Current Construction Memorandums

Construction Memorandums are issued by IDOT's Bureau of Construction to distribute policy information.

Special Instructions: The current memos are available for download. Users can download individual memos or all memos. To download an individual file to your hard drive click the link with the right mouse button, then choose "save target as." To view the file, click the link with the left mouse button. An index with links to all the current memos is also available. After downloading, the memo files and the index must be placed in the same directory.

Files are in Adobe PDF format. Adobe Reader is required to view these files.

1Purpose of Construction Memorandums, Index and Extension of Expiration Dates11/24/2003
2Construction Projects Incorporating Experimental Features5/1/2002
3Specification Changes for Projects Under Contract1/3/1995
4Authorization of Contract Changes1/23/2017
5Project Acceleration12/7/2015
6Procedures for Local Agency Contracts Exempt From Federal Oversight1/1/2012
7County and Township Roads Used as Haul Roads - Section 1074/26/2002
8Independent Weight Checks and Scale Checks10/1/2000
9Force Account Billing – Article 109.041/1/2008
10Vibratory Rollers Approved for Use in Illinois Article - 1101.01(g)4/1/2006
11Hot Mix Asphalt (HMA) Spreading and Finishing Machines Approved for Use in Illinois – Article 1102.031/1/2008
14Labor Compliance - Federal-Aid Highway Projects4/1/2016
22Procedures for Applying the Bituminous Materials Cost Adjustment3/1/2009
24Equal Employment Opportunity Contract Provisions and District Responsibilities3/1/2006
28Administration of Contract Time - Articles 108.03, 108.04, 108.05 and 108.083/1/2009
30Policies and Procedures for Approval of Subcontractors4/26/2012
33Operational Review of Contract Quantities5/1/2012
39Transportation or Operation of Heavy Equipment on Pavement or Bridges Within the Contract Limits - Article 107.164/1/2006
40Rubblizing PCC Pavement and Placing a Bituminous Concrete Overlay6/1/2001
43Coring Policy for Thickness Determination – Sections 353, 354, 355, 356, 407, 420, 421, 482 and 4831/1/2009
46Field Control of Railroad and Utility Adjustments6/4/2002
55Placement of Hot Mix Asphalt – Article 406.061/1/2008
57Plan Preparation and Field Location of Utilities5/31/2002
59Resurfacing of D-Cracked CRC Pavements1/3/1995
60Erosion and Sediment Control5/1/2006
61Guidelines for the Negotiation and Administration of Consultant Contracts for Construction Engineering Services8/15/2003
64Sequential Deck Pours5/15/2007
70Preconstruction Conference Guidelines8/15/2003
71Guidelines for Review of Contract Claims5/31/2002
72Structural Steel Damaged During Deck Removal5/15/2007
74Guidelines for Pumping of Bridge Deck Concrete4/1/2013
75PCC Patching - Opening Road to Traffic1/1/2008
76Contractor Payments - Articles 109.07 & 109.088/1/2016
77Winter Shutdown Procedures11/15/2001
78Bridge Deck Patching5/31/2002
79Contract Closeouts5/1/2012
80Interest for Late Payments1/1/2012
81District Construction Project File Requirements8/10/2016
82Procedure for Calculation Payment for Prime Coat3/12/2014
83Disadvantage Business Enterprise Trucking Goal Credit Documentation4/1/2015
84Errors and Omissions Discovered in Consultant Developed Plans3/15/2017
85Small Fasteners Less Than 1/2" In Diameter (REPEALED)2/1/2016
87Domestic Source Requirements for Small Fasteners less than 1/2" in Diameter5/1/2016
88Domestic Source Requirements for Steel Tie Wire5/1/2016
 Index and All Current Memorandums3/9/2017