2026 Gravel Crushing Services

INVITATION TO BID
Bid Package
Montrose County
2026 Gravel Crushing Services
Bids Due and Opening
Tuesday, April 21, 2026
Time 2:00 p.m.
Location
Montrose County Public Works Office
63160 LaSalle Rd
Montrose, CO 81401
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General Conditions
Montrose County is accepting sealed bids for 2026 gravel crushing services. In general, work will
consist of crushing approximately 180,000 tons of aggregate product in various pits operated by
Montrose County.
Bid Packages can be downloaded from Montrose County's web site using the following link:
https://www.montrosecounty.net/Bids.aspx. For further information, please contact Curtis
Milton at 970-252-7003 or e-mail at cmilton@montrosecounty.net.
Bidder Instructions
Submitted bids must be enclosed in a sealed opaque envelope marked "2026 Gravel Crushing
Services Bid" with the name of the bidder and delivered to Montrose County Public Works, Attn:
Brandon Wallace, 63160 LaSalle Rd, Montrose, CO 81401, no later than Tuesday, 2:00 pm local
time, April 21, 2026. The bids will be opened immediately thereafter and read aloud. Bids
received after the time due will not be considered and will be returned to the bidder un-opened.
A 5% bid security is required with the bid as outlined in C.R.S. 24-105-201. The bid security
shall be placed in a separate envelop marked "Bid Security" that is either attached to the
outside of the bid envelope or placed in a larger envelope that contains both the sealed bid envelope
and the bid security envelope. Bids not including a bid security will not be considered and will be
returned to the bidder un-opened.
Bids are to be submitted on the Bid Forms included within the bid package. Bidder must provide
the Unit Bid Price, Bid Item Amount and Total Bid Price on the Bid Schedule Form. In case of
discrepancy on the Bid Schedule Form, the Unit Bid Price governs.
Any bid questions must be received by 2 pm local time on April 13, 2026.
Any modifications to the Invitation to Bid package will be an Addendum and posted to the County
website by 5 pm on April 14, 2026 and distributed to all known bidders. It is the responsibility of
the bidder to verify if an addendum has been issued. Bidder shall acknowledge Addenda in the
Bid and Addenda Acknowledgment section of the Bid Form.
General Conditions
All bids shall be irrevocable for 45 days from the date of the bid opening.
The successful bidding Contractor will be required to enter into an agreement with Montrose
County. A sample copy of the agreement is included in this bid package. The final contract
negotiated with the successful bidder may be modified from this sample.
A payment and performance bond equal to 100% of the bid amount will be required as outlined in
C.R.S. 38-26-106 and the contract agreement for the successful bidder.
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Contractor shall carry insurance coverage as outlined in the contract agreement.
Payment to Contractor will be made upon submission and approval of invoice(s). Payment will
follow normal County payment processing cycles for issuance of checks.
Montrose County will pay all royalties that pertain to pits leased by the County.
Awarding of Bid
Award may be made to the lowest responsive, responsible bidder meeting applicable county and
state procurement requirements. In reviewing the bids received, the County reserves the right to
reject, for any reason whatsoever, any and all bids, and to waive any informality or irregularity in
a bid. The County reserves the right to accept the bid that provides the best value to the County in
the County's sole discretion. The County reserves the right to make a determination in the County's
sole discretion as to the sufficiency of qualifications of any bidder. The action to award a contract
is subject to approval by the Board of County Commissioners. The submission of a bid does not
in any way commit the County to enter into an agreement or contract with that bidder.
Bidder must identify for non-disclosure purposes, any information contained within the proposal
that is proprietary in nature or protected by copyright, trademark, or other intellectual property
law. Montrose County will maintain confidentiality of such materials to the extent permitted by
law, the County is subject to the provisions of the Colorado Open Records Act (CORA), C.R.S.
24-72-201, et seq., and cannot therefor guarantee that any materials provided will not be produced
in response to a CORA request.
It is anticipated that award of the contract will be made within three (3) weeks of the bid opening.
All bidders will be notified of the Commissioners decision. A purchase order will be used for
authorization to proceed.
Required of Successful Bidder
A payment and performance bond equal to 100% of the bid amount will be required as
outlined in C.R.S. 38-26-106 and the contract agreement
Contractor shall provide a copy of all necessary APEN Permit(s) issued by CDPH&E
Contractor shall provide proof of currency and compliance with MSHA Training Part 46.
Furnish certificates of required insurance coverage.
Furnish a completed Form W-9 "Request for Taxpayer Identification Number and
Certification".
Enter into a contract agreement with Montrose County.
Furnish an Equal Employment Opportunity Certification letter.
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Additional Terms and Scope of Services
1. The gravel crushed shall meet the Gravel Crushing Sieve Specifications as shown on
Attachment "A".
2. The Thompson Pit is located adjacent to the Neal Pit. Crushing will be continuous between
the two pits. Since the Neal Pit is leased, quantities of material crushed in the Neal Pit will
need to be tracked separately from the Thompson Pit material.
3. Material Testing:
a. Contractor shall have a qualified, independent laboratory perform a sieve analysis
test at approximately 500 tons at the beginning of each crush, and thereafter shall
run additional tests at approximately 3,000 ton intervals. Sieve analysis test and
fractured face test results shall be given to the County Public Works Director or
designee by end of business the work day following the sample day.
b. Material codes 509 and 510 require an Atterberg Limits (plasticity index) test per
ASTM D4318 conducted in conjunction with each sieve test. Plasticity Index tests
results shall be provided within three working days of the sample day.
c. All testing costs shall be the responsibility of the contractor. Montrose County may
perform additional tests at its discretion and will bear the cost for such additional
tests.
4. If a product is found to be out of specification on any test, and the contractor fails to meet
specifications with any subsequent test, the County shall have the option to:
1) Stop all crushing operations until the Contractor makes necessary corrections and
can prove that specifications are being met;
2) Negotiate a reduced compensation for the out of specification product.
Compensation for the out-of-specification material shall be paid at a rate not to
exceed 50% of bid price;
3) Have the out-of-specification material reprocessed into a usable product that meets
a different specification. Contractor shall only be paid at the bid unit rate for the
reprocessed specified material. No payment will be made for the initial out-of-
specification material;
4) Request that additional material be crushed at contractor's expense to make up for
the out-of-specification material;
5) Any combination of the above.
6. Consistent out-of-specification performance shall be sufficient grounds for termination of
the contract and claim for damages including claims against contractor's bond.
7. All gravel shall be measured using certified belt scales placed after the screen in the
crushing circuit to capture the pay quantity(s). The County Public Works Director or
designee shall be present for verification of the belt scale readings. Contractor shall notify
the County Public Works Director or designee at least 24 hours in advance of a belt scale
reading.
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8. Scales shall be certified by a third party prior to the first crush in each pit.
9. Scale recertification will be done after half of the material is crushed in each pit and after
each move within a pit. The recertification may be done using a County truck load of
crushed material weighed at a separate certified scale. If scale agreement is not obtained
after weighing three (3) truck loads, the contractor shall have a third party recertify the
scales.
10. Locations and quantities to crush are outlined in the Estimate of Gravel Crushing
Quantities per Location as shown on Attachment "B".
11. The order and priority for County gravel crushing operations shall be determined by the
County Public Works Director or designee, and may be negotiated with the Contractor with
an attempt to minimize the number of moves for the crushing equipment.
12. Extraction locations and placement of stockpiles will be at the direction of Montrose Public
Works Director or designee.
13. Montrose County will remove overburden and level a pad for the crusher prior to the crush;
and push down high walls, slope/re-grade disturbed areas after crushing operations have
ceased.
14. *Contractor shall push pit run to the crusher, maintain high walls during crushing
operations, and move additional dirt within the pit as needed to meet the specification for
dirty road base.
15. If necessary to meet gravel specifications, Montrose County will haul and stock pile
dirt/fines not available at the pit site to an agreed upon location within the pit prior to
crushing.
16. Contractor shall maintain, and leave a level pit floor after crushing is completed. Pit is to
be left free of trash and debris. No onsite disposal of waste is permitted.
17. Contractor is responsible for dust control during crushing operations and for obtaining
water for dust control, as required.
18. Montrose County may ask to haul gravel while crushing is in progress. The Road & Bridge
Superintendent or designee will seek permission and coordinate with the crushing
contractor should this occur. Contractor shall have control of the pit while crushing is being
performed and must adhere to all applicable regulations; therefore, permission to haul is
not guaranteed.
19. All costs except the mobilization costs are to be included in the bid price per ton. The
"Mobilization to a Pit" bid price will be charged once for each pit. If a move within a pit
becomes necessary and is approved by Montrose County, the "mobilization within a Pit"
bid price will be used for payment.
20. Crushing times shall be from 7 am to 6 pm Monday through Friday. Work on weekends
will be allowed on case by case basis, depending on the gravel pit.
21. Crushing in all pits shall be completed no later than November 8, 2026, unless written
permission by the County is granted to extend the completion date.
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22. The County may assess liquidated damages against the Contractor in the amount stated in
the contract until the contract is finished if the deadline for crushing services is not met.
The County may assess liquidated damages against the Contractor in the amount stated in
the contract until the deadline is met if any of the pit specific deadlines are not met
23. Contractor is responsible for operating in performance with all applicable regulations,
including but not limited to Mine Safety & Health Administration (MSHA), Colorado
Department of Public Health & Environment (CDPH&E), Division of Minerals & Geology
(DMG), OSHA, Montrose County Special Use criteria, Montrose County Gravel Pit
Mitigation Standards, and any other applicable regulation.
24. Contractor is to provide a copy of applicable Construction Permit(s) (APEN) issued by
CDPH&E, and proof of current MSHA Part 46 training upon notice of bid award.
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Bid Form Page 1 of 3
BIDDER INFORMATION
2026 Gravel Crushing Services
Bidder: ____________________________________________________
Address: ____________________________________________________
____________________________________________________
____________________________________________________
Phone Number: ___________________________________
Fax Number : _____________________________________
E-Mail Address: _______________________________________________
Representative's Signature ______________________________________
Printed Name of Signer _________________________________________
Title ______________________________________
Date ______________________________________
Exceptions or Comments
____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
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Bid Form Page 2 of 3
BID SCHEDULE FORM
2026 Gravel Crushing Services
Mat'l Estimated Unit Bid
Code Description Quantity* Unit Price Bid Item Amount
507 3/4-inch Surface Course Dirty Rd Base 30,000 tons
508 CDOT Class 6 Aggregate Base Course 50,000 tons
509 7/8-inch Surface Course Dirty Road Base 90,000 tons
513 CDOT Class 1 Aggregate Base Course 10,000 tons
Mobilization to a Pit 3 each
Mobilization within a Pit 2 each
Total Bid Price
*Estimated Quantities are for bidding purposes and are subject to change
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Bid Form Page 3 of 3
BID AND ADDENDA ACKNOWLEDGMENT
2026 Gravel Crushing Services
The undersigned, having carefully read and considered the Invitation to Bid for the Montrose
County 2026 Gravel Crushing Services, does hereby offer to supply such services to the County
of Montrose, Colorado in the manner described and subject to the Contract Documents.
The undersigned acknowledges receipt of addenda (if any). The undersigned shall initial after
the appropriate item(s):
Acknowledgment of Addendum #1: ____
Acknowledgment of Addendum #2: ____
Acknowledgment of Addendum #3: ____
The undersigned further states that this bid is made and submitted in good faith and is not founded
on, or in consequence of, any collusion, anticompetitive agreement or other type of anticompetitive
activities between themselves and any other interested party, in restraint of free competition.
The undersigned agrees that any information contained within the proposal that is proprietary in
nature or protected by copyright, trademark, or other intellectual property law has been clearly
identified for non-disclosure purposes. The undersigned understands that Montrose County agrees
to maintain confidentiality of such materials to the extent permitted by law, but also understands
that the County is subject to the provisions of the Colorado Open Records Act (CORA), C.R.S.
24-72-201, et seq., and cannot therefor guarantee that any materials provided will not be produced
in response to a CORA request.
Bidder Business Name__________________________________________________
Authorized Representative Signature_______________________________________
Authorized Representative Name & Title (print)
________________________________________________________________
Date ____________________
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Attachment A
Gravel Crushing Sieve Specifications
Material Code 507 - Montrose County 3/4" Surface Course Dirty Road Base:
Sieve Percent Passing
3/4" 100
1/2" 65-95
#4 35-65
#8 25-55
#200 8-16 (refer to Note 3)
CDOT Class 6 Aggregate Base Course (Material Code 508):
Sieve Percent Passing
1" 100
3/4" 95-100
#4 30-65
#8 25-55
#200 3-12
Montrose County 7/8" Surface Course Dirty Road Base (Material Code 509):
Sieve Percent Passing
7/8" 100
3/4" 80-95
1/2" 65-85
#4 30-60
#8 20-45
#200 8-16 (refer to Note 3)
CDOT Class 1 Aggregate Base Course (Material Code 513):
Sieve Percent Passing
2.5" 100
2" 95-100
#4 30-65
#200 3-10 (refer to note #2)
Notes
1. All materials shall have shall have at least 1 mechanically induced fractured face on 50% or more of
the aggregate retained above the #4 sieve.
2. Class 1 and Class 6 materials are standard CDOT specified materials, except that the maximum
amount passing the #200 sieve has been changed from 15% to 10% for CDOT Class 1 material.
3. Montrose County Surface Course Dirty Road Base materials (material codes 509 and 510) are
typically applied to gravel surfaced roads, which required higher fines content for binder. Montrose
County will import additional fines to the pit where naturally occurring fines are not adequate.
Contractor is responsible to add and mix these fines prior to, or as part of, the primary crusher feed as
necessary to achieve the specified fines content.
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