California 26, December 17, 2023

CALIFORNIA STATE EDITION

A Supplement to:

December 17 2023 Vol. IV • No. 26

“The Nation’s Best Read Construction Newspaper… Founded in 1957.”

Your California Connection – Sharon Swanson – 1-760-518-4336 – sswanson@cegltd.com

OC 405 Partners Completes $2B Improvement Project

The joint venture of OHLA USA and Astaldi Construction Corporation — OC 405 Partners — recently completed the massive, $2.16 billion, I-405 Improvement Project.

By Irwin Rapoport CEG CORRESPONDENT

The efforts of OC 405 Partners — a joint-venture of OHLA USA and Astaldi Construction Corporation — led to the completion of the Orange County Transportation Authority’s (OCTA) $2.16 billion, I405 Improvement Project, which had two new regular lanes (one in each direction) and the 405 Express Lanes (two lanes in each direction) open to the public on Dec. 1.

Officials celebrated the completion of the project

with a dedication ceremony that day.

The project, which began in January 2018, was constructed in cooperation with the California Department of Transportation (Caltrans). Financing was provided by a combination of federal, state, and local funds and tolls.

The initiative was launched to improve traffic flow and reduce congestion on one of the nation’s busiest highways, which on a daily basis carries 370,000 cars and trucks.

“I am immensely proud to announce the successful see IMPROVEMENT page 6

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Page 2 • December 17, 2023 • www.constructionequipmentguide.com • California State Supplement • Construction Equipment Guide

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Construction Equipment Guide • California State Supplement • www.constructionequipmentguide.com • December 17, 2023 • Page 3

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Page 4 • December 17, 2023 • www.constructionequipmentguide.com • California State Supplement • Construction Equipment Guide

DZYNE Announces New Manufacturing Facility in Irvine DZYNE Technologies, a provider of advanced uncrewed exemplifying their unmatched cost and performance bene- Partners, added “We are committed to providing the autonomous systems (UAS) for defense applications, recent- fits. In addition, DZYNE has partnered with leading DoD resources necessary to fuel DZYNE’s growth and to deliver ly announced the development of a new 125,000 sq. ft. facil- research and warfighting organizations to design and deliver the cutting-edge technologies demanded by the DoD. ity in Irvine, Calif. an array of advanced ground- and air-launched Group 1-3 DZYNE has established itself as an agile, rapid-response The new facility will house DZYNE's growing team of UAS in support of various conventional and asymmetric creator of innovative autonomous technologies that break engineers, researchers and manufacturing personnel and will customer mission needs. the cost dynamic established by the old guard. Like DZYNE provide the company with the space and resources it needs Ben Slater, chairman of DZYNE, COO of Highlander itself, this facility will be unique in the industry.” to continue developing cutting-edge autonomous DZYNE will host a grand opening ceremony in the defense solutions for U.S. and international cusnew year to showcase the facility and the company’s tomers. latest product offerings and manufacturing capabili“The development of the new facility is a testament ties. This event will also serve as an opportunity to recto DZYNE’s strong partnership and commitment to ognize the efforts of the Department of Defense, key the Department of Defense,” said Matt McCue, preselected officials, U.S. and international partners and ident, co-founder of DZYNE Technologies. the local community for their support of DZYNE’s “DZYNE has worked closely with the DoD since our continued growth. inception in 2012 to develop an array of long endurance, low-cost, loitering and innovative UAS About DZYNE Technologies platforms. With the recently announced Replicator DZYNE is a high-growth, technology developer Initiative, we feel we are now perfectly suited to meet and manufacturer of Group I-V UAS platforms. The the Department’s increased demand for autonomous company’s platforms provide advanced intelligence, defense capabilities. DZYNE's UAS are designed to reconnaissance and surveillance capabilities and the meet the evolving needs of our warfighters and are company specializes in the rapid design, development expected to play a critical role in future operations for and deployment of advanced manned and unmanned the U.S. and its allies.” systems. DZYNE integrates artificial intelligence into DZYNE’s flagship products include the LEAP and its operational aircraft with state-of-art payloads and ULTRA Long Endurance Aircraft (LEA), capable of The new Irvine facility will house DZYNE’s growing team of engi- end effects through concept creation, rapid prototypes providing more than 40 and more than 80 hours of neers, researchers and manufacturing personnel and will provide and finished products and can provide its aircraft with continuous mission endurances, respectively. the company with the space and resources it needs to continue advanced full-motion video and video processing, DZYNE’s LEA products have accumulated world- developing cutting-edge autonomous defense solutions for U.S. and autonomous navigation, and targeting and tracking wide more than 50,000 operational flight hours, international customers. capabilities.  14635 Valley Blvd.

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Gee Heavy Machinery Now NorCal Komatsu Distributor Komatsu and Gee Heavy Machinery LLC announced that Gee is now the authorized distributor of Komatsu construction products in Northern California, effective Dec. 1, 2023.

Gee has assumed the operations of the previous distributor, Core Machinery (f/k/a Road Machinery LLC), in four locations: west Sacramento, Fresno, Redding and Santa Rosa. Gee’s territory covers Northern California, including Monterey, Kings, Tulare and Inyo counties in the central part of the state, and all counties north to the state border.

Gee brings to the territory a seasoned management team with decades of experience in the heavy equipment industry and a multifaceted growth strategy. The company will offer the complete range of Komatsu construction products, comprehensive parts and service support, cuttingedge technology solutions, and an extensive rental inventory with a variety of allied products.

“We’re very excited to partner with Komatsu as their newest distributor in

Northern California. We look forward to bringing our track record of success and innovation in the automotive industry to the heavy equipment market,” said Ryan Gee, distributor principal.

“We are confident that Gee will be a great distribution partner for our Komatsu construction equipment in the region,” said Tim Tripas, senior VP of construction equipment and dealer engagement at Komatsu. “Customers should expect personalized service from the experienced team at Gee, reinforcing the Komatsu focus on customer satisfaction.”

“I’d like to thank the outstanding leadership teams at Komatsu and Core Machinery for all of their support and assistance during this transition,” said Lee Vanderpool, Gee’s president and CEO. “We’re eager to begin delivering outstanding sales and service support to our customers, because their success is our success.”

For more information, visit www.komatsu.com and www.geehm.com. 

Construction Equipment Guide • California State Supplement • www.constructionequipmentguide.com • December 17, 2023 • Page 5

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Page 6 • December 17, 2023 • www.constructionequipmentguide.com • California State Supplement • Construction Equipment Guide

Crews Reconstruct 18 Bridges, Add Lanes in Orange County IMPROVEMENT from page 1

There were more than 50 on- and off-ramps that were reconstructed from asphalt to concrete as part of the project.

Safely building the improvements next to a live freeway with up to 370,000 vehicles per day was one of the larger challenges.

The initiative was launched to improve traffic flow and reduce congestion on one of the nation's busiest highways, which on a daily basis carries 370,000 cars and trucks.

The contractor added one lane in each direction of I-405 between Euclid Street in Fountain Valley and I-605 in Seal Beach; made improvements to streets and freeway on- and offramps; and reconstructed 18 bridges.

completion of the I-405 Improvement Project, the largest undertaking in OCTA’s history,” said OCTA Chairman Gene Hernandez, who also is the mayor of Yorba Linda. “OCTA’s delivery of this project showcases our commitment to Orange County’s voters and to improving the quality of life for everyone who lives, works or travels through this area.”

The project, noted the OCTA, was a cornerstone of Measure M, Orange County’s half-cent sales tax for transportation. In addition to improving travel times along this 16-mi. stretch of freeway from SR 73 in Costa Mesa and I-605 near the Los Angeles County line, it also will accommodate an expected growth in employment, population and housing throughout the region.

Project Construction The JV added one regular lane in each direction of I405 between Euclid Street in Fountain Valley and I-605 in Seal Beach; made improvements to streets and freeway on- and off-ramps; and reconstructed 18 bridges, many that now feature new sidewalks and bike lanes.

“Whether you commute daily, choose to use the 405 Express Lanes or opt for biking and walking through our communities, the I-405 Improvement Project is a testament to our commitment to enhancing Orange County’s transportation system,” said OCTA CEO Darrell E. Johnson. “I want to express my sincere gratitude to the residents, businesses and commuters for their patience during construction as we worked to create a faster and more efficient future in Southern California.”

The project also created the 405 Express Lanes between SR 73 in Costa Mesa and I-605 at the Orange County border with Los Angeles County. The lanes, operated by the OCTA and located in the center of the freeway, allow carpoolers to travel for free and gives solo drivers the choice to speed up their commute via a toll.

The design joint venture was made up of Moffat & Nichol (M&N), Arup and Lochner. The three firms were each the engineer of record for approximately one third of the project.

“The I-405 project’s objective is to reduce commute times for hundreds of thousands of motorists who travel the I-405 daily by adding general purpose and tolled express lanes; reconfiguring 12 interchanges to improve operational efficiency, reduce congestionrelated accidents, and provide safety enhancements,” noted M&N. “Safety enhancements include reducing lane weaving for through traffic, proper shoulder widths, and striping. Pacific Infrastructure I-405 Designers, a design joint venture led by Moffatt & Nichol provided full engineering services for the 16mile highway infrastructure project, including construction support and maintenance of traffic.”

The traffic management plan was based on traffic volumes, bridge construction sequencing, outreach efforts and many other factors.

“The traffic management plan was successful and adjustments were made as necessary throughout the project duration,” said Jeff Mills, I-405 project manager.

“Initially, drivers were traveling too fast in the work zone,” Mills said. “Over time, this issue improved as

OCTA and the contractor implemented several safety mitigations, as well as a robust outreach campaign making the public aware of the 55-mph speed limit. An increased presence by the California Highway Patrol [CHP], speed radar signs that reflected the real-time speed of drivers, and positive protection between traffic and construction zones were important elements to enhance the safety of workers and drivers.

Challenges Safely building the improvements next to a live freeway with up to 370,000 vehicles per day was one of the larger challenges, according to Mills.

“A strong safety culture and plan, along with a well thought out traffic management plan, was key to overcoming this challenge and a strong safety record was achieved,” Mills said.

“Another challenge was the construction of very long bridges — and therefore, deep bridge sections — due to the skewed nature of the local street bridges crossing over the freeway,” he added. “The designbuild delivery method led to good collaboration between the designer and contractor to minimize impacts of the surrounding businesses and residents.”

Overall, the work progressed well in spite of several significant challenges and the improvements were open to traffic on time.

“One of the more significant project issues was the discovery of archaeological resources on the project,” Mills said. “Additionally, contaminated soils and unforeseen utilities posed issues as well.”

Traffic was pushed to the inside of the freeway as the improvements were made to the outside of the freeway, generally behind K-rail. Challenges included unforeseen underground conditions and poor soils.

“Many areas required over-excavation due to poor soil conditions,” Mills said. “The pavement type of the freeway improvements was continuously reinforced concrete pavement.”

Lanes were composed of continuously-reinforced concrete pavement. Two 12-ft. lanes were added in each direction.

There were more than 50 on- and off-ramps that were reconstructed from asphalt to concrete as part of the project, according to Mills.

“Generally, the ramps were closed for approximately one month for reconstruction,” he said. “Providing good sequencing of the work and viable detours were among the challenges.”

There are partial cloverleaf interchanges, diamond interchanges and hook ramps, from a configuration standpoint. The reconstructed bridges typically were over 400 ft. long total and two-spans.

“Most of the 18 bridge replacements were cast-inplace concrete bridges, although there were also several precast concrete girder bridges,” Mills said.

“Many bridges were worked on concurrently, consistent with the project’s traffic management plan,” he added. “The average one-stage bridge took approximately 18-24 months and the average two-stage bridge took approximately 30 months.”

The design-builder installed drainage systems, communications systems, waterlines and sewer lines, among other items.  CEG (All photos courtesy of OCTA.)

Construction Equipment Guide • California State Supplement • www.constructionequipmentguide.com • December 17, 2023 • Page 7

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Page 8 • December 17, 2023 • www.constructionequipmentguide.com • California State Supplement • Construction Equipment Guide

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