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Published February 2, 2026 at 7:00 PM
Updated February 3, 2026
This is a service / maintenance or supply contract in McHenry, Illinois. Contact the soliciting agency for additional information.
This project may contain Federal Funds. The Complexity Factor for this project is 0. The Consultant who is selected for this project and all Subconsultants the Prime Consultant will be using are scheduled to attend an initial meeting on April 23, 2026, at 11:30 AM at the Region One/District One Office in Schaumburg. Phase III engineering services are required to provide construction engineering for subject improvement. A 7-mile roadway reconstruction and add-lanes project. The scope of work involves the reconstruction and widening of IL 31 to provide two lanes in each direction separated by a barrier median, intersection and drainage improvements, pedestrian and bicyclist accommodations, construction of retaining walls and a bridge, and construction of drainage culverts, traffic signal modernization, and aesthetic landscaping. IL 31 is a significant route. Work zone mobility goals are expected to be met. Traffic will be managed with staged construction. One lane in each direction will be maintained throughout stage construction. Three main construction stages are anticipated to carry out the proposed work. The following structures are included in this project: o S.N. 056-W301: IL 31 New RT Retaining Wall from Station 173+17 to 179+80 o S.N. 056-W302: IL 31 New LT Retaining Wall from Station 177+30 to 179+75 o S.N. 056-W303: IL 31 New RT Retaining Wall from Station 180+05 to 182+75 o S.N. 056-W304: IL 31 New LT Retaining Wall from Station 191+81 to 193+60 o S.N. 056-W305: IL 31 New RT Retaining Wall from Station 198+10 to 198+56 o S.N. 056-W306: IL 31 New RT Retaining Wall from Station 199+47 to 200+52 o S.N. 056-W307: IL 31 New RT Retaining Wall from Station 207+90 to 209+79 o S.N. 056-Z027: IL 31 New LT Retaining Wall from Station 211+85 to 212+64 o S.N. 056-W308: IL 31 New RT Retaining Wall from Station 214+83 to 216+93 o S.N. 056-0230: New S.N. 056-0102 IL 31 Over Sleepy Hollow Creek o S.N. 056-0118: New Culvert at Station 186+64, 5X2 o S.N. 056-0100: New Culvert at Station 191+23, 8X4 o S.N. 056-0119: New Culvert at Station 192+41, 6X5 o S.N. 056-0113: New Culvert at Station 199+00, 10X5 o S.N. 056-0120: New Culvert at Station 199+88, 6X6 o S.N. 056-0112: New Culvert at Station 204+20, 6X3 o S.N. 056-0121: New Culvert at Station 229+37, 6X6 The Prime firm must be prequalified in the Special Services (Construction Inspection) category to be considered for this project. Statements of Interest, including resumes of only the key people noted above, must be submitted electronically to the Central Bureau of Design and Environment through the Engineering Prequalification and Agreement System (EPAS). ILDOT - 13 - RFQ - IL 31(Front St) from Ames Rd to IL 176 (Terra Cotta Ave), Phase III Project
Conceptual
Bridges / Tunnels
Public - State/Provincial
Service, Maintenance and Supply
Plans and Specifications are not available for this project. If that changes, they will be made available here.
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August 19, 2026
Front St, McHenry, IL
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