CALIFORNIA HIGH SPEED RAIL AUTHORITY – PALMDALE TO BURBANK SECTION – ENVIRONMENTAL & ENGINEERING
Services:
Utility Investigations & Verifications
Utility Relocation Design
Utility High‐Risk/Low‐Risk Assessment Report
Grade Separation Impacts Evaluation
Cross-disciplines Coordination
The Palmdale to Burbank project section will travel from the Palmdale Transportation Center southward to the Burbank Airport Station and is approximately 45 miles long. The project route alternative would tunnel under the San Gabriel Mountains. The proposed project route should be the shorter route and avoid many impacts to communities along the SR 14 corridor. However, this route alternative must be studied in depth to fully understand both community and resource impacts. The Alliance Group Consulting (TAGC), as part of the selected design team, is responsible to investigate the potential impacts of all major and high‐risk utilities along the corridor for each of the alternative rail alignment to complete the Environmental Impact Studies/Environmental Impact Report (EIR/EIS). TAGC is also responsible for the preparation of the High‐Risk Utility Reports for each sub section and/or alignment and to assist team on the conceptual design of access roads, grade separation along with the preparation of the quantity take‐off associate with those components.
The Metro train being tested along Metro’s Crenshaw/LAX light rail line. (Photo by Ringo Chiu)
This project is an 8.5‐mile light rail project which extends services between the existing Metro Green Line near the Aviation/LAX Station northward, to the existing Exposition Line at the intersection of Crenshaw Boulevard and Exposition Boulevard. The total construction cost of this project is $2.06 billion dollars. TAGE is responsible to represent Metro and to both perform and facilitate the design oversight for all civil components of the entire corridor. The project corridor includes several aerial guideway sections, street running sections, and three underground cut & cover sections, with an underground bored tunnel. Along this vertically diversified route there is also an aerial station, several at‐grade stations, three underground stations, three new Park & Ride facilities, and numerous California Public Utilities Commission (CPUC) at grade crossings. TAGE has also taken the lead role representing Metro in working with the Design‐Builder and third‐party utility owners in many aspects of the design and coordination. Under this Design Oversight/PMCM contract, TAGE is responsible for performing the Over‐The‐Shoulder review on several submittals from the Design‐Builder, including the Project Management Plan, Design Work Plan, Master & Baseline Schedule, Master Submittal List, Visual Quality Report, Type Selection Report for the I‐105 and I‐405, along with many technical submittals addressing guideway design, track alignment, grade crossing & roadway improvements, drainage design, aerial & underground structures, stations and many other civil components of the LRT systems.
LA METRO—PURPLE LINE EXTENSION SECTION 3 LIGHT RAIL TRANSIT CORRIDOR PROJECT (DESIGN‐BUILD)
The last section of the LA Metro Purple Line Extension Transit Project, Section 3, will add 2.56 miles of new rail to Metro’s Rail system and connect downtown Los Angeles to the Westside. The two new stations will be added at Wilshire/Westwood and on the U.S. Department of Veteran Affairs property. The project will be delivered via Design Build method and requires fast‐paced and close coordination with various design disciplines and public agencies along with multiple local stakeholders includes Caltrans, cities, County of Los Angeles and various utility owners. The Alliance Group Enterprise, Inc. is responsible for the roadway restoration design for various roadway sections & intersections along Wilshire Boulevard by UCLA station. Besides, TAGE is responsible for the evaluation and drainage studies/design of Lot 36 which demolishes the existing building for staging use, then restore the site as a new parking lot.
Services:
Sidewalk & ADA Ramp Design
Street Improvements & Pavement Design
Hydraulics & Hydrology Evaluations
Grading & Drainage Design
Parking lot layout & design
Utility Coordination and cross disciplines design coordination
Right‐of‐Way Impact Assessment Support
MTA, LACFCD and local stakeholders / city departments coordination
LA METRO—G LINE BUS RAPID TRANSIT (BRT) IMPROVEMENTS PROJECT (PROGRESSIVE DESIGN‐BUILD)
Services:
Hydraulics & Hydrology Studies
Stormwater Captured, Infiltration & Management
Water Quality Management & Design
Specifications & Cost Estimation
The Metro G‐Line (previously known as the Metro Orange Line) is one of two Metro Liner bus routes that has dedicated lanes on freeways and surface streets. It provides a vital high‐capacity transit link for the San Fernando Valley and extends nearly 18 miles in length from the North Hollywood Red Line station to Chatsworth, with a spur to Warner Center. The proposed project is to improve operating speeds, capacity and safety, while addressing passenger needs and minimizing disruption to San Fernando Valley residents. The propose improvements include grade separation on major streets, technology for better signal preemption with a four‐quadrant gating system. One of the important components of the project is the Storm Water Capture. The Alliance Group Enterprise, Inc. is responsible to lead this design effort for the project. The Metro G‐Line Stormwater Infiltration and Quality Management aims to divert stormwater runoff from existing regional storm drains and surface flows to a network of underground pretreatment and infiltration facilities across approximately seven storm water best management practices(BMP) clusters within Metro owned parking lots and ROW adjacent to the active corridor. The proposed Project would add a largely subsurface beneficial use without disrupting primary transportation functions. The proposed BMP clusters have the potential to include active diversion structures (pump stations) or gravity-driven diversion structures.
