QnA 7 31 2020.pdf

Questions and Answers during Advertisement for

CA FTNP YOSE 14(7) REPAIRS ON WAWONA ROAD

July 22, 2020

Questions Answers 1 For rock dowels, can galvanized be used in lieu of epoxy coatings for the material?

For bars included under the rock dowels pay item 26002-0000, as per Subsection 722.03(g) Furnish steel with either fusion bonded epoxy coating or hot dip galvanizing for corrosion protection. Subsection 651.07 will be revised via an amendment to also allow fusion bonded epoxy coating or hot dip galvanizing for the mesh anchors included under pay item 65101-1000.

2 Does the bar need to be coated? The only note says to paint the bar afterwards, nothing about the bar itself prior.

See response to question 1 for bar corrosion protection requirements.

As per plan sheet G3, note 4: Nuts, washer, bearing plates and other exposed hardware shall be epoxy coated and painted brown as approved by the CO.

July 31, 2020

Questions Answers 3 How will final quantity for A0220 Roadway Excavation be determined? §§109.02(c) of FP-14 lists cross sectioning or volume in the hauling vehicle as acceptable methods?

Pay item A0220 20401-0000, Roadway Excavation is measured by the cubic yard in place as per Subsection 109.02(c)(1) and 204.16(a).

4 Spec does not state a laydown area for contractor other than pull-out at Wawona Rd & Glacier Point Rd parking/pullout. Are any other areas available to the contractor as a laydown?

Yes, as per Subsection 105.04 the Wawona Maintenance Yard at MP 5.5 is available for stockpiling material, and existing turnouts, pullouts, and parking areas near the work sites on Wawona Road (other than at MP 6.5 left and 23.3 left) may be used for staging and material storage, 5 Is there a location for the on-site lab? Will the contractor have access to permanent power for lab?

There is not an approved site for an onsite field laboratory. As per Subsection 154.04B the sampling and testing services of a commercial laboratory meeting or exceeding the requirements described herein may be used if all contract sampling and testing requirements are satisfied by the use of a commercial facility.

6 Is contractor able to leave equipment on-site? Yes, see Subsection 105.04 for allowable staging areas.

7 Is the park in Off-Peak season due to COVID? Yosemite National Park is currently operating under a temporary day-use reservation system. See the park website for more information:

https://www.nps.gov/yose/index.htm

8 Is contractor allowed to perform road closures at the different project locations simultaneously?

Yes, as per Subsection 156.07 maximum delays are for passage through the entire work limits on a single impacted roadway (and adjoining intersections) that is open to public vehicles. The total delay to any given vehicle shall not exceed the delay shown above (in Closure Limitations Table) even if the vehicle must pass through multiple work locations on the same roadway.

9 Will hand raking as described in FP14 §§403.08(b) be acceptable method for placing asphalt patches in all areas for item A0320 Asphalt Concrete Pavement Patch Type 2?

No, Subsection 403.08(b) only applies for non-roadway uses. A paver is required as per Subsection 403.08(a).

10 Please specify locations for temporary traffic control concrete barrier?

Pay item A0840 63503 -0400, Temporary Traffic Control, Concrete Barrier is to be used for temporary traffic control in accordance with the traffic control plan, Sections 156 and 635, and plan sheet T13. Also, as per Subsection 156.04 an alternate traffic control plan may be submitted for approval.

11 Will cross sections be required for payment on Waste? Yes, as per Subsection 204.16(e) waste is measured by the cubic yard in its final position.

12 Export quantities appear to be far greater than 1000 cy based on the other item quantities. The quantity appears to be around 1900

cy. Please advise.

As per Subsection 105.02(a) the materials generated from roadway excavation at MP 8.0 are available for use for Section 251 Riprap and/or Section 252 Special Rock Embankment. The quantities listed in the bid schedule are approximate. Payment will be made for the actual quantities of work performed and accepted according to the contract. See Subsections 102.02, 109.05 and 204.16.

13 The culvert crossing at 102+16 calls out for Type 2 repair. Since this is an open cut installation should the Type 1 repair be used?

An amendment will be issued changing the Asphalt Concrete Pavement Patching to Type 1 for the culvert locations at MP 19.6 and 20.3.

14 Please clarify dry application of wood fiber mulch, as it is intended to go through a hydroseeder, not applied “dry”

As per Subsection 625.08 mulch all areas by hand. Also an amendment will be issued clarifying that tackfier is to be applied using a 5-gallon hand pump or as directed by the CO.

15 Please advise what the advisory speed is for the W13-1P’s indicated on the construction sign summary on sheet B7

See plan sheets T10-T13 for temporary traffic control layouts.

16 Please advise what the footage will be on the W16-2P’s indicated on the construction sign summary on sheet B7

See plan sheets T10-T13 for temporary traffic control layouts.

17 Please advise if line items for temporary traffic control are to be paid separately for each set-up at each site or if line items are for TC at all sites

See Subsection 635.24 for measurement of temporary traffic control pay items.

18 Please clarify if the 15 working day limitation for road closures as described in §§156.07(k) at MP 8.0 on Wawona Road is for complete road closures to the public only, or if this includes setting up one-way traffic control as to keep the road open to the public.

One-way traffic control is not required at MP 8.0 during the allowable closure times as per the Table in Subsection 156.07(k). Also please reference Subsection 156.07(i) regarding traffic control requirements during potential emergencies within the Park.

19 Please verify if the Government or the Contractor pays for shipping samples to FHWA-Central Federal Lands Highway’s Laboratory (§§154.03 of SCR)

The Government pays for shipping of verification samples to the CFL Lab.

20 For estimating purposes, how much rock is expected to be utilized from MP 8?

The Contractor is advised to review all available information including the plans, Special Contract Requirements, and Geotechnical Memorandum.

Also, as per FAR 52.237-27 offerors or quoters are urged and expected to inspect the site where the work will be performed.

21 For estimating purposes, how much rock is stored at MP 18.7?

As per FAR 52.237-27 offerors or quoters are urged and expected to inspect the site where the work will be performed.

22 The specs say to salvage material from MP8.0 for use at MP18.7.

The spec calls for all unsuitable smaller material to be wasted at the Wawona Maintenance Yard. There is 3400cy of cut at MP8 and only 460cy to be placed at MP18.7. Are we able to take all of the material not being used or unsuitable for use to the Wawona Maintenance Yard?

As per Subsection 204.14 unsuitable material (rock and material less than 6 inches diameter) can be wasted at the Wawona Maintenance Yard. All waste material meeting these requirements can be wasted at the Wawona Maintenance Yard.

23 If we are unable to waste excess or unsuitable material at the Wawona site, can we waste the material at a local site in Oakhurst that is not an actual landfill or rock pit?

See response to question above. Also, as per FP-14 Subsection 204.14 dispose of other material according to 203.05(a).

24 At MP 8.00 can the boulders that are placed along the shoulder on the west side of the road be temporarily moved during constructions activities at this site to allow for truck turn-around space? The original location and placement of the boulders would be documented prior to moving them and at the completion of the work the boulders would be replaced in the same locations and orientations.

Yes, as directed by the CO during construction.

25 Section 156 Public Traffic of the Special Contract Requirements item (i) includes a table titled “YOSE 14(7) Wawona Road Closure Limitation Table” which appears to show the limitations for single lane closures and maximum delay times. Item (k) of this section also includes a table which indicates that Wawona Road at MP 8.0 may be closed to public traffic during the Off- Peak Season Monday – Friday from 8:00 am – 12:00 pm and 1:00 pm – 5:00 pm for a maximum of 15 working days. When the road is open to public traffic between 12:00 pm and 1:00 pm can it be open to one-way alternating traffic using only one lane? Or does it have to be open with two lanes – one going in each direction – during this one-hour window?

The Road Closure Limitation Table in Subsection 156.07(i) (page E-35) would apply during those times at MP 8.0.

26 SCR Section 156 – Public Traffic, Paragraph 156.07(i)(k). Would the FHWA consider added road closures for operations on Wawona Road at MP 8.0 beyond the fifteen (15) working days currently specified, if an approvable work plan is submitted by the Contractor? What is the reason for the fifteen (15) working days limitation?

Road closures at MP 8.0 are allowed at the times shown per the Table in Subsection 156.07(k) (page E-36) for a maximum of 15 working days. The Road Closure Limitation Table in Subsection 156.07(i) (page E-35) apply at all other times for work at MP 8.0.

27 SCR Section 108 – Prosecution and Progress, Paragraph 108.01(f). “The contract completion date is November 24, 2020.”

What is the reason for this date as the final completion of the contract and would the FHWA consider added working days beyond this date?

No, the completion date is 11/24/2020.

28 Drawing Sheet C1. What are the limits for the access of the MP

8.0 Rock Slope Repair Site outside of the ROW boundaries limits shown on Drawing Sheet C1? The Contractor will require access to the work area from both the Northwest and Southeast ends of the MP 8.0 site. Please advise.

Waiting on Pieper response

29 Are there any restrictions or conditions under permits issued by Federal, State or local government entities for the project not currently incorporated into the contract bid documents? If so, please provide the permits.

There are no other permits.

30 Where is the nearest water source to the project? Does the water source have suitable flow volumes for filling a water truck? We will need water for both construction activities and for fire prevention.

See Subsection 105.02(a).

31 Please confirm if the contractor is allowed to stockpile excavated rock for special rock embankment at the Wawona Road and Glacier Point Road intersection parking area.

Yes, the contractor can stockpile excavated rock material at

32 MP 8.0 has 3400 cy of excavation, of which 1000cy is waste and 460 is supposed to be salvaged for use as special rock embankment. Where does the remaining 1,940 cy of material go?

Should all the costs of dealing with the material go under the excavation item? Why is the waste item only 1000cy?

The quantities listed in the bid schedule are approximate. Payment will be made for the actual quantities of work performed and accepted according to the contract. See Subsections 102.02, 109.05 and 204.16.