Writing Mastering AutoCAD^® Civil 3D^® 2015 was a tough journey for both of us, but we made it through. The work on the book happens after normal work hours and on weekends, so it has been five months of non-stop writing and editing. We'd like to thank Paul Gaughan and Willem Knibbe for giving us the opportunity to take on this project. We'd also like to thank the editors for helping us make this book as outstanding as it is: Sara Barry, Tom Richardson, Becca Anderson, and Linda Recktenwald. And finally, thanks to the readers who keep this book alive and going.

—Cyndy Davenport and Ishka Voiculescu

I'd like to thank Wiley for the second opportunity to participate in this project and the editors who kept me on task: Sara Barry and Tom Richardson. I'd also like to thank the company I work for, Bowman Consulting Group, for providing the dataset used in the majority of the book. Thanks to Ish for stepping in to partner with me on this expedition. And finally, thanks to those in my life who support and encourage me to achieve my dreams.

—Cyndy Davenport

First of all I'd like to thank Cyndy for taking me on this late-nights and full-weekends journey and Wiley and their editorial crew for the opportunity to be part of this wonderful project. Also, I have to thank our editors Tom and Sara for their helpful suggestions to steer this work in the right direction.

On a personal level, I know I could have not made it through without the support and love of my wonderful wife, Danielle, and the four bundles of joy that we share: Colin, Ethan, Liana, and Elsa. Thanks and love from Hubby and Daddy.

On a professional level, I am thankful for the awesome crew at Northern Engineering & Consulting Inc. (NECI) up in the frozen Bemidji, Minnesota, who brought me into this civil engineering world and helped me grow. Thanks are in order for Tom Groll from Tom Groll Engineering, PC, in Austin, Texas, an outstanding boss, who through his dedication to work inspired me to give my best in all that I do. Last, I am thankful for all the people I get to share my workday with from the Engineering Services Division of the City of Austin Public Works Department.

Finally, I want to thank to everyone who helps and supports me on this journey through the civil engineering wonderland.

—Ishka Voiculescu