Ill. Admin. Code tit. 92, § 541.APPENDIX A
Region 1
Regional Engineer
| District 1 | Bureau of Traffic 201 West Center Court Schaumburg IL 60196-1096 847/705-4411 | Cook, DuPage, Kane, Lake, McHenry and Will |
Region 2
Regional Engineer
| District 2 | Bureau of Operations 819 Depot Avenue Dixon IL 61021-3500 815/284-5395 | Boone, Carroll, Henry, JoDaviess, Lee, Ogle, Rock Island, Stephenson, Winnebago and Whiteside |
| District 3 | Bureau of Operations 700 East Norris Drive Ottawa IL 61350 815/434-8417 | Bureau, DeKalb, Ford Grundy, Iroquois, Kankakee, Kendall, LaSalle and Livingston |
Region 3
Regional Engineer
| District 4 | Bureau of Operations 401 Main St. Peoria IL 61602 309/671-4460 | Fulton, Henderson, Knox, Marshall, McDonough, Mercer, Peoria, Putnam, Stark, Tazewell, Warren and Woodford |
| District 5 | Bureau of Operations 13473 IL Hwy. 133 P.O. Box 610 Paris IL 61944 217/466-7234 | Champaign, DeWitt, Douglas, Edgar, McLean, Piatt and Vermilion |
Region 4
Regional Engineer
| District 6 | Bureau of Operations 126 East Ash St. Springfield IL 62704-4792 217/782-7314 | Adams, Brown, Cass, Christian, Hancock, Logan, Macoupin, Mason, Menard, Montgomery, Morgan, Pike, Sangamon, Schuyler and Scott |
| District 7 | Bureau of Operations 400 West Wabash Effingham IL 62401 217/342-8261 | Clark, Clay, Coles, Crawford, Cumberland, Edwards, Effingham, Fayette, Jasper, Lawrence, Macon, Moultrie, Richland, Shelby, Wabash and Wayne |
Region 5
Regional Engineer
| District 8 | Bureau of Operations 1102 Eastport Plaza Collinsville IL 62234 618/346-3250 | Bond, Calhoun, Clinton, Greene, Jersey, Madison, Marion, Monroe, Randolph, St. Clair and Washington |
| District 9 | Bureau of Operations State Transportation Building 2801 W. Murphysboro P.O. Box 100 Carbondale IL 62903 618/351-5240 | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson, Johnson, Massac, Perry, Pope, Pulaski, Saline, Union, White and Williamson |
(Source: Added at 34 Ill. Reg. 3025, effective February 19, 2010)