QnA 11.06.23.pdf
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- Solicitation number
- 6982AF23B000021
About this file
This document contains questions and answers regarding Solicitation Number 6982AF23B000021 for the WY FLAP NAT 505 & BL 6409(1) Casper Mtn Cir Dr & Muddy Mtn Rd project for the Department of Transportation Federal Highway Administration. The questions and answers provide clarification on aspects of the project such as confirming slope staking will not be required and the road can be adjusted with approval to ensure proper catch points. Additional questions addressed pavement thickness, project timelines, material transfer vehicle requirements, access to private lands for surveys, vegetation removal timeframes for migratory bird surveys, use of a hot plant onsite, available water sources, and responsibilities for providing power and utilities.
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Questions and Answers during Advertisement for WY FLAP NAT 505 & BL 6409(1) Casper Mtn Cir Dr & Muddy Mtn Rd
November 6, 2023
Questions Answers 1 Please look at sheets B3-B5 (Summary of Quantity Sheets for
Option X and Y). It appears that there is some type of coding error in printing or drafting. None of the words or numbers appear to be correct.
Please refer to amendment A001.
2 Since there are no design grades shown on the plans, will the slope staking be required? There are portions of this road that are very steep and will probably not have a catch point. Will the road be constructed off the reference stakes that are discussed in the Construction Staking section?
Slope staking will not be required.
The roadway alignment can be adjusted with CO approval to ensure proper catch is achieved.
Yes, the road will be constructed off of the reference stakes, and adjustments to the alignment can be made with CO approval to ensure proper roadway bench and ditch width.
3 The Typical Section in Schedule A for new pavement shows a 2” thickness of asphalt. This seems very thin for the following reasons:
A. The type of traffic that is on this area is public and can include any type of vehicle including trucks and large campers.
There will be high torque from braking and climbing in these areas which will likely cause rutting and creep.
B. The steepness of the areas will make it almost impossible to construct and achieve compaction without shoving and cracking the asphalt.
C. The type of asphalt binder specified for this project is a very soft oil and produces a very tender asphalt mix. This will magnify the issues listed above both from a constructability standpoint and a long term durability standpoint.
D. It is very difficult to achieve the proper yield with a 2” mat on grade with the steep sections of road.
A thicker section would be relatively cheap for the additional tons needed and the added benefits to the owner would include less maintenance and a much longer life. Would the government consider a thicker section of asphalt?
No, 2” of asphalt concrete pavement is the contract requirement, as shown in the typical sections.
4 Would the government consider a longer time frame on this project? Our company is currently working on a much smaller FHWA project in Wyoming in a similar setting that has a two season time frame. The time restraints on this project seem extremely short.
No, the construction schedule is based on Schedule A, Option X, Option Y, and Option Z being constructed at the same time.
5 Could the Material Transfer Vehicle requirement in SCR section
401.05 be removed from Schedule A? It seems unnecessary for the type of paving required and the small quantity. Especially if only Schedule A is awarded.
No, an MTV will be required.
6 Raptor Surveys
• Will there be access to private lands or will we be limited to the ROW and public lands only?
• What is the planned timeframe for this work? We assume one survey 2 weeks before the start of construction will be sufficient for the 12-mile project, but if there are any delays or pauses expected in the work, we would need to conduct an additional survey.
• Do not obtain private property access outside of the work area. The Government expects the work to primarily be conducted from the roadway/work area, using binoculars or other means to look further out.
• Contractor to determine the survey schedule based on work activities, see Section 107.
7 Migratory Bird Surveys What is the timeframe for removal of vegetation within the disturbance footprint? Surveys must be completed within 1 week prior to the removal of any vegetation. If mowing/stripping is completed all at once, one survey trip may be sufficient. If it will be done in sections depending on the progress of the work, multiple visits may be needed to be accounted for to conduct these clearance surveys.
Contractor to determine survey schedule based on work activities, see Section 107.
8 Is a hot plant allowed onsite? There are no designated areas to place a hot plant.
9 Is there a known water source? There are no designated water sources. The contractor is responsible for sourcing water.
10 Is contractor or owner responsible for providing power and utility connections to lab and trailers?
See Section 637, Contractor to provide utilities to field office trailer. Lab trailers are not provided by the government.
11 Can we pulverize and blend the 4100 SY of asphalt removal in schedule x?
No, soils are classified as A6.
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