Q&A_02-06-2020.pdf

WY NPS YELL 10(22)

Canyon to Tower, Phase 3

# General Technical Question Answer Date

1 X

Section 107.11 (e) (3) states to install geotextiles prior to stockpiling material. What is the intent behind this? Does this need to occur for all materials stockpiled on‐site, in the approved stockpile locations, or both?

Subsection 107.11(e)(3) requires placing separation geotextiles to keep material stockpiles from having direct contact with the existing ground, and is applicable staging, stockpile, fuel, and waste site requirements according to Subsection 107.11(e).

1/15/2020

2 X

Section 109.02 (o) reads as if 1 square meter = 9 square feet = 1 square yard is this what you intend for measuring purposes for payment or do we use the actual metric conversion? Also, how does this impact the bid quantities?

Area measurements will be made horizontally or vertically to the surfaces being measured according to Subsection 109.02(o). This Subsection does not impact the bid quantities and it does not state 1 square meter equals 9 square feet or 1 square yard. This Subsections says no deductions from the area computations will be made for individual fixtures having an area of 9 square feet or less for US Customary Units; as well as individual fixtures having an area of 1 square meter or less for metric units.

1/15/2020

Check General or Technical

3 X

Section 109.03 (c) reads as if 100 lbs = 50 kilograms is this what you intend to use for measuring purposes for payment or do we use the actual metric conversion? Also, how does this impact the bid quantities?

Subsection 109.03(c) does not state 100 pounds equals 50 kilograms. This Subsection is saying to either use US Customary scales that record mass to at least the nearest 100 pounds; or use Metric Scales that record mass to at least the nearest 50 kilograms.

1/15/2020

4 X Will a Material Transfer Vehicle for asphalt placemen be required for this project?

No. 1/16/2020

5 X Sheet E.18 Left side of page. Removal of bench and fixture, bench. Is this removal and salvage?

No. See Subsection 203.04. 1/21/2020

6 X Sheet E.18 Left side of page. Removal of bench and fixture, bench. Do we have any details for both?

This will be addressed under a forthcoming amendment.

1/21/2020

7 X Sheet E.19 left side of page. Remove and replace Benches. Where are the details for theses?

This will be addressed under a forthcoming amendment.

1/21/2020

8 X

Sheet D.21 & 22 upper area of page shows 3 areas of Stone curb removal. Is this removal and salvage? Can we use these for the Stone curb Type 1? There is no line item number in the schedule for this.

See Subsection 203.03(f). 1/21/2020

9 X Bid Item A0360, Removal of Headwall. Are these Concrete or stone?

This will be addressed in a forthcoming amendment.

1/21/2020

10 X Bid Item A0360. If the existing headwalls are stone, can we salvage and use the stone for the new stone headwalls?

Yes. See Subsection 203.03(e). 1/21/2020

11 X

H.14 Please confirm the length of Type A & B?

Note: 3 units are mm, that makes type A 28” long and Type B 21” long. The detail above this show the overall distance from Concrete or shotcrete Max 8”.

This will be addressed in a forthcoming amendment.

1/21/2020

12 X

There is a hauling restriction in Section 108.01B(a) that states hauling from July 1 to September 10 can only be from 5:00am to 9:00am and 2pm ‐10:00pm. Will this be enforced for hauling asphalt? This restriction would be almost impossible to get any significant amount of material hauled during those short windows and would cause the asphalt plant as well as the paver and rollers to have to shut down during the middle of the day and start back up again causing a very slow production rate. It also would affect the ability to hire drivers and operators, the ability to schedule asphalt oil deliveries to the plant, and may conflict with allowable paving temperatures specified.

The haul restrictions under Subsection 108.01B will be enforced. Conform to the contract requirements and bid accordingly.

1/21/2020

13 X

I see that the Frog Rock Pit has been the designated site for asphalt and cold recycle material production. We have mixed out of this pit several times with our hot plant. It is barely big enough for a small asphalt plant and a couple thousand ton of material. This project will require approximately 25,000 tons of cold recycle material to be stockpiled, 25,000 – 27000 tons of asphalt plant mix to be stock piled, plus the asphalt plant, cold recycle sizing and processing equipment, and areas to stage trucks several oil tanks in addition to other trades possibly needing the area. Is there a way for the working area of the pit can be enlarged to accommodate for this size of a project? I believe this is going to be a big issue.

The work limits shown on Sheet M.2 is the maximum limits of disturbance at Frog Rock Pit. See Section 105.02(c) if additional space outside the construction limits are needed.

1/21/2020

14 X Thank you for your reply. Do you have a date the amendment will be posted?

When the amendment is ready, we will post it on beta.sam.

1/21/2020

15 X

Section 620 Will all of the stone material come from within the jobsite or the park for the Stone Masonry and Rockery Items? If not, will this be addressed in change at a later date?

See Subsection 105.02 (a) and 105.02(c). 1/27/2020

16 X Section 620.05 (a) Will all headwalls be required to have 3 full width cap stones, as additionally required on previous project?

See Plan Sheet G.7 and Subsection 620.05(a).

1/27/2020

17 X

Please provide clarification of what is to be included for the Tower Fall sewer system. Is the intent to install new sewage pumps or use existing pumps. Is appears there is to be a new 4” ductile iron line under the existing store.

What kind and where is the access?

See Plan Sheets E.20, E.20A, E.20B, E.20C;

SCR Section 612; and other applicable parts of the solicitation documents.

1/30/2020

18 X Being the work is in the Park, are you requiring the Fiber rolls to be made of, and netted in any specific material and diameter?

See Subsection 713.12 for Fiber Rolls and Socks.

1/31/2020

19 X

With the welded wire forms, I’m seeing the triangle ties needing to be galvanized, are you requiring the forms and struts to be galvanized as well? And are there any special requirements for the diameter of wire used in these items?

See Plan Sheet H.13 and Subsection 720.01(b) of FP‐14.

1/31/2020

20 X

Can work on the 21,000 gallon septic tank and the drain field be performed outside of the dates specified in 108.01 d as this work would not hinder the plaza area.

No. See Subsection 108.01(e). 1/31/2020

21 X Can the sanitary sewer infrastructure work at Tower Junction be completed outside the dates listed in 108.01 d?

There is no work to be performed at Tower Junction. Bid according to the solicitation documents.

1/31/2020

22 X

Do you have any pump information and/or condition points for the pumps(s) illustrated on sheet E20A? The pump is shown on the profile view but there is no reference to whether it is a simplex or duplex system. There is also no information about panel requirements.

There are no pumps to be installed in the solicitation documents.

2/4/2020

23 X

I had a contractor contact me this morning to give him a survey proposal for Canyon to Tower, Phase 3. After spending all morning scrubbing all my usual plan sources, I could not find a plan set. Can you direct me to where I can find them?

Go to website https://beta.sam.gov/opp/fedd2c94244149 9caa8321209642b238/view, and click on Canyon to Tower Phase 3 PLAN SET.pdf under Attachments/Links.

2/4/2020

24 X Is there a protocol from NPS to get a source weed free? And if so can it get posted on job listing?

No. Comply with the requirements of Subsection 105.02(c).

2/4/2020

25 X

In the event a source is not weed free, can contractors propose treatment of material at alternate location and then bring the material onto the project?

Bid according to the solicitation documents. 2/4/2020

26 X

Is there a detail for Culvert pipe and reinforced soil slope combined? It appears there might be culvert pipe coming through the bottom of reinforced soil slope.

No. Bid according to the solicitation documents.

2/4/2020

27 X

Under the summary of quantities Sheet B.1 & B.5 it does not show item A0620 & B0640 Roadway Excavation as a contract quantity but in the SCR page F‐9 it details under section

204.16 to us design quantities, is roadway excavation contract quantity?

No. Design quantity referenced under Subsection 204.16 is not contract quantity.

2/4/2020

28 X

Could you please provide anticipated widths and swell of milled material to be stockpiled and designated for use under section 408? And in the event the designated quantity is insufficient will that be addressed in a modification after award?

See plans and cross‐sections for widths. No swell information will be provided. Changes will be addressed according to the solicitation documents.

29 X

Sheet E.18 Tower Falls Parking shows a typical section with cold recycled asphalt base line item A1040 & B1100 but does not account for it in the “Contract Quantity” anywhere, will the contract quantity be adjusted or the typical modified?

Bid according to the quantities shown in the solicitation documents.

2/4/2020

30 X

SCR section 308 calls for Pulverize existing roadway material in place after removing top 4 inches with a rotomill. Is it FHWA intent to leave this material in place and finish it to line and grade? Or does the subgrade below the 100 mm of pulverized material need to be finished to line and grade?

Follow the requirements of Section 308. 2/4/2020

31 X Are there cross section available for Tower Falls, Buffalo Paddok Picnic Area, and Chittenden Road Parking areas we could get?

This will be addressed under a forthcoming amendment.

2/4/2020

32 X Is traffic control needed for non‐work times, i.e.

nights, weekends, holidays etc.?

See Subsection 156.06. 2/4/2020

33 X

Section 105.02(a)(1)&(2) states to obtain suitable material at this site for use, does FHWA have an estimated amount of material for each of these areas?

This information is not available. Bid according to the solicitation documents.

2/4/2020

34 X

On sheet M.2 is an area the states there is room for “Additional operational space after removal of select borrow mat.” When will that material be removed and by whom? Or is that material available to the contractors? If so will it be added to section 105.02?

This will be addressed under a forthcoming amendment.

35 X

On sheet M.2 of plans it also states that relocation of existing borrow stockpiles, noted as (1), to be subsidiary to use of site therefore done by the successful contractor. Where would FHWA or NPS like these moved to?

This will be addressed under a forthcoming amendment.

2/4/2020

36 X And is there any information on how much material is in these stockpiles on Sheet M.2?

See Plan Sheet M.2 and bid according to the solicitation documents.

2/4/2020

37 X

Sheet K.6 of the plans under details for the Type 1&2 Pedestrian Railing show a 2x8 treated timber as a "containment", is there any connection detail to the posts for this 2x8?

No. Bid according to the solicitation documents.

2/4/2020

38 X

Sheet K.7 of the plans under detail for teh Type 4 Pedestrian Railing appears to show a second log at ground level. Is this second log to have the same connection detail and is it to conform to the same specification as the rail above it?

There are no details showing how to connect wood curbs to posts for pedestrian railings; and the log at ground level represents a log curbing that may be round or rectangular in shape. See other plan details and bid according to the solicitation documents.

2/4/2020

39 X

Section 108.01 (e) states “Perform construction operations on the Tower Fall Plaza and Trail, and the Sewer System only during the closure periods described Subsection 108.01 (d)”. Can you define the limits of the Tower Fall Plaza area? Does the Ranger Station fall under these restrictions as well?

See Plan Sheet E.19 and Subsection 615.06 for the Tower Fall Plaza Plan. The comfort station (restrooms), not Ranger Station is part of the Tower Fall Plaza Area.

2/4/2020

40 X Does Frog Rock Pit fall under the park wide haul restrictions, or is it considered on site?

Yes, Frog Rock Pit does fall under the park wide haul restrictions. The area shown within the Frog Rock Pit work limits is part of the Project limits.

41 X

To produce the 302 Roadway Aggregate, method 2, surface course to the specification in SCR 703.06 will Bentonite be allowed to be added to the material?

This will be addressed under a forthcoming amendment.

2/4/2020

42 X

Do you have more information on the Removal of Vault (Abandoned Overflow Tank) item? Is there a typical drawing on what this vault looks like and any dimensions? All we have found is on sheet E.18.

See Physical Data for existing Tower Fall Sewer System As‐Built Drawings.

2/5/2020

43 X

Sheet K.4 of the plan sets shows roadway agg method 2, perforated pipe, and geotextile class 2 type a under the sidewalk, precast concrete pavers. Will these items be paid out per their corresponding bid items or will it all be incidental to the concrete pavers bid item?

This will be addressed under a forthcoming amendment.

2/5/2020

44 X

Is there any chance the bid will be delayed? We are finding that our subcontractors and suppliers are having trouble meeting the February 10th deadline, if it was moved just a few days later in the week would be helpful.

Thanks

Due to time constraints, we are unable to delay the bid opening.

2/5/2020

45 X

When I check quantities for the recycled agg base bid item A0940 30801‐0000, the planned bid quantity is 118,150 m2 which converts to 141,306 sy's (118,150 x 1.1959); but when I check versus stationing I only get 76,782 sy's (based on from Station 26.61 to Station 35.56 is 8,950 meters or 29,356 lnft x 23.54 wide /9 = 76,782 sy's (which is basically 1/2 of what the planned bid quantity is) ‐ can you advise if you agree or have I made mistake somewhere; and if the planned quantities arent correct will you please revise or how should we bid? Thanks.

In accordance with Subsections 308.11 and 308.04, measure the area of the existing asphalt concrete pavement being worked

on. Bid according to the quantities shown in the solicitation documents.

2/6/2020

46 X

Section 308 list crushed aggregate to be measured according to Section 302, are we to assume it will be paid for as 30201‐2000 Roadway aggregate method 2?

Yes. See FP‐14 Subsection 302.07. 2/6/2020