Q&A_12-31-19.pdf

WA NPS OLYM 2017(1)

Spruce Railroad Trail Segment B

# General Technical Question Answer Date

1 X The Final Geotechnical Report is missing the Appendixes‐ Will those be made available for review?

A link to the file with the appendices will be provided for this project on beta.sam.gov, and the link to the report without the appendices will be removed.

12/4/19

2 X Is this Solicitation being advertised as a Full and Open Contract or a Small Business Set Aside?

This Solicitation is being advertised as a Full and Open Contract.

12/10/19

3 X

Item #5521‐0200 & 55401‐1000 are being measured as contract quantity‐ but if the contractor has to do the design and submit, why is the quantity not being paid as actual quantity instead of contract quantity?

Bid Items 55201‐0200 and 55401‐1000 are for the foundation that’s been designed and is shown on the plans.

12/11/19

4 X

Item 30120‐2000 Roadway Aggregate is being measure contract quantity‐ there are previous parts of the trail which have less than design thickness of roadway aggregate‐ is this item being used to bring it all up to depth and if so can the item be measured per ton? Or provide accurate cross‐sections so we can verify the quantity?

The unit of measure for Base Schedule Bid Item 30201‐2000 will not be changed, and additional information will not be provided.

Bid accordingly.

12/11/19

5 X

Option Z‐ Item #30201‐2000 Roadway Aggregate, Method 2 is being measured as contract quantity but the typical section says it varies‐ can you provide a better section for the aggregate or make it per ton?

The unit of measure for Option Z Bid Item 30201‐2000 will not be changed, and additional information will not be provided.

Bid accordingly.

12/11/19

Check General or Technical

6 X

Traffic Control Flagger‐ The Lyre River Parking Area gets very busy, even with the road closed you get lots of people trying to enter the trail‐ why no flagging in the contract?

Bid accordingly. 12/11/19

7 X

Plan Sheet I.2 calls for weathering steel but there are references to paint on this sheet and in the specifications too. Can you confirm the structural steel material type?

This will be addressed in a forthcoming amendment.

12/11/19

8 X Regarding Plan Sheet I.2, can you clarify what bolted connections must be slip critical?

Design the bridge and bolt connections according to Subsection 555.03A.

12/11/19

9 X

Subsection 555.03A(a) says: “Coat all steel components with shop‐applied inorganic zinc primer or hot dip galvanize.

Completely coat all steel, including top surface of girder flanges.” Is shop applied inorganic zinc primer to be considered equal to hot dip galvanized? If supplied with shop applied primer only will field painting be required? Please clarify final finish requirements/options.

This will be addressed in a forthcoming amendment.

12/11/19

10 X Q&A 12‐04‐19 states that a new link will be provided that publishes the Final Geotech Report. When will this be provided?

Response not posted. Helped bidder navigate beta.sam over telephone.

12/17/19

11 X Will the government allow the use of couplers while testing Rock Bolts?

See Subsection 260.06(b). 12/18/19

12 X

Will the government allow the contractor to have the Rock Bolt and Dowel material (bar) pre cut to length during the manufacturing process?

See Subsection 260.06(a). 12/18/19

13 X Will the contractor have to order the bar for bolting and dowels in maximum commercially available bar lengths?

Order bar lengths to meet the contract requirements.

12/18/19

14 X Based on the limited work area on both sides of the tunnel will the government allow the contractor to use couplers for Rock Bolts?

See Subsection 260.06(b). 12/18/19

15 X

The specifications (page F‐30) reference a vertical picket safety system, yet the plans (sheet I.7)detail a horizontal rail safety system.

Can you please clarify which safety system the bridge should be provided with?

This will be addressed under a forthcoming amendment.

12/18/19

16 X

The specifications (page F‐31) state that only an AISC Simple Bridge Certified Fabricator (SBR) certification is required for this project.

Typically, a structure of this magnitude would require the fabricator to be at least certified as a Major Bridge Fabricator (IBR or ABR) per AISC.

Can you please confirm the fabricator requirements?

This will be addressed under a forthcoming amendment.

12/18/19

17 X

The design loads on sheet I.2 calls for an AASHTO H‐12 load. This load designation does not exist within AASHTO can you please clarify the required live load that this bridge needs to be designed too?

This will be addressed under a forthcoming amendment.

12/18/19

18 X

The design loads on sheet I.2 calls for an AASHTO H‐12 load. This load designation does not exist within AASHTO can you please clarify the required live load that this bridge needs to be designed too?

Revised Response to Question #17. Design is per AASHTO LRFD Bridge Design Specifications current edition and AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges current edition. See AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges Figure 3.2.1 for the base designation of H‐12 truck. Live Load is per AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges Section 3, using loads specified on sheet I.2 and SCR Section 555.03A Design sub‐section (b).

12/19/19

19 X

On sheet number G.3, Notes 4. This section discusses applying anchored wires mesh with Rock Dowels. Will government provide a line item which indicates the total LNFT of Rock Dowels to pin the 120 SQYDs of anchored wire Mesh?

No. Bid according to the contract requirements.

12/19/19

20 X

Will the interior dowels for the Anchored Wire Mesh System (A1000) need to be tested? If they do, what will be the total design load for the 5' Dowels?

See Subsection 260.11. 12/19/19

21 X What is the total LNFT of Weep Holes to be drilled?

This will not be provided. Bid according to the contract requirements.

12/19/19

22 X

There is no H12 designation in Figure 3.2.1 of the AASHTO LRFD Guide Specifications for the Design of Pedestrian Bridges. That figure includes an H10 and H5 vehicle. Can you please clarify your response?

There is no H12 designation; however, common practice is to extrapolate from the other designations shown.

12/19/19

23 X

Item 60504‐0000 Geocomposite Sheet Drain System‐Sheet G.3‐ Under Notes says locations will be Identified by the CO‐ is the weep holes, mesh, dowels and sheet drain all part of the system? Seems very vague on the items and leaves it all to the CO at the time of installation‐ hard to bid that. Especially the sheet drain‐ to identify and order the materials could be a large delay.

Item 60504‐0000 does not include shotcrete, mesh, or dowels. Bid the contract quantities.

12/20/19

24 X Sheet G.1 The 710 lf of weep holes that are incidental both the 3” and 4” shotcrete is that 1420 lf total or just 710 lf of weep holes?

See Plan Sheet G.3. 12/20/19

25 X

Thank you for the clarification, can you please confirm the below assumed axle loads and spacing? H12 Vehicle (24,000 lbs GVW) Vehicle Load: The load shall be distributed as a four‐ wheel vehicle with 80% of the load on the rear wheels. The wheel track width of the vehicle shall be 6’‐0” and the wheel base shall be 14’‐ 0”. As this is not a standard vehicle, we just want to make sure the bridge is designed is properly.

Bid accordingly. Submit documents for approval after contract award according to Subsection 104.03.

12/23/19

26 X

Are there any trees to be removed for trail construction? There are several stumps throughout the construction zone, we’re all of the necessary trees removed for the project?

See Section 201 and bid accordingly. 12/26/19

27 X Does the contract quantity of 26 cuyd account for the timber facade footings? Or are those footings incidental to the timber facade?

No. There is no direct payment for the timber façade footings. See Subsection 109.05.

12/26/19

28 X How are the MSE Walls Excavation Paid for? Is it incidental to item 25501‐1000 or paid for under Roadway Excavation Item 20401‐000?

In accordance with Subsection 255.03 of FP14, perform the work according to Section 209. See Subsection 109.05 for Scope of Payment.

12/31/19

29 X Is Structure Excavation for the Bridge Only?

According to the plans, Structure Excavation is a pay item that provides direct payment for the quantity of structure excavation shown under Plan Section I. See Subsection 109.05 for Scope of Payment.

12/31/19

30 X

Please clarify if all excavation required to construct the MSE walls is to be paid under Roadway Excavation (Pay Item 20401‐0000) or Mechanically Stabilized Earth Wall (Pay Item 25501‐1000).

In accordance with Subsection 255.03 of FP14, perform the work according to Section 209. See Subsection 109.05 for Scope of Payment.

12/31/19

31 X Sheet H.1 – show information quantities for the MSE walls. How did the government come up with the Rock Excavation quantity?

This information will not be provided. Bid accordingly.

12/31/19

32 X Sheet H.1 – show information quantities for the MSE walls. Is payment for Rock excavation incidental to the MSE Wall?

See Subsection 109.05(b). 12/31/19

33 X

Sheet H.1 – show information quantities for the MSE walls. Typically the government has an informational structural Excavation quantity‐ was that calculated?

This information will not be provided. Bid accordingly.

12/31/19

34 X

Page F‐11 ‐ Section 260.08 (a) Drilling ‐ It states we drill a uniform‐diameter hole a minimum of

3.5 inches in diameter for rock bolts; and drawing J.41 Footnote 2 ‐ states the drill hole diameter, bar size, and minimum bond zone length to be determined by rock bolt contractor.

Question ‐ Is the diameter of the drilled hole for the rock bolt 3.5 inches or are they designed by the contractor?

Subsection 260.08(a) on Page F‐15 does not require drill holes to be 3.5 inches in diameter. It requires providing equipment that can drill straight, uniform‐diameter holes at least 3.5‐inches in diameter and 40‐ feet long for rock bolts and rock dowels.

Bid according to the contract.

12/31/19