4-1. Highway Chip Seal Aggregate Specifications.pdf
PDF 281 KB Posted
- Attached to
- Highway Chip Seal Aggregate
- Solicitation number
- BID-261-26
- Issued by
- Boulder County, Colorado
About this file
This document contains the aggregate specifications for Bid 261-26, a formal solicitation issued by Boulder County, Colorado for the supply of fractured rock chips to support the county's summer chip seal program. Boulder County seeks qualified vendors to provide approximately 3,300 tons of fractured rock chip material that meets CDOT specifications 703.05 for material quality and qualifies as either Type II or Type I aggregate size per CDOT Table 703-7. The material must be clean, durable, and free of excess fines or deleterious substances. Vendors should provide information regarding their available start date for material supply, required lead time prior to first delivery, typical daily or weekly delivery capacity, whether delivery can be continuous or on-call, and any seasonal constraints or service limitations.
Vendors are required to submit pricing for the 3,300-ton aggregate order along with separate trucking and hauling rates, including cost per ton or per load, fuel surcharge details if applicable, and any additional fees for loading or standby services. All bids must include company name and primary point of contact, material source and location, the specified pricing, delivery and trucking capabilities, lead times and availability, and any exceptions or clarifications to the specifications. The CDOT 703.05 specification requirements include that aggregates shall be composed of clean, tough, durable fragments with a maximum wear rate of 35 percent on the Los Angeles Abrasion Test, no more than 12 percent flat and elongated aggregate with a 3:1 ratio, and at least 90 percent by weight of particles retained on the 4.75 mm sieve must have at least two fractured faces when tested per Colorado Procedure 45.
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Other files
| File | Type | Posted |
|---|---|---|
| 3-2. Boulder County Bid Tabulation.xls | XLS spreadsheet | |
| 1-Vendor Information for Bonfire - Fillable.pdf | ||
| 2-3. Public Opening Information.pdf |
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Text version
Specifications for BID-261-26
Introduction:
Boulder County is soliciting formal bids from qualified vendors for the supply of fractured rock chips to be used in the County’s summer chip seal program. The material must meet CDOT specifications 703.05 for material quality and must qualify as Type II or Type I in material size as specified in CDOT table 703-7. Please specify material cost per ton as well as trucking rates in the event we need the material hauled on our behalf.
Vendors are invited to submit pricing, availability, and service details according to the specifications outlined in this document.
Material Specifications:
All aggregate material must meet the following requirements:
• Must comply with CDOT Specification 703.05 for material quality.
• Must qualify as Type II or Type I aggregate size as defined in CDOT Table 703-7.
• Material shall be clean, durable, and free of excess fines or deleterious substances.
Quantities:
Boulder County anticipates purchasing an estimated 3,300 tons of fractured rock chips for the summer chip seal season. Actual quantities may vary based on program needs.
Vendors may specify minimum order quantities if applicable.
Pricing Requirements Vendors shall provide the following pricing:
• Cost for 3,300 tons of fractured rock chip material meeting the required specifications.
• Trucking/hauling rates, including:
– Cost per ton or per load
– Fuel surcharge details, if applicable
– Any additional fees (loading, standby, etc.)
Bid Tabulation:
Item Quantity Total Fractured Rock Chips
3,300 Tons
Delivery Fee per ton in the event we need the material hauled on our behalf.
Per Ton
Delivery and Schedule Boulder County is requesting information regarding delivery capabilities. Vendors should describe:
• Available start date for material supply.
• Lead time required prior to first delivery.
• Typical daily or weekly delivery capacity.
• Whether delivery is continuous, scheduled, or on-call.
• Delivery locations that can be serviced (County-maintained stockpiles, project sites, etc.).
• Any limitations or seasonal constraints.
Vendor Submittal Requirements All bids must include:
• Company name and primary point of contact
• Material source and location
• Pricing as outlined above
• Delivery and trucking capabilities
• Lead times and availability
• Any exceptions or clarifications to the specifications
CDOT: Specifications 703.05 and Table 703-7
703.05 Aggregate for Cover Coat Material:
Aggregates for cover coat material shall be crushed stone, crushed gravel, or natural gravel.
Aggregates shall be composed of clean, tough, durable fragments free from an excess of flat, elongated, soft, or disintegrated pieces and free from fragments coated with dirt or other objectionable matter.
The aggregate shall conform to the following requirements:
The percentage of wear, Los Angeles Abrasion Test (AASHTO T 96), shall not be more than 35.
The maximum amount of flat and elongated aggregate with a ratio of 3:1 shall not exceed 12 percent as determined by ASTM D4791.
Type I, II, or IV cover coat material, 90 percent by weight of the particles retained on the
4.75 mm (No. 4) sieve shall have at least two fractured faces when tested per Colorado Procedure 45.
| Specifications for BID-261-26 |
| CDOT: Specifications 703.05 and Table 703-7 |
File details come from the government source that posted it. Updated .