Q&A_9-6-18.pdf

CA NPS YOSE 2018(1)

Pavement Preservation Yosemite

# General Technical Question Answer Date

1 X

What are the limits for microsurfacing in regards to asphalt gutters and valley gutters? It appears previous contractor placed material just outside of the striping edgeline.

Extend the micro surfacing to the flowline of the curb unless otherwise directed by the CO. Valley gutters do not need to be micro surfaced unless directed by the CO.

8/24/18

2 X

What is the agencies intentions to do with existing rumble strips? Shall they be filled simultaneously or will they require a separate lift to be filled?

Mill and inlay with asphalt concrete pavement the existing Route 013 centerline rumble strips as shown on sheet C.1.

8/24/18

3 X

Several of the parking lots are covered with Pine needles and debris, will the agency remove extraneous debris prior to sweeping or will the contractor be required to sweep, and offhaul materials? If so is there a designated dump site for this material?

Contractor is required to remove and dispose of loose and other deleterious material as per SCR 409.06 Surface Preparation and FP‐14 203.05(a).

8/24/18

4 X There appears to be rutting on several locations, is the agency intending to have the contractor rutfill prior to final microsurfacing level?

No. 8/24/18

5 X

There is an extreme amount of dirt tracking on a few of the parking lots from fire trucks and equipment. How does the agency intend on tackling this issue?

Contractor is required to remove and dispose of loose and other deleterious material as per SCR 409.06 Surface Preparation and FP‐14 203.05(a).

8/24/18

6 X There are several dumpsters in several parking lots, will the agency remove these dumpsters prior to microsurfacing?

The dumpsters will be removed and replaced by others. Micro surface around any obstructions that are not removed.

8/24/18

Check General or Technical

7 X

Half of Tioga Road appears to have quartz/granite in their asphalt concrete mix.

This is a slight concern that there may be an adhesion problem. Please advise.

Apply Micro Surfacing as per SCR Section 409 Micro Surfacing.

8/24/18

8 X Special Provisions 105.04 lists 3 locations for stockpiles could you provide a map with the location of each stockpile for reference.

Maps for the locations identified under Subsection 105.04 are not available.

Approximate Global Positioning System (GPS) Coordinates for the Badger Pass Ski Area Parking are 37°39'51.90"N, 119°39'49.30"W. Coordinates for the Sunset View Pullouts on Tioga Road, and the Pullouts along Big Oak Flat Road are not available. Please bid accordingly.

8/28/18

9 X

Bid item 63315‐0000 Rumble Strip does not specify when the rumble strips are to be installed. Please specify after what operation are they to be installed.

Install rumble strips after Micro Surfacing, and according to the limitations of Subsection 633.03A.

8/28/18

10 X

Bid Item 63401‐0000 Pavement Markings (Type B) Specification requires striping within 48 hours of placement is that for when a route is completed or per shift of placement.

It is for when a route is completed. 8/28/18

11 X

108.01 (f) – Where will the Environmental Protection briefing be held and how long will it take?

This information is not available. Please bid accordingly.

8/28/18

12 X Will new workers coming onto the jobsite be able to attend a one on one briefing?

Contact the CO to coordinate the briefing before starting work. One on one briefings will not be conducted.

8/28/18

13 X

If more than ¼ mile away from campsites, residence, hotel, lodge or occupied buildings, will the contractor be allowed complete closures of Tioga Rd and Big Oak Flat Road if performed during a night shift?

Subsection 156.08 specifies the construction operation hours unless otherwise stated in the contract. See Sections 108 and 156 for additional work windows available, as well as restrictions.

8/28/18

14 X Can the Quality Control Manager acts as the Traffic Control Supervisor simultaneously if the individual is qualified for both roles?

Yes. 8/28/18

15 X

635.13 – Will temporary pavement markings in the form of “floppies” be sufficient or will the contractor be required to provide temporary paint markings?

Follow the requirements of Plan Section E and Section 635 when using other temporary traffic control devices in lieu of temporary pavement markings.

8/28/18

16 X Will night time work be allowed on this project?

This will be addressed in a forthcoming amendment.

8/28/18

17 X

Is the contractor required to use a continuous machine, capable of laying and loading at the same time, to perform work on route 013 and 017? This is a concern since there are no turnaround spots for flow‐boys. Please advise if mobile truck mounts are acceptable on route 013 and 017.

This will be addressed in a forthcoming amendment.

8/29/18

18 X

Will the contractor be able to utilize, and close down parking lots for staging throughout the project that are not listed for phasing per 156.04?

In accordance with Subsection 105.04, staging is allowed at the Sunset View Pullouts on Tioga Road, and the Pullouts along Big Oak Flat Road. All other staging sites are to be approved by the CO after coordination with the CO, Yosemite National Park, and other Contractors.

8/29/18

19 X

Would the contracting agency consider pushing the bid date for this solicitation for MATOC contractors bidding on both this task order and task order DTFH7017R00014, since both bid only a day apart.

This will be addressed in a forthcoming amendment for solicitation numbers DTFH7017R00012 and DTFH7017R00014.

8/29/18

20 X

Question number 17 was not answered in the amendment. Can we expect another amendment to be issued to answer this question?

Yes. 8/31/18

21 X Does the contracting agency have any specifications for the Hydroblasting? At what pressure should the hydroblasting take place?

There are no specified pressures to use for hydroblasting. Perform the work and protect surrounding facilities according to Subsection 107.02.

8/31/18

22 x

Please consider changing back to truck mounted as previously specified by ISSA A143 in order to allow other companies such as ourselves to bid this project.

Provision of the self‐loading machine capable of loading material while continuing to lay micro surfacing in 409.5(a) is intended to optimize quality of product and efficiency of operation on the main line South Entrance Road of Yellowstone National Park and will not be changed.Truck mounted machines will be allowed for pullouts, driveways and approach road areas.

9/6/18