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Design Memos issued prior to January 1, 2011, except those listed below, have been archived.

Last Updated: 05/24/2012

Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	PDF Files
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	Policy	Advisory	Attachments
12-08	05/17/12	September 12, 2012, Letting	410-5.01(06), 410-5.01(07)	Mechanically-Stabilized-Earth Retaining Wall Design		Advisory	RSP 731-R-597 IDM Figure 410-5(0)A IDM Figure 410-5(0)B
12-07	05/15/12	September 12, 2012, Letting	83-2.06	Portable Changeable Message Sign		Advisory	RSP 801-C-229 IDM Figure 83-2E
12-06	04/26/12	August 8, 2012, Letting	14-3.03, item 1	Plans-Sheets Size		Advisory
12-05	03/14/12	Immed	72-2.05	Bridge Condition Appraisal Report Submittal - Content and Order		Advisory
12-04	03/01/12	Immed	40-8.04(01) item 3	Design Exception Level One Request Routing and Approval		Advisory	IDM Figure 40-8C
12-03	02/21/12	Immed	14-2.01(12)	Stage 3 Plans-Review Submission		Advisory
12-02	02/16/12	Immed	31-4.05(06)	Pipe Lining		Advisory
12-01	01/06/12	Stage 2 Submission On or After 03/01/12	Part 6 - Structural Design	Indiana Design Manual Rewrite		Advisory
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	PDF Files
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	Policy	Advisory	Attachments
11-25	12/22/11	04/13/12, Letting	52-11.01 item 5	Ultrathin Bonded Wearing Course		Advisory	RSP 414-R-590
11-24	12/22/11	04/13/12, Letting	52-11.01 item 4	Microsurfacing		Advisory	RSP 411-R-432
11-23	10/28/11	01/11/12, Letting	77-4.03, 77-4.04	Traffic-Signal Cantilever Structure		Advisory	RSP 805-T-169 RSP 922-T-168 RPD 805-T-177d
11-22	10/25/11	Immed	17-5.11, 17-5.11(04), 17-5.11(05)	Structural Steel Cleaning & Painting		Advisory	E619-PRWS-01
11-21	10/19/11	01/11/12, Letting	77-5.05	Signal Conduit		Advisory
~~11-20~~						~~Advisory~~	~~RSP 805-T-169~~ ~~RSP 922-T-168~~ ~~RPD 805-T-177d~~
11-19	09/20/11	Immed	14-2.01(05) item 9, 14-2.01(07) item 14, 14-2.01(12) item 15, 14-2.04(04) item 10	Fish and Wildlife Review, and Environmental Consultation Form		Advisory
11-18	09/15/11	Immed	76-3.02, 76-3A	Pavement Markings		Advisory	Fig 76-3A
11-17	09/07/11	Immed	20-2.02(04)	Non-Participating Pay Items		Advisory
11-16	08/18/11	09/08/11, Letting	31-4.05, 31-4.06	Specialty Drainage Structures		Advisory
11-15	08/18/11	Immed	17-1.05	Proprietary-Material Use		Advisory
11-14	08/17/11	Immed	22-5.01	Use of U.S. Survey Foot		Advisory
~~11-13~~						~~Advisory~~	~~E619-PRWS-01~~
11-12	07/08/11	Immed	None	Metric-Units Plans		Advisory
11-11	07/08/11	Immed	14-2.01(12) item 17	Right-of-Way Certification		Advisory
11-10	07/08/11	09/08/11, Letting	49-4.02(01), 49-4.02(04), 49-8.01(04), 49-9.02	Bridge-Approach Guardrail and End Treatments		Advisory
11-09	04/05/11	05/11/11, Letting	49-5.01(04)	High-Tension Cable-Barrier System (CBS)		Advisory	RSP 627-R-546 RPD 627-R-546d
11-08	04/05/11	See Memo	Chapters 22, 23, 26	InRoads Survey Format		Advisory
~~11-07~~						~~Advisory~~	~~RSP 627-R-546~~ ~~RPD 627-R-546d~~
11-06	03/07/11	See Memo	32-6.07	Bridge-Scour-Analysis Q₅₀₀ Discharge Determination		Advisory
11-05	3/04/11	See Memo	See Memo	Revised Indiana Design Manual		Advisory
11-04	01/24/11	Immediately	None	New Consultant Performance Evaluation Manual — Consultants		Advisory
11-03	01/24/11	Immediately	None	New Consultant Performance Evaluation Manual — In–House		Advisory
11-02	01/07/11	Immediately	20-2.02(04)	Non-Participating Pay Items		Advisory temporarily withdrawn
11-01	01/07/11	See Memo	none	Use of AASHTO LRFD Bridge Design Specifications	Policy
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	PDF Files
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	Policy	Advisory	Attachments
10-30	12/06/10	12/15/10	20-2.01	Inputting Data for Cost Estimate		Advisory
10-29	11/22/10	01/12/11, Letting	76-3.0	Pavement Marking Materials		Advisory
10-25	10/29/10	03/09/11, Letting	none	Department-Personnel Project-Site Use of Cellular Telephones or Radios		Advisory	628-C-164
10-24	10/14/10	Immediately	PDP 14-1.02(03) items 23 & 24, Figure 14-1E	Final Tracings Checklist		Advisory	14-1.02(03) Fig 14-1E
10-19	07/28/10	See Memo	31-3.04(07)	Culvert Sumping		Advisory	RSP 723-R-568 RPD 723-R-569d
10-15	04/22/10	09/01/10, Letting	17-4.02(01)	Subgrade-Treatment Types		Advisory	207R577
10-14	04/22/10	Immed	Figs 52-8B, 52-8C	Pavement or Overlay Performance Criteria Pavement Engineering Web page		Advisory
10-12	04/06/10	Immed	14-1.02(04), 14-1.02(06)	ERMS File Title-Naming Conventions		Advisory
10-11	03/26/10	08/04/10, Letting	17-5.03, item 2	Test Piles		Advisory	701-B-132
10-10	03/16/10	07/07/10, Letting	51-7.06	Nonmotorized-Vehicle-Use Facility Pavement Sections		Advisory	207R575 402R571d 402R572d 502R573d
10-09	03/04/10	Immed	14-2.01, 14-2.02, & 14-2.04	Project Commitment Report		Advisory
10-08	02/25/10	Immed	17-4.10(02)	Temporary Seed Mixtures		Advisory
10-07	01/29/10	Immed	85-2.05, 85-2.07(01) item 1.p, Figs 85-2C & 85-2F, 85-2.10 items 3-9	Mitigation-Sites Information on Right-of-Way Plans		Advisory
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	PDF Files
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	Policy	Advisory	Attachments
09-33	12/14/09	03/03/10, Letting	51-1.08	Modification Project Which Requires American Disability Act (ADA) Component Upgrades	Policy
09-28	12/14/09	Immed	7-1.01(05)	Project Commitment Database Implementation, ERMS Project File Naming Conventions		Advisory	Fig 09-28A Fig 09-28B
~~09-14~~						~~Advisory~~
09-13	05/08/09	09/10/09, Letting	75-6.01	Overhead Box-Truss Sign Structures & Foundations		Advisory
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	PDF Files
Number	Memo Date	Effective Date	Affected Design Manual Section	Subject	Policy	Advisory	Attachments
08-10	05/19/08	Start Plans Development after 01/01/08	70-1.0	Construction, Maintenance, & Inspection Manual for Major or Complex Bridge		Advisory
07-12	10/16/07	Immed		Pipe-Material-Selection Computer Program		Advisory
07-10	07/26/07	Immed	82-3.05	Worksite Increased-Penalty Signs		Advisory	RPD Eng. 801-R-542d RPD Eng. 801-R-543d R RPD Eng. 801-R-544d RPD Met. 801-R-542d RPD Met. 801-R-543d RPD Met. 801-R-544d
03-07	7/02/03	Immed	unknown	Policy for Context Sensitive Solution	Policy
01-14	12/10/01	Immed	unknown	Water Main & Sanitary Sewer Construction in Contracts		Advisory