REQUEST FOR PROPOSALS
PROFESSIONAL SERVICES
FOR THE
AIRPORT WAY AND SIXTH STREET TRAFFIC SIGNAL
INSTALLATION AND SYNCHRONIZATION
Federal Project No. CRPL-5008(217)
City Project No.
WT25040
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, 3:00 PM
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 new traffic signal at the
intersection of Airport Way and 6th Street and synchronize signals along Airport Way
between Dr. MLK Jr. Blvd and Arch Airport Rd. 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/CRPL funds for the design and construction of a new
traffic signal at the intersection of Airport Way and 6th Street. The project proposes to
replace the current one way stop sign at the T-intersection of Airport Way and 6th Street
with a traffic signal to reduce congestion and improve safety by reducing unprotected
turns. Currently the intersection operates at a level of service (LOS) D experiencing
peak congestion between 7:00am to 7:30pm during weekday hours. Airport Way is an
existing two-way median barrier separated road running northwest/southeast bound
traffic. 6th Street is a residential corridor running east/west bound traffic to Airport Way.
3.0 PROJECT DESCRIPTION
The proposed project converts an existing stop sign at the T-intersection of Airport Way
and 6th street to a traffic signal. In addition, coordinate signalized intersections along
Airport Way from Dr. Martin Luther King Jr. Blvd to Arch Airport Road.
(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 traffic light at the
Airport Way and 6th Street intersection, including synchronization to City infrastructure
throughout the intersections along Airport Way from Dr. Martin Luther King Jr. Blvd to
Arch Airport Road.
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. Based on existing map information, some surveying work
A. Traffic Signal Design Process – Intermediate Reviews
Improvement plans for traffic signal addition and connectivity, 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) and ten (10) hard copy
sets of PS&E (1 - 24” x 36” plan sets, and 9 half-scale plan sets on 11” x 17”) at each
design stage to the City for review and comments. 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.
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.