4 csengineermag.com august 2019
MARK C. ZWEIG, CHAIRMAN, ZWEIG GROUP LLC
CIVIL+STRUCTURAL ENGINEER IS A ZWEIG GROUP PRODUCT
800-466-6275
1200 North College Avenue, Fayetteville, AR 72703
PO BOX 1528, Fayetteville, AR 72702-1528
Civil + Structural Engineer (ISSN 23726717) is published monthly by Zweig Group, 1200
North College Avenue, Fayetteville, AR 72703. Telephone: 800.466.6275. Copyright© 2019,
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 domestic print subscription rate is $15 for 12
issues or $30 for 24 issues. Annual digital subscription is free. All print subscribers receive
digital editions in addition to print subscription. Call or write for international rates. To subscribe
or update your subscription information, please visit our website www.csengineermag.com/
subscribe/; or mail subscription requests and changes to Circulation Dept, C + S Engineer,
1200 North College Avenue, Fayetteville, AR 72703; or call 800.466.6275.
publisher
Chad Clinehens, P.E. | 501.551.2659 | cclinehens@zweiggroup.com
DIRECTOR OF SALES
Beth Brooks | 479.502.2972 | bbrooks@zweiggroup.com
Production & circulation manager
Anna Finley | 479.435.6850 | afinley@zweiggroup.com
EDITOR-IN-CHIEF
Richard Massey | 479.856.6122 | rmassey@zweiggroup.com
ART director
Maisie Johnson | 479.435.6978 | mjohnson@zweiggroup.com
For subscriptions or change of address,
please visit our website
csengineermag.com/subscribe/
or call 800-466-6275
VOLUME 5 ISSUE 17
csengineermag.com
Expert
Project Managers
Superior
Warranties
Energy
Efficient
No Money Down Financing, Terms Up To 7 Yrs and As Low As 5.99% on buildings
for nearly 40 years clearspan
has been helping companies maximize profits with superior building solutions
LET'S BUILD
YO U R I D E A L
STRUCTURE
To find out how we can
help with your structure needs visit or call
www.clearspan.com 1.866.643.1010
