C+S June 2022 Vol. 8 Issue 6 (web)

C+S June 2022 Vol. 8 Issue 6 (web)

LET THE GOOD TIMES ROLL Jumbo HSS are now available and ready to order.

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CONTENTS

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THE COVER The Transformation of Treasure Island – story on page 10

CHANNELS STRUCTURES + BUILDINGS 12 Anodized Aluminum Crowns the Iconic St. Louis Skyline 13 Lifecycle Efficiency Begins with Better Designs 15 Designing for Extreme Weather Events 17 Harms Installs 240-Foot Drilled Shafts with Barge-Mounted BAUER BG 55 TRANSPORTATION + INFRASTRUCTURE 20 Valencia Bridge Reconstruction 21 Smooth Asphalt Roads: Standing Up to Nature and Delivering Value WATER + STORMWATER 22 Protecting Portland from floods 24 Duperon increases plant resilience with bar screen that adapts to changing flow conditions 25 WRP Conveying Pebble Lime Pneumatically Ends Elbow Failure 27 Indirect Potable Reuse and the Treatment of NDMA 28 Installing Two 20-inch Sub-Aqueous Water Mains to City Island 30 Performance of Short-Term Beach Erosion Mitigation at Capostrano Bay Community 34 Sustainable Expansion: Stormwater Detention and Reuse BUSINESS NEWS 35 QA/QC: An Engineering Prerogative SURVEYING 37 It Takes a Village

departments 8 Events 38 Benchmarks 39 Reader Index

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Columns 5 From the Publisher: Something in the Water Chad Clinehens 6 Looking Back, Moving Forward: Choosing not to Forget Luke Carothers

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VOLUME 8 ISSUE 6 csengineermag.com

publisher Chad Clinehens, P.E. | 479.856.6097 | [email protected] media manager Anna Finley | 479.435.6850 | [email protected] ART director Maisie Johnson | 417.572.4561 | [email protected] Editor Luke Carothers | [email protected]

800-466-6275 1200 North College Avenue, Fayetteville, AR 72703 PO BOX 1528, Fayetteville, AR 72702-1528

MARK C. ZWEIG, CHAIRMAN, ZWEIG GROUP LLC CIVIL + STRUCTURAL ENGINEER IS A ZWEIG GROUP PRODUCT

Civil + Structural Engineer (ISSN 23726717) is published monthly by Zweig Group, Fayetteville, AR. Telephone: 800.466.6275. Copyright© 2022, Zweig Group. Articles not be reproduced in whole or in part without the written permission of the publisher. Opinions expressed in this publication are not necessarily those of Zweig Group. Unsolicited manuscripts will not be returned unless accompanied by a stamped, self-addressed envelope. Subscriptions: Annual digital subscription is free. To subscribe or update your subscription information, please visit our website www.csengineermag.com/subscribe/ or call 800.466.6275.

For subscriptions or change of address, please visit our website csengineermag.com/subscribe/ or call 800-466-6275

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Something in the Water

Three years ago, Zweig Group launched our “experience” themed leadership roundtables. The first two were held in Kentucky around tours of the various bourbon distilleries that produce 95 percent of the world’s bourbon. The rich family history and how these distilleries approach their business combined with the explosion of demand for bourbon was an inspirational back - drop for these events. The story of Kentucky bourbon and its distilleries is largely also a story of the area’s water. Made from the limestone-rich water that flows in abundance through its streams and rivers, Kentucky bourbon is geographically unique, producing a taste that cannot be replicated any - where else in the world. As luck would have it, something about the water in Kentucky also made these two experi - ences special, getting together a group of leaders of AEC firms who were willing to share their struggles and successes. The environment was rich, and it fostered both the giving and receiv - ing of advice. Over my 25 plus years in this industry, I’ve witnessed the evolution of leaders in AEC becom - ing not only open to sharing their challenges but their magic bullets as well. We’ve become comfortable helping each other as we realize there is plenty of work to go around, and elevating our firms as well as the industry requires us to work together. This is why I am delighted that after two years of being unable to conduct these events, we are hosting our first in-person roundtable next month in Dallas. Unlike previous roundtables, this event is like two events in one. We are hosting a number of industry experts who will share powerful insight through short talks and panel discussions, with the roundtable sessions in between and themed around the areas of discussion. Each attendee will be able to choose 18 topics they want to discuss over the day and a half event. It really will be an innovative event with a unique structure that allows attendees a lot of time to discuss exactly what they want to learn more about while getting access to industry experts on some of the industry’s great - est challenges. Roundtable topics will cover every area of the business including recruiting, retention, scalable growth, succession planning, cybersecurity and IT, the role of the CEO, risk management, M&A, private equity, flexible work policies, training and development, com - pensation and incentive structures, arbitration versus litigation, corporate giving programs, the role of the CSO, building a motivated and aligned leadership team, creating a positive and productive culture, leadership transition, getting more done with less people, the economic outlook, and more. This will be a powerful day and a half to focus on you and your firm as you learn and collabo - rate with industry peers. It will also provide a great connection to be able to keep the conversa - tion going at Elevate AEC in September where we will have some follow-up activities for this group. I hope to see you in Dallas June 23-24, so we can continue to create special environ - ments that foster change and growth in the AEC industry..

Chad Clinehens

Click here to register or to find out more info.

CHAD CLINEHENS, P.E. is Zweig Group’s president and CEO. Contact him at [email protected].

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looking back, moving forward Choosing

“The Dry Salvages” by T.S. Eliot: I do not know much about gods; but I think that the river Is a strong brown god–sullen, untamed and intractable, Patient to some degree, at first recognized as a frontier; Useful, untrustworthy, as a conveyor of commerce; Then only a problem confronting the builder of bridges. The problem once solved, the brown god is almost forgotten By the dwellers in cities–ever, however, implacable. Keeping his seasons and rages, destroyer, reminder Of what men choose to forget. (1941)

Luke Carothers not to Forget

As humans, our relationship with water is biologically etched into the very structures of our most fundamental building blocks. More than half of our bodies are made of water, and we must consume it to survive; water is also essential to the growth of our crops and the health of our livestock. At the same time, water shares an equally important role within the social development of humanity–from the most ancient of our predecessors to this very moment, the presence of fresh water has dictated where and how humans choose to build their communities. In the context of the history of water-based engineering, T.S. Eliot’s musings on our collective relationship with water seem resoundingly astute. The progress of civilization is often marked by its ability to control water and use its power to drive growth in population, industry, and agriculture. Likewise, water systems are often the branches from which the fruits of growth ripen into towns, villages, and cities. The Indus River Valley fostered some of the earliest examples of civilization in known history with settlements such as Harappa and Mohenjo-daro. By taking advantage of annual flooding through irrigation, the Indus Valley Civilization advanced human civilization by domesticating several plants and animals for the first time. However, as the monsoon-fed rivers of the valley began to dry up, so too did the population of Indus Valley Civilization. This is not dissimilar to the growth of towns and cities along the Ohio river in the 19th century. During the years after America’s founding, many Americans began to move to what was then considered the West, settling in the Appalachian mountains. For these early Americans, the Ohio river was a vital trade link, flowing west into the Mississippi then journey - ing south to New Orleans. This meant that crops and manufactured goods from Pennsylvania, Ohio, and Kentucky could be relatively easily transported to ports on the East Coast via New Orleans. With this transportation network established, the Ohio River valley and the Appalachian mountains became integral engines of the American Industrial Revolution. Cities like Cincinnati exploded in population as new industries sprang up to support vital trade along the river. In addition to an already-thriving meat packing industry, new infrastructure was built along the river’s banks to repair steamboats as they moved West, and soon the Miami and Erie Canal flowed into it, bringing even more trade to the city. By the late 19th century, dams were being constructed for the first time on the Ohio River. However, this growth wasn’t to last, and the population remained roughly the same since this time. The same cannot be said for other towns and cities along the Ohio River. Towns like Stubenville, which grew to nearly 40,000 people in the early 20th century, faded as coal fell out of favor and more of the transportation network relied upon rail transportation. This is true of many other cities on the Ohio river who, at the river’s economic peak, were capable of supporting large populations, only to dwindle as the river’s economic reach lessened, echoing Eliot’s sentiment of river’s as “useful” but “untrustworthy” as a “conveyor of commerce.” Eliot’s words ring especially true in the state in which the AEC industry currently finds itself. Rivers no longer belong to those journeying to find new frontiers, they belong to us, the builders of bridges. However, we must journey a different course than that of Eliot’s imagination. Although our understanding of water and how it can be engineered to improve our lives and support growing populations has advanced significantly since the time of the poem’s writing, we cannot see our problems as solved. With increasing threats from climate-related events such as hurricanes and flooding, we are reminded of the power that drew us to settle near water in the first place. As the designers of the world around us, it is the responsi - bility of the AEC industry to not “choose to forget” but to approach these waterways with the same awe and respect that drew the first settlers there.

LUKE CAROTHERS is the Editor for Civil + Structural Engineer Media. If you want us to cover your project or want to feature your own article, he can be reached at [email protected].

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2022 Learning Opportunities Learning is your competitive advantage. Zweig Group is your life-long learning provider of choice.

IN-PERSON SEMINARS

VIRTUAL SEMINARS

JUN 16-17 The Principals Academy Miami, FL

JUN 7, 14, 21, 28

Project Management 11am-12:30pm CT

JUN 22-24 AEC Executive Roundtable Dallas, TX

JUL 12, 19, 26 + AUG 2

Leadership Skills for AEC Professionals 11am-12:30pm CT

Elevating Doer-Sellers Houston, TX Leadership Skills for AEC Professionals New Orleans, LA ElevateAEC Conference & ElevateHER Symposium Las Vegas, NV

JUL 14-15

AUG 11-12

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