B08_Sol_Specifications.pdf
PDF 419 KB Posted
- Attached to
- EO14398 TRAIL AGGREGATE - GLBA Federal contract opportunity
- Solicitation number
- 140P9726Q0064
About this file
This document is a solicitation for the supply and delivery of Trail Surface Aggregate (TSA) to Glacier Bay National Park & Preserve. The National Park Service requires a minimum of 1,000 tons (approximately 800 cubic yards) of an aggregate mixture of fine and coarse crushed stone gravel suitable for trail surfaces. The TSA is designed for superior compaction and durability compared to traditional trail surfacing materials, featuring a uniform mixture of rock sizes ranging from 3/8-inch down to fine material. Bid proposals must include pricing for the base quantity of 1,000 tons and optional pricing in 250-ton increments for up to 1,000 additional tons (Options A through D). The aggregate must meet strict specifications including gradation requirements (ranging from 100% passing at 3/8" sieve to 6% maximum at #200 sieve), hardness limits (less than 40% loss per Los Angeles Abrasion test AASHTO T-96), pH range of 6.0 to 12.45 (EPA 9045C), plasticity index not exceeding 6 (ASTM D4318), soundness of 12% maximum loss (NA2SO4), and liquid limit of 25 or less. All material must be derived from natural stone formations and crushed parent rock free of clay balls, vegetable matter, and deleterious materials.
Contractor requirements include submitting aggregate extraction source and storage locations within 14 days of contract award, along with invasive plant contamination prevention measures. Prior to delivery, all aggregate must be proven free of invasive plants through either heat sterilization at 300 degrees Fahrenheit shipped directly without stockpiling, or through NPS inspection (conducted mid-to-late July with mitigation measures identified within 21 days). All contractor equipment used in the park must be cleaned of dirt, debris, and organic materials and maintained in sound mechanical condition. Delivery must be made to Glacier Bay's depot storage yard at coordinates 58°27'10.61"N / 135°51'19.50"W between September 1, 2026 and May 1, 2027. The park's barge landing ramp will be available for unloading with 72-hour advance notification required. Over-the-road delivery from barge to final location must occur between 7:00 AM and 7:00 PM with all traffic laws obeyed. A designated staging area accommodating up to four dump trucks will be provided at the barge landing site.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Sol_140P9726Q0064_Amd_0002.pdf | ||
| Sol_140P9726Q0064_Amd_0001.pdf | ||
| Sol_140P9726Q0064.pdf |
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Text version
National Park Service
Glacier Bay National Park & Preserve
Supply Trail Surface Aggregate (TSA)
Summary
The National Park Service (NPS) requires a minimum of 1000 tons, approximately 800 cubic yards, of an aggregate mixture of fine and course crushed stone gravel suitable for the surface of trails, delivered to
Glacier Bay National Park.
Trail Surface Aggregate (TSA) is designed for use as a wearing surface for trails. It is different from traditional materials used to surface trails such as “number 10’s”. TSA is designed to have a uniform mixture of a range of rock sizes from 3/8-inch all the way down to fine material. This uniform mix allows excellent compaction to achieve a higher in-place aggregate density than commonly used aggregates to resist wear and erosion.
Bid proposals shall include pricing for delivery of 1000 tons and shall include pricing for additional delivered product in increments of 250 tons, up to a maximum of 1000 optional tons beyond the base quantity of 1000 tons. The Government will have the option to purchase this additional product.
Aggregate Specifications
All TSA material is to be derived from natural stone formations. Stone is defined as rock that has been crushed; rock is defined as consolidated mineral matter. Both are restricted to that which has been mined or quarried from existing geologic bedrock formations. All components of the aggregate mix, including fines passing the #200 sieve, are to be derived by crushing parent rock material that meets TSA purchasing specifications for abrasion resistance, pH, Plasticity, and freedom from contaminants.
Determine the amount of particles less than #200 sieve size using the washing procedures PTM No. 100.
Crushed stone or crushed gravel, consisting of sound, tough, durable pebbles or rock fragments of uniform quality. Free from clay balls, vegetable matter, or other deleterious matters.
TSA GRADATION:
SIEVE SIZE TSA PERCENT PASSING
3/8” 100%
¼” 65%
3/16” 50%
1/8” 35%
1/16” 25%
#200 6% max
Aggregate Properties:
- Hardness: The acceptable limit as measured by weight loss is “less than 40% loss”. Los Angeles
Abrasion test, AASHTO T-96 [ASTM C 131] shall be used to determine this property.
- pH: Aggregate must be in the range of pH 6 to pH 12.45 as measured by EPA 9045C.
- Plasticity: Material must not exceed Plasticity Index (PI) rating of 6 by ASTM D4318 Standard
-Soundness ≤12% loss (NA2SO4)
-Liquid Limit ≤25
Prevention of the Introduction of Invasive Plant Species:
Within 14 days of contract award, the contractor shall submit the name and location of each aggregate extraction source and storage area along with any proposed measures to be taken to eliminate contamination by invasive plants. Prior to delivery into Glacier Bay National Park, all aggregate must be proven to be free of invasive plants either by heat sterilization (or) by NPS inspection.
To meet the heat sterilization requirement, aggregate must be heated to 300 degrees Fahrenheit to ensure sterilization of invasive plants and seeds. Aggregate sterilized by heating shall be shipped to
Glacier Bay National Park without being stockpiled in another location.
To meet NPS inspection requirements, aggregate sources must be approved by Glacier Bay National Park to be free from noxious weeds or invasive plant materials. Each source will be subject to NPS managed inspection. Inspections will occur mid to late July. Within 21 days of inspection, the NPS will provide an inspection report listing any mitigation measures required prior to delivery.
Contractor Equipment:
All equipment utilized on the grounds and/or roads in the Park must be cleaned of any dirt, debris and organic materials that could potentially harbor invasive plants or seeds. All equipment utilized on the ground and/or roads in the Park must be safe and in sound mechanical condition and free from significant fluid leaks and free from significant visible exhaust emissions.
Delivery of Aggregate:
Delivery shall be made to Glacier Bay’s depot storage yard, at the designated, flagged location, approximately (58°27’10.61”N / 135°51’19.50”W). The Park’s barge landing ramp (the gravel ramp east of the concrete small boat launch ramp) will be available for the successful bidder to utilize for facilitation of delivery. 72 hour notification is required prior to use of the NPS barge landing ramp. Over the road delivery from barge landing to the final delivery location must be made between the hours of
7am and 7pm, all traffic laws must be obeyed. A designated staging area for a maximum of 4 dump trucks will be available near the barge landing site, additional space will be available at the delivery site.
Delivery must be made between September 1, 2026 and May 1, 2027.
Bid Schedule
Base bid 1000 tons TSA
Option A 250 tons TSA
Option B 250 tons TSA
Option C 250 tons TSA
Option D 250 tons TSA
Location Illustration:
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