REQUEST FOR PROPOSALS
PROFESSIONAL SERVICES
FOR THE
FEATHER RIVER DRIVE & DRIFTWOOD PLACE
ROUNDABOUT INSTALLATION
Federal Project No. CML-5008(224)
City Project No.
WT25055
Issued by:
City of Stockton
Public Works Department
22 E. Weber Avenue, Room 301
Stockton, CA 95202
Date Issued: November 5, 2025
Date Proposals Due: November 26, 2025
Late Submittals Will Not Be Accepted
1.0 INTRODUCTION
The City of Stockton (City) requests a Technical Proposal from qualified consulting firms
to provide professional consultant services to design a roundabout at the intersection of
Feather River Drive & Driftwood Place. A selection committee will comprehensively rank
firms based on, but not limited to, proposals, qualifications, references, and other
relevant information.
The Consultant must be familiar with Congestion Mitigation and Air Quality (CMAQ) and
Carbon Reduction Program Local (CRPL) funded projects, Caltrans Local Assistance
Programs Guidelines (LAPG) and Local Assistance Procedures Manual (LAPM).
Likewise, the Consultant and Consultant staff must demonstrate recent roundabout
design experience. The consultant shall also provide assistance during the construction
phase of the project.
2.0 BACKGROUND
The City recently secured CMAQ/CML funds for the design and construction of a new
roundabout at the intersection of Feather River Drive & Driftwood Place. The project
proposes to replace the current 3 stop signs at the T-intersection of Feather River Drive
& Driftwood Place with a roundabout to reduce congestion and improve safety. The
roundabout will feature a dedicated right hand turn lane onto Driftwood Place from
Feather River Drive, for southwest traveling traffic.
3.0 PROJECT DESCRIPTION
The proposed project converts an existing stop sign at the T-intersection of Feather
River Drive & Driftwood Place to a roundabout, including ADA compliant curb ramps,
crosswalks, and connecting to an existing Class II bike lane. The roundabout may
feature a dedicated right hand turn lane onto Driftwood Place from Feather River Drive,
for southwest traveling traffic. Right of Way (ROW) acquisition may be needed for the
proposed right hand turn lane.
(See Attachment A – Vicinity Map).
4.0 SCOPE OF WORK
Each consultant shall prepare a detailed scope of services for the design of this project
based, in part and at a minimum, on information presented in this Request for Proposal,
and other available information. The consultant shall provide a cost proposal, which
accomplishes the objectives of the project.
The consultant shall incorporate in their design the installation of the roundabout at the
Feather River Drive & Driftwood Place intersection, including synchronization to City
infrastructure, ADA compliant curb ramps, crosswalks, and installation of a new Class II
bike lane connecting to an existing Class II bike lane.
Consultants are encouraged to include items that are thought necessary for this project.
4.1 Background Research
The consultant shall research and review existing topographic mapping, photos, right of
way maps, “as-built” plans, record maps, surveys, assessor maps, local street
improvement plans, collision reports, sight distance, approach speed, total pedestrians
and vehicle volumes, public transit routes, grade, need of advance warning signs and
flashers, and other geometrical and operational characteristics for the project.
The Consultant shall conduct field reconnaissance of the entire project limits. The
Consultant shall work with all pertinent utilities to identify conflicts, coordinate utility plan
reviews, conduct necessary coordination meetings, and locate designed improvements
as required to facilitate any utility relocations. The consultant will need to coordinate
with the City to the maximum extent possible to route this information to utility
companies. Consultant must show all existing utilities that will be impacted or cause
impact by the proposed project. The consultant is responsible for arranging and
coordinating with all utility companies, within the project sphere, to resolve any utility
issues.
The Consultant shall identify required permits, prepare all permit applications, and
assist the City with negotiations relative to permit conditions, if required. Permit fees will
be paid by the City.
4.2 Environmental Services
The project is funded with federal funds, and therefore California Environmental Quality
Act (CEQA) and National Environmental Policy Act (NEPA) compliance is required
through Caltrans District 10 Office of Local Assistance. The consultant shall be
responsible for coordinating with Caltrans and Stakeholders as needed, including
completion of the Preliminary Environmental Study (PES). Consultant will prepare any
studies that Caltrans requires in the approved PES.
The consultant shall be responsible for printing, mailing, delivering, and distributing to
appropriate Agencies and Stakeholders to obtain environmental clearance.
4.3 Utility Coordination
The consultant will be responsible for performing utility investigations and coordination
with utility owners throughout the project development process. The Consultant will be
present at all necessary meetings with each utility owner. The consultant will be
responsible for, but not limited to, the following:
• Prepare a project limits map and request utility information from each utility owner within
the area of work.
• Prepare Utility Letter “A” during preliminary design phase to the affected utility owners
for City to review and approve prior to transmitting to utility owners. Information on
existing utilities obtained as a result of the “A” letter will be transferred to base maps in
both plan and profile view. A copy of the utility data obtained from utility owners will be
provided to the City and the originals will be filed in the project files.
• Prepare Utility Letter “B” during 65% design phase to the affected utility owners for City
to review and approve prior to transmitting to utility owners. Two sets of half-sized 65%
plans will be provided to each utility owner as an attachment to the letter. The letter will
request that utility owners verify any utility conflicts with proposed improvements and
indicate whether any future utilities are proposed in the area that may require
accommodation through the improved area. Information on existing utilities obtained as
a result of the “B” letter will be used to determine potential utility conflicts and to resolve
the conflicts identified. A copy of the utility data obtained from utility owners will be
provided to the City and the originals will be filed in the project files.
• Prepare Utility Letter “C” during 100% design phase to the affected utility owners for
City to review and approve prior to transmitting to utility owners. Two sets of half-sized
100% plans will be provided to each utility owner as an attachment to the letter. The
letter will indicate to the utility owners whether any changes have been made to the
project plans since the Utility Letter “B” and will request written confirmation of utility
relocations and utility relocation schedule. A copy of the utility data obtained from utility
owners will be provided to the City and the originals will be filed in the project files.
• Consultant shall meet with utility companies as needed to ensure that conflicts are
identified and relocations performed if necessary.
• Consultant will use data provided by utility companies and perform field work such as:
potholing, ground penetrating radar, or other technology to confirm depth information.
This field work should be performed as soon as possible so that conflicts can be
identified, and utility companies can be notified of any necessary relocating.
4.4 Plans, Specifications, and Estimate
The Consultant shall prepare complete PS&E documents, which include design
improvement plans, traffic control plans, electrical plans, drainage plans, technical
specifications, and engineer’s estimate. The PS&E shall be prepared according to the
City’s standards and current CA MUTCD, as appropriate. Consultant shall use modeling
software to determine acceptable Level of Service (LOS) and geometric layout and
submit recommendations to City for concurrence. Prepare a base map showing
existing information to facilitate the design of all the necessary improvements. The
base map limits shall be sufficient to cover all necessary improvements within the
project area.
A. Roundabout Design Process – Intermediate Reviews
Improvement plans for roundabout addition and striping, roadway, drainage, electrical,
erosion control and or water pollution prevention and miscellaneous plans shall be
submitted for review to the City at 30%, 65%, 90% and 100% completion stage. The
Consultant will provide one electronic (PDF format). With each stage, the review
comments from the previous stage shall be itemized and a written response to each
shall be prepared in a comment matrix. The original red-line comments from the
reviewing agency shall be returned with the succeeding submittal.
Consultant shall provide a project specification outline and project estimates at the 65%
submittal and complete project estimate and specification at 100% submittal. A 100%
check print must be submitted for review by staff prior to a 100% set of plans being
plotted on mylars.
1. Preliminary 30% Design
At a minimum the 30% design should include a basic geometric configuration of
roadway striping layouts, curb alignments at round corner improvements, and typical
cross sections. Consultant to consider turning motions of nearby schools and residential
homes, Stockton Fire Department, San Joaquin Regional Transit District, and Stockton
Waste Management vehicles, as well as semitrucks with trailers when designing the
project. Consultant to identify right of way (ROW) that will be required.
2. PS&E (65% Complete)
At a minimum the design should be developed to adequately identify locations of
utilities, right of-way, geometric features, and other design elements. Project estimates
and specifications shall be included at this stage.
3. PS&E (90% Complete)
The review comments from the 65% submittal shall be itemized and a written response
to the comments shall be prepared in a comment matrix. The original red-line mark-up
from the City shall be returned with the succeeding submittal.
4. Final PS&E (100% COMPLETE)
Complete design revisions from PS&E 90% design. Detailed project estimates and
specifications shall be included at this stage. This is the final design, including final
construction staging and work zone traffic control, and utility coordination. Consultant
shall coordinate with PG&E for power service as needed. The Consultant will provide
the necessary final PS&E documents in a bid-ready form. Project files and the Project
Engineer’s/Resident Engineer’s file will also be submitted with the Final PS&E.
This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.