Main Navigation   Home   Public Involvement   Project Background   Corridor Segment     Layouts   Interchange    Alternatives   Contact Information   Submit Comments Back to SD DOT		SD100 - Contacts Mark Leiferman, Chief Road Design Engineer 700 East Broadway Ave. Pierre, SD 57501 (605) 773-3433 E-mail Steve Hoff, Project Manager HDR Engineering, Inc. 6300 S. Old Village Place, Suite 100 Sioux Falls, SD 57108 (605) 977-7740 E-mail

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