Amend_0001_Q_A_0001.pdf
PDF 136 KB Posted
- Attached to
- AZ Aggregate Rock Base IAW Scope of Work
- Solicitation number
- 140L1224Q0025
About this file
This document is a set of Questions and Answers related to Solicitation 140L1224Q0025 for the purchase of Aggregate Rock Base by the Bureau of Land Management (BLM) Arizona State Field Office.
The key details are:
- The BLM will accept a MAG spec ABC (Aggregate Base Course) as an alternative to the ADOT (Arizona Department of Transportation) Class 2 specification referenced in the Statement of Work.
- The material is to be delivered via belly dump trucks and placed in a windrow, with no subgrade preparation or compaction required by the contractor.
- The quantity is specified as 6,500 cubic yards, though the government indicates this should likely be 6,500 tons to avoid issues with weight limits.
- The contract will be a firm-fixed-price award using Simplified Acquisition Procedures, with a Lowest Price Technically Acceptable evaluation.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Sol_140L1224Q0025_Amd_0001.pdf | ||
| B08_Attach_1_Scope_Of_Work.pdf | ||
| Sol_140L1224Q0025.pdf |
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Text version
AZ Aggregate Rock Base, #140L1224Q0025
Questions and Answers
Would the government consider accepting a MAG spec ABC as opposed to ADOT Class 2?
There is a pit relatively close to the site that has MAG ABC.
A MAG Spec is acceptable.
The scope of work references specification 321126 under item 1. UFGS 321126 is for a Hot Mix Bituminous Base Course. Will you please provide the intended specification?
We are referencing the spec provided, not the one the contractor is referencing. If one looks at the written spec, # 321126 Aggregate Base Course; it is actually the last entry in the spec document provided. It is also noted in the table of contents.
Is material to just be delivered or delivered and "loosely spread?"
The material is to be released via a belly dump truck in a windrow.
Are there any subgrade preparation requirements prior to placing/delivering ABC?
The contractor will not make any subgrade preparations. BLM staff will do that.
What is the final placed depth of ABC?
Final placed depth in 6 inches
Are there any compaction requirements for the "loosely spread" ABC?
No, Compaction will be at 95% but that will be done by BLM staff not the contractor.
It states that the belly dump trucks should have a minimum load capacity of 20 cubic yards. The conversion factor on aggregate base is 1.8 tons per yard, therefore 20 yards would equal 36 tons which is about 150% of the legal weight limit per Arizona Bridge law.
Most Belly dumps carry 25 tons which equals 13.88 cubic yards per load.
Should the quantity read 6500 tons rather than cubic yards or should it be 6500 tons?
Please clarify.
We cannot specify just the weight otherwise the contractor can simply "wet down" the load.
Maximum load on an AZ bridge is 80,000 lbs. That is providing they have the correct number of axles.
Does the material need to be knocked down or just left in stockpiles?
Place material in a windrow. This is a standard practice for bringing gravel to a sight.
SOW states 20cy trucks, is this meant to be 20tn?
The truck should be sufficient to carry 20 cubic yards of material. They will need to determine this based on the density of the material they plan to use.
Being that weight tickets will be provided, how many tons are needed?
It is standard practice to receive a materials report from the contractor prior to operations. This materials report will specify the density along with the moisture content. That will determine how many tons of material are needed to satisfy the volume of material required.
File details come from the government source that posted it. Updated .