US36 Wildlife Crossings 30% Engineering Design Project

Boulder County Parks & Open Space (BCPOS) seeks professional engineering services to further develop the Boulder County US-36 Wildlife Crossings 30% Engineering Design Project from a ~10% plan to a 30% plan set ready for the Colorado Department of Transportation (CDOT) to accept for final design and construction.

The 30% design will include one (1) overpass and three (3) underpasses and associated exclusionary fencing, jump-outs, existing structure improvements, impacted road and driveway improvements, construction access points, and staging areas. The project site is between Boulder and Lyons on the section of US-36 between Left Hand Creek (Milepost (MP) 27.95) and St. Vrain Creek (MP 21.8).

The Contractor is expected to follow processes and guidelines provided by the Colorado Department of Transportation (CDOT) when conducting this project. The CDOT Roadway Design Guide (latest online version of each Chapter) is expected to guide the design of this Project, notably Chapters 11-17.

This Project is intended to meet the following goals:

• Assess the constructability of the proposed underpass and overpass locations and evaluate alternate locations if needed.
• Road ecology site surveys.
• Topographic surveys for structures and fencing including CDOT right of way boundaries and surface and subsurface utility identification (Quality Level B- QL-B).
• Geotechnical investigations and reports in all areas proposed for earthwork.
• Structural engineering design to meet existing conditions.
• Prepare a 30% CDOT plan set, 30% CDOT general and technical specification set, and 30% CDOT construction cost estimate and bid schedule. This will include proposed staging areas and traffic control plans. Inclusion of a Structure Selection Report is **required**.
• Provide permit-ready exhibits and marketing materials for use by stakeholders to start the 1041 permit process, raise awareness, and apply for funding for the next phase of the project.

The Contractor must provide a 2026-2027 rate sheet for all staff that may be engaged in all tasks. A bid is **required** for all five tasks and three packages (base package, Add Alternate A and Add Alternate B).

Base Package

• Task 1 - Project Management and Partner Coordination.
• Task 2 - Site Assessments and Investigations.

Add Alternate A

• Task 3 - 30% CDOT Plans and Specifications.
• Task 4 - 30% Construction Cost Estimate and Bid Schedule.

Add Alternate B

- Task 5 - Exhibits and Outreach Material Preparation.

Two hard copies of all work products will be delivered together with all electronic files.

A **Mandatory** Pre-Proposal meeting is scheduled. Proposals from firms not represented at the mandatory pre-proposal meeting will not be accepted.

The cost must be exclusive of any federal or state taxes because Boulder County is tax exempt. Proposers complete the *Proposal Tab*.

The selected proposer will be required to enter into a Boulder County Procurement Contract and meet all insurance requirements as required prior to any work beginning. Work will not commence until the County has issued a Notice to Proceed to the selected Contractor. The insurance requirements are specified in *Exhibit A*.

The selected Contractor will be paid on a time and materials basis. Payment will be retained until the data submitted is 100% compliant with the County requirements as detailed.

A copy of your business' State issued certificate is required, if awarded. The date of completion will be on or by Friday, December 8, 2027.

Any party that has developed, designed or drafted specifications, requirements, statements of work and/or has participated in planning activities for this Project may be excluded from consideration for the award of this Project.