I-15 Interchange Improvement Project
Temescal Canyon Road and Bundy Canyon Road
Background
This project proposes modifications for Temescal Valley and the City of Wildomar in Riverside County, CA. This project focuses on interchange improvements for the I-15 Temescal Canyon and Bundy Canyon interchanges to accommodate projected population growth and improve existing bike and pedestrian facilities to promote active transportation. Two design alternatives are evaluated for each interchange and the preferred alternative is chosen based on the following parameters: Intersection Safety and Operations Assessment Process (ISOAP) Results, Benefit/Cost, Complete Streets, Environmental Impact, Constructability, Right-of-Way Impact, and User Expectations.
Public Service Announcement (PSA)
Alternatives
Temescal Canyon
Temescal Valley, CA
No Build
Alternative 1: Ramp Widening
Aims to reduce congestion with the addition of a second lane for the northbound ramps and an added through lane for the southbound off-ramp.
Alternative 2: Hook/Cloverleaf Hybrid - Selected
Implements two hook ramps, a spread diamond ramp, a loop ramp, and a mobility hub. Requires the purchase of right of way.
Bundy Canyon
Wildomar, CA
No Build
Alternative 1: Ramp Widening
Addresses traffic congestion through widening on-ramps from one to two lanes and off-ramps from two to three lanes.
Alternative 2: Diverging Diamond - Selected
Has fewer conflict points than the conventional diamond interchange and allows for uninterrupted left turns onto ramps.
Deliverables
The Preliminary Environmental Analysis Report evaluates environmental factors impacting the project such as water quality, air quality, biological species, and historical landmarks.
The Project Study Report summarizes all of the deliverables and shows how the preferred alternative was chosen.
The Intersection Safety and Operations Assessment Process adopts the Safe Systems Approach which prioritizes the reduction in fatal and serious injury crashes.
Benefit/Cost Analysis
Evaluates the benefit to cost ratio of each proposed alternative through converting crash reductions into costs.
Cost Estimates
Displays costs for roadway, structural, right of way, and support item as wetotal project cost for each alternative.
Weighted Decision Matrix
Evaluates ratings of seven criteria and ratings for each alternative to choose the most feasible alternative.
Complete Streets Decisions Document
Points out deficiencies and recommends complete street elements.
Construction Staging
Presents plans for construction phases for each alternative.
Risk Register
Evaluates projects risk statements, assessment, and response.
Our Team
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Diego Simmonds, EIT
Project Manager
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Vincent Truong, EIT
Project Manager
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Charles Tran, EIT
Traffic Lead
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Kaylynn Huynh, EIT
Traffic
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Sebastian Echeverri
Traffic
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Leslie Valencia
Traffic
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Avery Patrick
Traffic
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Yanetzy Rodriguez
Environmental Lead
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Defeng Chen, EIT, ENV SP
Environmental
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Alvin Han
Environmental
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Azriel Olmedo, EIT
Design Lead 1
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Dania Shaker
Design 1
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Brandon Nguyen
Design 1
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Jenny Nguyen
Design 1
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Riley Mitchell, EIT
Design 1
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Iram Rahman, EIT
Design Lead 2
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Jose Cabezas
Design 2
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Angela Watkins
Design 2
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Isaac Lee, EIT
Design 2
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Samuel Kala, EIT
Design 2
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Dr. Yongping Zhang, PE
CPP Faculty Advisor
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Justine Niu, PE
Caltrans Advisor
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Jason Collado, PE
Caltrans Advisor