On-Call General Civil Construction and Pipeline Maintenance Services

Docusign Envelope ID: 08CE93C8-457C-883E-80BE-9CFB148E3068
CITY OF THORNTON
REQUEST FOR PROPOSALS
FOR
ON-CALL GENERAL CIVIL CONSTRUCTION AND PIPELINE
MAINTENANCE SERVICES
PROJECT NO. 304-26
September, 2026

Docusign Envelope ID: 08CE93C8-457C-883E-80BE-9CFB148E3068
II. INDEX OF CONTENTS
I. TITLE PAGE
II. INDEX OF CONTENTS
III. NOTICE REQUEST FOR PROPOSALS
IV. PROPOSAL INSTRUCTIONS AND INFORMATION
V. PROPOSAL PREPARATION
VI. EXHIBIT 1 - ACCEPTANCE OF CONDITIONS STATEMENT
VII. EXHIBIT 2 - GENERAL SERVICES AGREEMENT
EXHIBIT A - SERVICE PROVIDER'S GENERAL SCOPE OF WORK
AND SPECIFICATIONS
EXHIBIT B - SERVICE PROVIDER'S KEY PERSONNEL AND
SUBCONTRACTORS LISTING
EXHIBIT C - SCHEDULE OF CHARGES
EXHIBIT D - SPECIAL CONDITIONS, IF ANY
EXHIBIT E - GENERAL CONDITIONS
EXHIBIT F - LABOR AND MATERIAL PAYMENT BOND FORM
EXHIBIT G - PERFORMANCE BOND
VIII. EXHIBIT 3 - REFERENCE AUTHORIZATION AND RELEASE FORM
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III. NOTICE
REQUEST FOR PROPOSALS
The City of Thornton, Colorado, ("Thornton") respectfully requests separate sealed Proposals
for On-Call General Civil Construction And Pipeline Maintenance Services, Project No.
304-26 (hereinafter referred to as "Project"). Proposals will be received until 5:00 p.m., local
time, October 14, 2026, in the Contract Administration Office, 9500 Civic Center Drive, 2nd
Floor City Hall, Thornton, CO 80229-4326.
Approved Methods for Submission of Proposals:
Electronic proposals shall be submitted/uploaded to BidnetDirect.com website in response to
this solicitation.
Or Physical proposals may be submitted by mail or courier service;
Late Proposals will not be accepted under any circumstances.
Project Description: The City of Thornton is seeking Proposals from Service Providers to
provide construction related Services on an on-call, as-needed basis under a five (5) year
General Service Agreement. Thornton intends to award to multiple Service Providers. Nothing
herein guarantees any minimum amount of work to any Service Provider. Contractors are
encouraged to provide pricing for any and all work pertinent to their firms; Contractors are not
required to provide pricing or references for work they do not and cannot perform.
Thornton requires one or more firms to perform construction Services such as: General civil
construction, water line installation or repair, sewer line installation or repair, irrigation
ditch work, stream or culvert cleaning and/or rehabilitation, grading, earthwork, riprap
installation, concrete structure repair, fencing and guard-rail, sound barriers, retaining
walls, underground location services, pipe boring and micro-tunneling, general water
treatment plant process equipment services, reservoir dewatering, reservoir repairs,
reservoir leak testing, general painting services, bridge painting, bridge painting/repairs,
installation and maintenance of stormwater control measures and provide as-needed
hydraulic modeling Services of Thornton's existing and proposed water and
wastewater systems, and other construction related Services that would benefit
Thornton.
Underground Drainage Pipe Cleaning. Thornton has several drainage pipes that will need
periodic cleaning. In addition, new drainage systems may be added to Thornton's
infrastructure system. There are three (3) existing major underdrain systems at this time.
The underdrain system located on the east and southeast side of Tani Gravel Lake is
approximately 1,820 feet of 18-inch slotted PVC and 300 feet of 15-inch slotted and solid
PVC. The system located at East Sprat Platte pit is approximately 1,875 feet of 15-inch
slotted and solid PVC piping. The system located near E470 (Hammer Reservoir Complex)
and Riverdale Road is approximately 1,800 feet of 8-inch slotted PVC.
Work under this Agreement will be issued and performed under Task Assignments. These
Services may be required for scheduled work or on an emergency basis by various Thornton
Departments. Compensation may be computed using the Cost of Work plus Fee method, Lump
Sum Bid, Design Build, Unit Price Bid, or a combination of these methods of compensation.
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The Agreement shall terminate on December 31, 2031, unless sooner terminated by Thornton's
issuance of a Notice of Termination. Rate adjustments may be re-negotiated annually upon
request. Rate adjustments are limited to no greater than the increase in the Engineering News
Record's current Construction Cost Index ("CCI").
To be minimally qualified for consideration for award, proposing firms must be registered with
the Colorado Department of State in the area of expertise/trade they are intending on
contracting for, licensed at the Master-craftsman level, bondable, insured and must maintain
an excellent safety rating. Proposing firms must demonstrate experience in their respective
areas by submitting at least fifteen (15) projects completed in the Colorado Front Range corridor
within the past three (3) years.
COOPERATIVE PURCHASING:
Thornton encourages the proper use of cooperative purchasing and reserves the right to
make results of this solicitation available to other governmental agencies seeking like
equipment, goods, or services. Other agencies using this solicitation, in agreement with the
Service Provider, must do so according to regulations established by their individual
organizations and accept sole responsibility for its use. The terms and conditions of any
resulting transaction shall be exclusively between the Service Provider and the other
agencies. Service Provider and the other agencies using this solicitation in a cooperative or
"piggy-back" fashion, agree to defend and hold harmless Thornton from any dispute or action
arising from its use.
Thornton utilizes the BidNet Direct System at www.BidNetDirect.com to distribute official copies
of the Request for Proposals ("RFP") for use in preparing Proposals. Proposing firms will be
required to register with the website to download the RFP documents and addenda. There is
no charge by BidNet Direct for this service. If you experience problems with the BidNet Direct
website, please call 1-800-835-4603 for assistance. Proposing firms are required to
acknowledge all addenda with their Proposal and are encouraged to either register with the
website or to request to view the addenda posted on the Contract Administration bulletin board
prior to submission of a Proposal. Proposing firms that do not acknowledge all addenda may
be considered non-responsive. Upon request, the RFP documents, including addenda, are
also available for viewing on the City of Thornton Website,
https://solicitations.thorntonco.gov/solicitations or at the Contract Administration office located
on the 2nd floor of City Hall at 9500 Civic Center Drive, Thornton, CO. Proposing firms that do
not have download and/or printing capability in-house may contact a commercial reprographics
company for assistance with downloading and printing the RFP.
Late Proposals will not be accepted under any circumstances. Any Proposal(s) received after
the scheduled time for closing will be returned to the proposing firm unopened. Sole
responsibility rests with the proposing firm to see that their Proposal is received on time.
Thornton reserves the right to reject any and all Proposals, in part or in whole, and to award
the Project to the most responsive and responsible firm as deemed in the best interest of
Thornton; further, the right is reserved to waive any formalities or informalities contained in said
Proposal(s).
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An optional Pre-Proposal Conference to discuss the Project will be held at 2:00 PM,
September 30, 2026, via Teams Teleconference: If possible, please hold all questions
concerning the RFP until that time.
Physical proposals shall be submitted in a sealed envelope plainly marked on the outside with
proposing firm's name and address and "Request for Proposals, On-Call General Civil
Construction and Pipeline Maintenance Services, Project No. 304-26". Proposals
delivered by mail or courier service shall be in a sealed envelope inserted into a separate
mailing envelope. On the outside of the mailing envelope note "Proposal Enclosed, On-Call
General Civil Construction Services, Project No. 304-26".
Proposals submitted electronically shall be uploaded to the Vendor's portal through the
BidNetDirect.com website and shall follow the process/guidelines identified on the website and
this solicitation.
Any questions concerning this Project shall be directed in writing to Andrew Villarreal, Contract
Administrator, E-mail - Andrew.Villarreal@ThorntonCO.gov, 8:00 a.m. to 5:00 p.m., local time,
Monday through Friday, excluding holidays. The deadline for submission of questions is ten
(10) Calendar Days prior to the date set for submission of Proposals.
Date First Published: September 14, 2026
Published at: BidNet Direct, COT Website & the Contracts & Purchasing Bulletin Board.
9/15/2026
Signed: _________________________________ Date: _____________
Dennis Laurita
Contracts Supervisor
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IV. PROPOSAL INSTRUCTIONS AND INFORMATION
Thornton is soliciting written Proposals from qualified firms for On-Call General Civil
Construction and Pipeline Maintenance Services, Project No. 304-26. To be eligible for
consideration, the proposing firm must be capable of supplying the services as noted herein,
and must also meet all other criteria outlined in this RFP.
A. INQUIRIES AND CORRECTIONS
All inquiries relating to this request shall be addressed in writing to:
City of Thornton
Attn: Andrew Villarreal, Contract Administrator
9500 Civic Center Drive
Thornton, CO 80229-4326
Email: Andrew.Villarreal@ThorntonCO.gov
If a proposing firm, subsequent to the Pre-Proposal Conference finds discrepancies in
or omissions from the RFP, or should require additional clarification of any part thereof,
a written request for interpretation shall be submitted to the Contract Administrator. Any
interpretation of or change made to the RFP will be made by written addendum to each
proposing firm, and will become part of the RFP and of any Contract awarded. Thornton
will not be responsible for the accuracy of any ORAL EXPLANATIONS,
INTERPRETATIONS, OR REPRESENTATIONS. All inquiries shall be made in writing
and all responses will be provided in writing, with responses being made available to all
proposing firms. To be given consideration, inquiries must be received at least ten (10)
Calendar Days prior to the date established for the submission of the Proposal. It shall
be the responsibility of each proposing firm to verify that every addendum has been
received prior to submitting Proposals.
B. SUBMITTAL DATE AND LOCATION
All Proposals must be received at Thornton City Hall, City of Thornton, 9500 Civic
Center Drive, 2nd Floor City Hall, Thornton, Colorado 80229-4326 or submitted via the
BidNetDirect.com vendor portal prior to 5:00 p.m. local time on October 14,2026.
Physical proposals must be submitted in a sealed envelope plainly marked "Request
for Proposals, On-Call General Civil Construction and Pipeline Maintenance
Services, Project No. 304-26", and addressed to the Contracts Manager. Proposing
firm's name and address shall also appear on the outside of the sealed envelope
containing the Proposal. If the Proposal is sent by U.S. mail or courier service, the
Proposal shall be contained in a sealed inner envelope or box, which is then inserted
into the mailing envelope or box. Indicate "Proposal Enclosed, On-Call General Civil
Construction and Pipeline Maintenance Services, Project No. 304-26," on the
outside of the mailing envelope or box.
C. LATE AND ELECTRONIC PROPOSALS
Late Proposals will not be accepted under any circumstance, and any Proposal so
received shall be returned to the proposing firm unopened. In addition, proposals
received via electronic devices other than the BidnetDirect.com website (i.e. e-mail) are
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not acceptable and will be rejected upon receipt. Proposing firms will be expected to
allow adequate time for delivery of their Proposals either by airfreight, postal service, or
other means.
D. CONFIDENTIAL AND PROPRIETARY INFORMATION
Prior to Award, any information contained within the Proposal may be held confidential
and proprietary by Thornton as solely determined by Thornton. After Award, the
information within the Proposal becomes public information with the exception of
information that has been clearly marked as confidential and proprietary by the
proposing firm. Any information marked confidential shall comply with Colorado's Open
Records Act and other applicable statutes. Thornton shall be held harmless from any
claims arising from the release of confidential and proprietary information not clearly
designated as such by the proposing firm. In general, it is not acceptable to Thornton
to mark information other than financial statements, project financing data, litigation
history, tax audit history, or client lists as confidential and proprietary. Further, it is not
acceptable to mark price proposal information as confidential and proprietary. Failure
to adhere to these restrictions may result in the Proposal being deemed non-responsive.
E. DEFINITION, CONTEXT, AND GENDER
Unless otherwise specified in this document, all words shall have a common meaning
unless the context in which they are used clearly requires a different meaning. Words
in the singular number include the plural, and in the plural include the singular.
Additionally, words of the masculine gender include the feminine and the neuter, and
when the sense so indicates, words of the neuter gender may refer to any gender.
F. CONDITIONS OF PROPOSAL SUBMITTAL
1. All proposing firms shall comply with all conditions, requirements, and
specifications contained herein, with any departure constituting sufficient cause
for rejection of the Proposal.
2. The Proposal must be signed by a duly authorized official of the proposing firm
submitting the Proposal.
3. No Proposal will be accepted from any person, firm, or corporation that is in
arrears for any obligation to Thornton, or that otherwise may be deemed
irresponsible or unresponsive by Thornton staff or Thornton City Council.
4. Only one (1) Proposal will be accepted from any person, firm, or corporation. If
multiple options are requested or offered, each option must be submitted under
a single Proposal and in a single envelope or box.
5. All terms and prices quoted must be firm for a period of sixty (60) Calendar Days
from the Proposal submittal date or until Award, whichever is sooner.
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6. Thornton reserves the right to reject any and all Proposals, or any part thereof.
The right is reserved to waive any formalities, or informalities contained in any
Proposal, and to award the Project to the most responsive and responsible
proposing firm as deemed in the best interest of Thornton.
7. All Proposals shall be prepared in a comprehensive manner as to content, but
no necessity exists for expensive binders or promotional material.
8. All costs, including travel and expenses incurred in the preparation of this
Proposal, shall be borne solely by the proposing firm.
9. Section 7.4 of the Thornton City Charter prohibits Thornton from entering into
any Contracts involving an amount in excess of one hundred dollars ($100) in
which an elective or appointive officer or any member of the officer's family has
any pecuniary interest, direct or indirect. Certain other restrictions may also
apply to Contracts in which an employee, member of a board or commission,
City Council Member or member of same's family has an existing or pending
financial or personal interest. For the purposes of this Charter Section, a
domestic partner shall be considered a family member. Therefore, the
proposing firm shall submit the following declaration contained in Exhibit "1",
Acceptance of Conditions Statement, with the Proposal:
No City Council Member, member of a board or commission, Municipal Judge,
City Manager, City Attorney, or employee of the City of Thornton, or any such
person's family member, domestic partner, or person assuming a relationship
being the substantial equivalent of the above, has an existing or pending direct
or indirect financial, pecuniary, or personal interest in the proposing firm or this
RFP, except as follows:
10. Thornton reserves the right to negotiate final terms with the selected proposing
firm that may vary from those contained in this document.
11. Thornton reserves the right to request a client list from the proposing firm, for the
purpose of determining potential conflicts of interest. Said list shall be
considered proprietary.
12. Thornton will not return Proposals, or other information supplied to Thornton, to
the proposing firms.
G. EVALUATION OF PROPOSALS
All Proposals will be evaluated by a Project Committee assigned by the City Manager,
or their designee. Proposals shall be evaluated on the basis of the Evaluation Criteria
noted here-in. Qualifications, experience, and the applicability of solutions offered to
meet Thornton's needs will be the major factors determining the selection, with pricing
being secondary. In addition, other pertinent information which becomes available
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during the evaluation, interview, or negotiations may be considered in the evaluation.
The committee may make a selection on the basis of the Proposals received, or may
choose to "short list" prospective firms for further consideration, which may include
interviews and or negotiations. The firm selected for the Award will be chosen on the
basis of the apparent greatest benefit to Thornton, and not necessarily on the basis of
lowest price. The City Manager or their designee, shall make the final determination of
the firm selected.
H. EVALUATION CRITERIA
To be minimally qualified for consideration for award, proposing firm must have
successfully completed fifteen (15) projects in the Colorado front range corridor that
have a similar degree of complexity and cost within the past three (3) years.
Proposals from firms meeting the minimum qualifications shall be evaluated on the basis
of the following criteria:
1. Responsiveness to the needs of Thornton and the degree to which the Proposal
meets or exceeds the terms of the RFP as detailed in the proposed means and
methods of accomplishing the services, and the scope of services offered.
Response times offered in the Proposal shall be given substantial consideration
in the evaluation.
2. Responsibility of the proposing firm, including the firm's financial capacity, and
its claims and litigation history.
3. Experience of the proposing firm in dealing with municipal or other governmental
agencies in projects of similar size, scope, and nature.
4. The proposing firm's engagement team, including the experience and resumes
of key personnel to be assigned.
5. Results of reference checks.
6. The proposing firms' billable hourly rates and markup percentages based on the
services to be provided.
7. The variety and complexity of the projects submitted to demonstrate experience.
8. Firms in house capabilities including Equipment of all types applicable to the
Services provided, subcontractor capabilities, extent of Services provided and
response times.
I. GENERAL REQUIREMENTS OF THE SUCCESSFUL PROPOSING FIRM
1. The successful proposing firm shall enter into an Agreement with Thornton in the
form attached hereto as Exhibit 2 and incorporated by reference herein.
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2. The successful proposing firm will be required to maintain insurance coverages
for the duration of the Agreement period as outlined in Exhibit 2.
3. The successful proposing firm shall be prohibited from assigning or
subcontracting the whole, or any part of the Agreement, without the prior written
consent of Thornton.
4. The successful proposing firm shall not hire, discharge, promote, demote, or
otherwise discriminate in matters of compensation, terms, conditions, or
privileges of employment against any person otherwise qualified solely because
of race, color, creed, religion, national origin, ancestry, gender, physical or
mental disability, or age.
5. The successful proposing firm and its employees will operate as an independent
contractor and will not be considered employees of Thornton.
J. DIGITAL ACCESIBILITY
All reports, diagrams, drawings, etc., provided by the Vendor to Thornton shall be in an
electronic format that is usable to Thornton (e.g., Adobe PDF, Microsoft Office, etc.)
either through email or download, which shall become the property of Thornton. All
reports generated and submitted by the awarded Vendor to Thornton shall adhere to
the State of Colorado's Anti-Discrimination Act ("CADA"), including all digital
accessibility requirements. As of 2021, House Bill 21-1110 and related regulations (8
CCR 1501-11) promulgated by the State of Colorado's Office of Information Technology
("OIT") require all local government technology and electronic documents (i.e., Reports
generated in Adobe PDF, Word, etc.) to meet or exceed the applicable Website Content
Accessibility Guidelines ("WCAG") standards, regardless of if the product/information is
external facing or used solely by Thornton employees on an internal basis.
Proposing Vendors are to note that Thornton does not govern or have oversight over
these requirements. For more information on the CADA and WCAG guidelines, please
follow this hyperlink to the State's OIT website: https://oit.colorado.gov/hb21-1110-faq
K. GENERAL BACKGROUND INFORMATION
Thornton has utilized on-call service agreements with Service Providers for various
types of work for many years. These agreements have proven very useful and
advantageous for both Thornton and the Service Providers. Thornton periodically
rebids these services to insure a wide range of Service Providers are available under
these Agreements and to insure competition.
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