| Business | Phone |
| Iowa Dept For The Blind 411 3rd St Se 745, Cedar Rapids 52401 | (319) 365-9111 |
| Transportation-Materials Lab 5455 Kirkwood Blvd Sw, Cedar Rapids 52404 | (319) 366-1614 |
| Transportation-Mntnc Manager 5455 Kirkwood Blvd Sw, Cedar Rapids 52404 | (319) 365-3558 |
| Transportation-Res Constr 5455 Kirkwood Blvd Sw, Cedar Rapids 52404 | (319) 365-6986 |
| Commercial Vehicle Enforcement 154 Collins Rd Ne, Cedar Rapids 52402 | (319) 373-5242 |
| Maintenance Garage 5455 Kirkwood Blvd Sw, Cedar Rapids 52404 | (319) 364-8189 |
| Material Engineer 2604 16th Ave Sw, Cedar Rapids 52404 | (319) 366-0446 |
| East Central Iowa Transport 430 16th Ave Sw, Cedar Rapids 52404 | (319) 364-0235 |