| Karen Allen Edwards & Kelcey, Inc. 7300 Metro Blvd, Suite 400 Minneapolis, MN 55439-3074 kallen ekmail.com | 
| John Bender Ament Inc. jbender ament.com |

| David Bovee Stanley Consultants, Inc. 100 Court Avenue, Suite 300 Des Moines, IA 50309 boveedavid stanleygroup.com | 
| Shawn Foutch, P.E. Vice President Iowa Operations Center Manager Kirkham Michael Consulting Engineers Des Moines, Iowa |

| Michael N. Gorman Senior Vice President HWS Consulting Group Inc. mgorman hws.com | 
| Sirpa Hall CH2M Hill Sirpa.Hall ch2m.com |

| Thomas J. Kellogg, PE Senior Vice President/Principal TranSystems Corporation tjkellogg transystems.com | 
| Bob Lentz Earth Tech bob.lentz earthtech.com |

| Dave Meier HDR dave.meier hdrinc.com | 
| Dave Moeller Snyder & Associates dnmoeller snyder-associates.com |

| Kent Nicholson Assistant Road Design Engineer Iowa Department of Transportation Ames, Iowa | 
| Rick White Howard R. Green, Inc. |

| Michael A. Zelinskas, P.E. Vice President WHKS & Co. 1485 Oeth Court Dubuque, IA 52003-7879 |
|
|