�on? All other waster materials need to be hauled off the site and disposed at an appropriate facility or site.

29. Please confirm the contractor will be able to have access to the en�re campsite area, star�ng at the turnoff to the campsite. We would like to have access to that first parking lot as a storage/laydown area. The en�re campsite will be accessible to the contractor but only the following areas are available for storage and laydown. Any damage done to the campground will need to be repaired at the contractor’s expense. See atached disturbance area and staging areas on map below per NEPA.

30. What pedestrian traffic control is required? This will need to be determined by the contractor.

Will the general public be able to access this area on foot through any other means besides the main road? The en�re area will be under a closure no�ce issued by the forest service that can and will be posted at the main entrance to the site.

31. Please clarify white items on the bid schedule are base bid items and which are bid op�on items. Op�onal bid items are 204(03) and 204(04) associated with the concrete stepwall founda�on and notes on sheet C-06.

32. Can the contractor assume the op�on items will be awarded at the same �me as the base bid items? If money is available, the op�on items will be awarded at the same �me as the base bid.

a. Can we also assume the op�on items will be built simultaneously with the base bid items? Op�on items are directly �ed to the base bid items and would be built simultaneously as the base bid items.

b. Can the op�on items be awarded at a later date? There is poten�al that the op�onal items could be awarded later than base bid items based on funding.

33. Can a site visit list of site visitors be provided so we can connect with other contractors interested in the project?

This will be posted to the solicita�on.

34. While we understand we are to minimize tree removal and impact, are there any specific trees within the project area that we are absolutely not allowed to remove? There are no specific trees that absolutely need to remain, it is extremely important to limit removal and protect the vegeta�on to every extent possible.

35. Trees along the access road may also be damaged by trucks and machinery coming in and out of the jobsite. We will do our best to minimize this, but please confirm this is acceptable. It is very important to protect the vegeta�on and trees to the greatest extent possible.

36. Drawings specify a biological monitor to be required for all construc�on ac�vi�es. Is this individual contracted by the government and paid by the government?

These are individuals contracted by the government or forest service employees.

Or is this someone we need to have contracted under us, and factor in their pricing to be on-site?

This is not someone the contractor needs to hire or factor into pricing.

37. Please confirm this biological monitor is required to be on-site at ALL TIMES during any construc�on ac�vity.

A biological monitor will be on-site based on ac�vi�es and scheduling. There needs to be a biological monitor checking holes and voids ahead of each piece of simultaneously opera�ng equipment, i.e., if there are two separate work areas, we’ll need advanced no�ce to arrange for 2 biomonitors that day.

38. What is the cost and dura�on of the gartersnake iden�fica�on training men�oned in the drawings?

There is no cost for the training, and it will take around 1-2 hours. Any new personnel entering the site will need to have the training.

39. Please confirm the fish biologist will remove all fish prior to construc�on, at no cost to the contractor.

A fish biologist will remove fish prior to construc�on at no cost to the contractor.

40. Would the Government please consider allowing projects submited under Factor 1, Past Performance to be performed within the past 7 years instead of 5 years?

Yes, the important thing is to have relevant past experience.

41. For what frequency flood event (e.g. Q25) should the dewatering planned be designed?

42. This is the responsibility of the contractor to determine. Here is a link to a downstream gauge that could assist with the design. htps://waterdata.usgs.gov/monitoring-loca�on/09504420/#parameterCode=00060&showMedian=false&period=P365D

43. Can construc�on ac�vi�es take place in late Summer/early Fall to avoid poten�al large water flows from Spring runoff between May 1 and July 31?

Construc�on is scheduled to begin a�er the spring run off and before monsoon season starts in earnest and provide the best protec�on to the endangered species. Construc�on will only occur in the �me frame called out for the project.

44. Will crew members be permited to camp onsite for the dura�on of the project?

Crew member will be permited to camp onsite for the dura�on of the project. There will not be any water, bathroom, or trash service available.

https://waterdata.usgs.gov/monitoring-location/09504420/#parameterCode=00060&showMedian=false&period=P365D https://waterdata.usgs.gov/monitoring-location/09504420/#parameterCode=00060&showMedian=false&period=P365D