02- Invitation to Bid.pdf

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Attached to
Lost Canyon Ranch Open Space Roadway Maintenance and Parking Lots
Solicitation number
2025-01
Issued by
Douglas County, Colorado

About this file

The document is an Invitation to Bid issued by the Town of Castle Rock, Colorado, soliciting sealed bids for the Lost Canyon Ranch Open Space Road Maintenance and Parking Lots Construction project. The project encompasses road regrading, retaining wall construction, roadside ditch stabilization, trailhead parking area grading, culvert installation, check dam construction, and concrete flatwork along Lost Canyon Ranch Road. A mandatory pre-bid conference is scheduled for August 21, 2025, at 11:00 a.m., and sealed bids are due by September 4, 2025, at 1:00 p.m. The anticipated Notice of Award is October 8, 2025, with construction commencement within two weeks thereafter. The project requires substantial completion by May 21, 2026, and final construction completion by June 4, 2026.

The bid includes two alternates - the Cattleman's Trailhead Parking Lot and the Willow Creek Accessible Trail - which may be added to the scope depending on pricing. Bidders must provide an experience statement demonstrating previous work on similar projects, with the prime contractor required to self-perform a minimum of 51% of the construction value. A bid guarantee of 5% of the total bid amount is required, and the successful bidder must provide a Certificate of Insurance, Performance Bond, and Labor and Material Payment Bond. The town reserves the right to cancel the invitation to bid, reject any bid, and adjust the work quantity based on budgetary requirements.

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Lost Canyon Ranch Open Space Road Maintenance and Parking Lots Construction

INVITATION TO BID

The Town of Castle Rock, Colorado will receive sealed Bids for the Lost Canyon Ranch Open Space Road Maintenance and Parking Lots Construction until 1:00 p.m. (MST), September 4, 2025 at:

Miller Activity Complex

ATTN: Rich Havel 1375 W. Plum Creek Parkway

Castle Rock, CO 80109

At that time and place, Bids will be opened and publicly read aloud. Bids must be received prior to the above stated time and date. Any Bids received after this time and date will be returned, unopened.

Clearly mark your Bid Envelope showing the Project Name, the Bid Opening date and YOUR COMPANY NAME. In the Case of No Bid, please return your Bidding Documents indicating No Bid on the form and on the outside of the return envelope.

If any information/material is to accompany the Bid, please attach it to the Bid Forms.

A MANDATORY PRE-BID CONFERENCE will be held on Thursday, August 21st, 2025 at 11:00 a.m. SHARP (MST) at the project site 6581 Lost Canyon Ranch Road, Castle Rock, CO 80104. Sign in will end at 11:15

am. See attached map for meeting location. All interested General Contractors are required to attend the mandatory pre-bid conference. If a representative from your company is not present and does not sign the pre-bid conference sign in sheet that company will not be allowed to bid on the project.

PRINCIPAL ITEMS of WORK INCLUDE:

The Town of Castle Rock is soliciting bids from qualified contractors for the construction, grading, and stabilization improvements along Lost Canyon Ranch Road and the adjacent trailhead area(s). The project includes, but is not limited to, the following major elements of work:

1. Roadway Regrading o Regrade and reshape Lost Canyon Ranch Road to improve drainage, surface stability, and user safety.

o Placement and compaction of suitable base materials where required.

2. Retaining Wall Construction o Install structural and/or mechanically stabilized earth (MSE) retaining walls at designated locations to support roadway edges, embankments, and slopes.

o Include proper drainage and backfill to ensure long-term stability.

3. Roadside Ditch Stabilization o Excavate, shape, and stabilize roadside ditches to convey stormwater without erosion.

o Utilize erosion control blankets, hydromulch, riprap, or other approved stabilization methods as specified.

4. Trailhead Parking Area Grading o Rough and fine grade the trailhead parking area to specified slopes and elevations.

o Install base course material for future surfacing and provide proper drainage features.

5. Culvert Installation o Supply and install new culverts at designated road and trailhead crossings to improve stormwater conveyance.

o Include flared end sections, inlet/outlet protection, and bedding per plans.

6. Check Dam Installation in Swales o Construct rock or other approved check dams within designated swales to reduce water velocity and limit erosion.

7. Concrete Flatwork o Place and finish concrete for sidewalks, pads, or other hardscape elements as shown on project plans.

o Include subgrade preparation, formwork, reinforcement, and curing.

8. Alternate 1: Cattleman’s Trailhead Parking Lot o Due to budgetary constraints, we are requesting the upper Cattleman’s trailhead project be an alternate that we may choose to add to the scope of work depending on how pricing comes in.

9. Alternate 2: Willow Creek Accessible Trail o Due to budgetary constraints, we are requesting our Willow Creek accessible trail be broken out as an alternate that we may choose to add to the scope of work depending on how pricing comes in.

General Requirements:

All work shall be performed in accordance with Town of Castle Rock standards and the project plans.

The contractor will be responsible for site preparation, erosion control, traffic control, material testing coordination, and restoration of disturbed areas.

The construction services for this work shall include but not be limited to:

• Manage all construction activities while constructing the designed improvements.

• Coordinate all deliveries to minimize disturbance to surrounding residents.

• Create a safe and secure work environment for both the public as well as the individuals working on-site.

• Organize and manage the weekly Owner, Architect, and Contractor (OAC) meetings including meeting minutes.

• Manage and maintain up to date drawings and record of changes.

• Coordinate all work as to create a flow and most efficient way for productivity.

• Work closely with Town departments/utility companies and agencies.

• Extreme caution shall be taken not to damage items that are called to be protected

(trees/landscaping) and left in place.

• Manage both the required self-perform (a minimum of 51% of the construction value) as well as the subcontractor work.

BID SCHEDULE:

The Town anticipates a Notice of Award on or around Wednesday October 8, 2025, with commencement of construction anticipated within two weeks after.

The construction duration will require SUBSTANTIAL COMPLETION no later than THURSDAY, MAY 21, 2026 AND FINAL CONSTRUCTION COMPLETION BY THURSDAY, JUNE 4, 2026.

Direct questions on bidding procedures and/or technical questions on the project scope of work to Rich Havel, Trails Planner. Email: rhavel@crgov.com

All requests for clarification and/or questions must be received by email (no phone requests) by 9:00 a.m.

(MST) on Wednesday, August 27, 2025. All requests for additional information must identify the person/vendor requesting the information. All clarifications will be for the benefit of all potential bidders.

Contacting others involved in the development of the Project shall be reason for the Bidders Bid to be rejected. Responses to questions and clarification shall be by written addendum only, verbal responses are non-binding.

The Bidding Documents will be available, on Monday August 18, 2025 www.rockymountainbidsystem.com

CONSTRUCTION SCHEDULE: All Bidders shall provide a base line schedule with a ghantt chart. The baseline schedule shall include but not be limited to the following milestones:

• Mobilization

• Commencement of Culvert Installation

• Completion of Culvert Installation

• Commencement of Roadway Grading

• Completion of Roadway Grading

• Commencement of Retaining Walls

• Completion of Retaining Walls

• Commencement of Roadbase Installation

• Completion of Roadbase Installation

• Commencement of Concrete Installation

• Completion of Concrete Installation

• Commencement of Alternate 1: Cattleman’s Trailhead Parking Lot

• Completion of Alternate 1: Cattleman’s Trailhead Parking Lot

• Commencement of Alternate 2: Willow Creek Trail

• Completion of Alternate 2: Willow Creek Trail

• Commencement of Seeding and Blanketing

• Completion of Seeding and Blanketing

• Closeout (Warranty, O&M, As-builts)

• Punchlist initial

• Punchlist completion

• Project Substantial Completion (Thursday, May 21, 2026)

• Project Final Construction Completion (Thursday, June 4, 2026) mailto:rhavel@crgov.com

EXPERIENCE REQUIREMENTS:

Provide an experience statement that includes the following information:

• Project completed of similar size and scope where the bidder has acted as the prime contractor within the past three years.

• Staff experience working on similar projects of size and scope of which the staff that will be assigned to this project if awarded.

• Experience in building gravel roadways with swales, gravel parking lot, concrete flatwork, retaining walls, and utilities.

• Prime Contractor is required to have experience and self-perform a minimum of 51% of the construction value. Please list which work the General Contractor will be performing and the experience/examples they have performing this work.

• Current projected workload for fall and winter of 2025 and spring 2026.

LIST OF PROPOSED SUBCONTRACTORS:

A list of the proposed subcontractors that the General Contractor plans on utilizing for the specific trades shall be included with the proposal.

ATTACHMENTS:

• Bid documents, including Construction Documents

• Bid Unit Price Schedule (will also provide excel file format for your use)

• Town of Castle Rock Sample Contract and General Conditions

The successful Bidder shall provide the Town with a Certificate of Insurance naming the Town of Castle Rock as an additional insured for all policies required in the General and Special Conditions, a Statement of Liability and Indemnity, and with proof of Workers' Compensation coverage.

If awarded the project, a Performance Bond and a Labor and Material Payment Bond are required within ten days of the date the written Notice of Award, each for the total amount of the Contract Price.

No Bidder may withdraw a Bid for a period of Thirty days after the date fixed for opening the Bids.

A Bid Guarantee in an amount equal to 5% of the total Bid amount is required at the time of the Bid Opening. The Guarantee must be a certified check payable to the Town of Castle Rock or a satisfactory Bid Bond executed by the Bidder.

The Town of Castle Rock reserves the right to cancel this Invitation to Bid; reject any Bid, in whole or in part; to adjust the quantity of Work to be done as mandated by budgetary requirements; and to waive informalities or irregularities in the Bids received; when it is in the Town's best interest to do so.

IT IS UNLAWFUL AND UNETHICAL FOR ANY PERSON TO OFFER, GIVE OR AGREE TO GIVE ANY TOWN

EMPLOYEE, TOWN OFFICIAL OR FORMER TOWN EMPLOYEE, OR FOR ANY TOWN EMPLOYEE, TOWN

OFFICIAL OR FORMER TOWN EMPLOYEE TO SOLICIT, DEMAND, ACCEPT OR AGREE TO ACCEPT FROM

ANOTHER PERSON, A GRATUITY OR AN OFFER OF EMPLOYMENT IN CON¬NECTION WITH ANY DECISION, APPROVAL, DISAPPROVAL, RECOMMENDATION OR PREPARATION OF ANY PART OF A PROGRAM

REQUIREMENT OR A PURCHASE REQUEST, INFLUENCING THE CONTENT OF ANY SPECIFICATION OR PROCUREMENT STANDARD, RENDER¬ING OF ADVICE, INVESTIGATION, AUDITING OR IN ANY OTHER ADVISORY CAPACITY IN ANY PROCEEDING OR APPLICATION, REQUEST FOR RULING, DETERMINATION, CLAIM OR CONTROVERSY, OR OTHER PARTICULAR MATTER, PERTAINING TO ANY PROGRAM

REQUIREMENT OR A CONTRACT OR SUBCONTRACT, OR TO ANY SOLICITATION OR PROPOSAL THEREFOR.

IT IS UNLAWFUL AND UNETHICAL FOR ANY PAYMENT, GRATUITY OR OFFER OF EMPLOYMENT TO BE MADE BY OR ON BEHALF OF A SUBCONTRACTOR UNDER A CONTRACT TO THE PRIME CONTRACTOR OR HIGHER TIER SUBCONTRACTOR OF ANY PERSON ASSOCI¬ATED THEREWITH, AS AN INDUCEMENT FOR

THE AWARD OF A SUBCON¬TRACT OR ORDER.

THE TOWN OF CASTLE ROCK RESERVES THE RIGHT TO REJECT ANY OR ALL PROPOSALS, OR ACCEPT ANY PRESENTED, WHICH ARE DEEMED TO BE IN THE BEST INTEREST OF THE TOWN OF CASTLE ROCK. THE TOWN IS NOT BOUND TO ACCPT THE LOW PROPOSAL. THE TOWN RESERVES THE RIGHT TO WAIVE

FORMALITIES OF THE BIDDING PROCEDURE OR INFORMATILITIES CONTAINED IN A PROPOSAL.

TOWN OF CASTLE ROCK

END OF SECTION

Miller Activity Complex

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