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Project Info
Order Number UPC State Project Number Last Date to Post Questions
C95 114867 9999-964-857, D601-D603 7/17/2020
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Subject: Special Provision for Pipe Rehabilitation - Depth of Cover Needed Type: Specifications
Question Date: 7/7/2020 5:36:26 PM
Could you please provide the depth of cover for each pipe section being rehabilitated via spray-on liner? This is essential information for bidders to formulate their design liner thickness.  
Answer   Date: 7/8/2020 12:37:48 PM
The following are depth of cover for the different routes Rte 150 - 30' fill Rte 301 - 8' fill Rte 764 - 6' fill  
 
Question Date: 7/8/2020 6:25:30 PM
Can you please provide the inspection reports for these segments? A response below states that they can be provided after award, it would be advantageous to provide all necessary details prior to bid. Thank you.  
Answer   Date: 7/10/2020 12:53:08 PM
Structure inspection reports are available to view at the Richmond District Office at 2430 Pine Forest Drive, Colonial Heights, VA 23834.  
 
Subject: Ability to Prime Type: Specifications
Question Date: 6/25/2020 9:19:20 AM
This is a set aside project that only small business can prime, correct? or is it open to anyone to prime?  
Answer   Date: 6/25/2020 10:28:44 AM
This projected has been selected as a VDOT SMALL BUSINESS ENTERPRISE PROGRAM and all prospective bidders must adhere to the applicable Special Provision.  
 
Question Date: 7/13/2020 8:46:30 AM
Form C-7DD page 1 - States that (Only available to VA Small Business Enterprise Certified Vendors) - Please confirm that Prime Bidders MUST be VDOT Small Business Enterprise Program Certified to bid.  
Answer   Date: 7/13/2020 12:21:48 PM
Yes, that is correct.  
 
Subject: Questions regarding specifications Type: Specifications
Question Date: 6/24/2020 7:11:08 PM
1) What is the minimum and maximum thickness of the spray-on liner? If the design thickness is determined by an applicator/installer, is the DOT considering allowing a contractor to determine their pipe design? If min/max thicknesses are not known and are driven by the applicator's specific cementitious/geopolymer material, how were the hydraulics calculated if thicknesses can vary? 2) What AASHTO design methodology is used to determine liner thickness and burial depth? What AASHTO Chapter is referenced to design spray applied liners? 3) Would VDOT consider allowing method B Cat C- HDPE pipe liner provided the flows can be matched? Can the DOT provide flow calc information for us to try and mimic? What would be a minimum allowable HDPE liner size? 4.) Are there photos or inspection reports available for the various pipes?  
Answer   Date: 6/30/2020 1:00:53 PM
Please refer to the Special Provision for Pipe Rehabilitation. This contract is specific to Category D Spray-On liners; other methods or categories will not be allowed under this contract. Flow calculations are not available. Inspection reports can be provided after award.  
 
Question Date: 7/8/2020 1:02:29 PM
to do a proper liner design you gave the depth of cover in the first RFI, however we also need to know depth of water table, should we assume it is at the top of pipe? also what % ovality should be used? Shale we assume 0% for all the pipes?  
Answer   Date:
 
 
Question Date: 7/4/2020 1:37:20 PM
How can we access to the project sites? There are three different locations far apart from each other. At Chesterfield county location it was surrounded by businesses. We need to have legal access point to go to the site. Please provide VDOT approved permit to enter into these locations. How do our equipment unload and access to the site?  
Answer   Date: 7/10/2020 2:31:35 PM
Images of R/W limits have been uploaded to ProjectWise for review. The Contractor is responsible for obtaining all access to private property.  
 

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