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Standards & Specifications, Active Design Memos

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Standards & Specifications, Active Design Memos

Active Design Memos

Design Memos are published on the first Monday of each month. Where Monday is a State holiday, the memo is published the following Tuesday. All revisions to the Design Manual described in these memos have been incorporated into the current Indiana Design Manual (IDM).

Memos appear on this page for a period of 1 year following the date of the memo. After 1 year, they are moved to the Archived Design Memos page.

Memos that include a recurring special provision (RSP) or recurring plan detail (RPD) remain on this page as long as the associated RSP/RPD remains active. Superseded memos are archived immediately.

The practice of distinguishing policy memos from techncial advisories was discontinued January 2018.

This Page Last Updated: 02/03/2020

Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
20-02 01/07/20 Ramp Maximum Grade IDM Section 48-5.04(01)   Stage 3 submittal on or after January 7, 2020
20-01 01/07/20 Pavement Design -Indiana Design Manualreorganization IDM Chapter 304   Pavement Design Approval on or after January 7, 2020
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
19-12 10/10/19 Chapter 503 Maintenance of Traffic Chapter 81, 82, and 83   See Memo
19-11 10/10/19 Proprietary Materials None   N/A
19-10 09/05/19 Terminal Joints 17-5.09(01), 402-7.02(03), and 409-2.04   Lettings on or after March 1, 2020
19-09 09/05/19 Preprint Changes 14-1.02(05)   Contract Lettings on or after November 14, 2019
19-08 Rev. 09/05/19 rev. 10/23/19 Bridge Railing 404-4.0   Stage 3 Submittal on or after September 5, 2019
19-07 09/05/19 Pedestrian Fence 404-4.05   Stage 3 Submittal on or after September 5, 2019
19-06 09/05/19 Practice Pointers None   N/A
19-05 05/06/19 Guardrail End Treatment and Impact Attenuator Spare Parts Packages 17-4.12 (deleted)   Lettings on or after September 1, 2019
19-04 05/06/19 End Bent Details 409-2.04(02) and 409-2.04(03), Figures 409-2A, 409-2C, 409-2D, 409-2E, 409-3A, and 409-3B   As Noted
19-03 05/06/19 Tooth Joint at Terminal Joints 409-2.04(01), Figure 409-2F (deleted)   Immediately
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
18-26 11/08/18 Pedestrian Pushbutton and ADA Plan Details 51-1.06(03)   Stage 3 Submittal on or after March 1, 2019
18-25 11/08/18 Engineering Assessment Manual None   As noted
18-24 11/08/18 Full Depth Reclamation (FDR) Projects and Rule 5 Permits None   Lettings on or after January 1, 2019
18-21 08/06/18 Bundling HMA Quantities None   Lettings on or after
December 1, 2018
18-20 08/06/18 Bridge Aesthetics Policy None   Immediately
18-17 Rev. 08/06/18 rev. 08/08/18 rev. 05/06/19 Bridge Deck Overlays None   Lettings on or after
September 1, 2019
18-14 08/06/18 Hydraulic Memo Templates

None

  Hydraulic Submittals on or after
August 1, 2018
18-12 06/04/18 Office of Hydraulics Review for LPA Projects None  

Lettings on or after July 1, 2018

18-11 05/09/18 Pedestrian Crossing Treatment RRFB Figure 51-7 O   Immediately
18-10 05/09/18 Covering Conflicting Pavement Markings 83-4.01(03)  

Lettings on or after December 1, 2018

18-08 rev. 05/09/18 rev. 05/16/18 Geotechnical Waivers and Investigations for LPA Projects None  

Immediately

18-06 03/05/18 Development of FDR Pavement Projects as Partial 3R 304-6.01 thru 304-6.03  

Immediately

18-05 03/05/18 Plan Note for TAC Approved ADA Inquiries None   Stage 3 Submissions on or after April 2, 2018
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
17-28 12/04/17 Plant Growth Layer None  

Lettings on or after March 1, 2018

17-27 12/04/17 Bridge-Length Culverts None   Immediately
17-23 rev. 10/02/17 rev. 02/05/18 AASHTO LRFD Bridge Design Specifications

None

 

Stage 2 Submission on or after August 1, 2018

17-20 09/05/17 Complex Bridge Design Requirements

None

 

Immediately

17-19 09/05/17 Next Level Signs

None

Signs Select Projects with Lettings on or after January 1, 2018
17-18 08/07/17 Use of Geotextile in Geotechnical Applications

None

 

Lettings on or after
September 1, 2017

17-17 08/07/17 Manual for Assessing Safety Hardware (MASH) and New
W-beam Guardrail and Guardrail End Treatment Standards

None

Pay Items Associated with MGS W-Beam Guardrail and Related Systems NHS Routes: Letting on or after January 1, 2018
Non-NHS Routes: Letting on or after July 1, 2018
17-16 08/07/17 Permanent Metal Forms

404-2.02, 404-2.03, Fig. 404-2B and 404-2C

Sections 404-2.02(02), 404-2.02(03), 404-2.03(02), Figures 404-2B and 404-2C

Lettings on or after
September 1, 2017

17-10 05/11/17 Manual for Assessing Safety Hardware (MASH) and New W-beam Guardrail and Guardrail End Treatment Standards

None

Midwest Guardrail System Assembly Figures, AASHTO/FHWA Joint Implementation Agreegement for MASH Memo

NHS Routes: Letting on or after January 1, 2018
Non-NHS Routes: Letting on or after July 1, 2018

17-04 03/16/17 Culvert Asset ID Number

None

Culvert Asset ID Numbering System Stage 3 on or after May 2017
17-03 03/01/17 Mechanically Stabilized Earth (MSE) Walls Sections 402-6.02(02), 409-2.04(02), 409-3.03, Figures 409-2G and 410-5(0)C (New) Sections 402-6.02(02), 409-2.04(02), 409-3.03, Figures 409-2G and 410-5(0)C (New) As Noted
17-02 02/02/17 Rural Interstate Shoulder Width

None

  Immediately
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
16-35 11/21/16 Undistributed Quantities

None

  Immediately
16-16 04/11/16 Quantities

Sections 17-1.05, 17-4.06, 17-4.09 thru 17-4.10(03), 17-5.09, 17-6.0, Figures 17-5G thru -5G(02), 17-4D, 17-5I, 17-5J

Section 17-1.05, Section 17-4.06, Sections 17-4.09 thru 17-4.10(03), Section 17-5.09, Section 17-6.0, Figures 17-5G thru -5G(02), 17-4D, 17-5I, 17-5J

As Noted
16-11 rev. 03/17/16
Rev. 09/12/16
Temporary Erosion and Sediment Control

None

PSE Checklist
Environmental Consultation Form
Contract Preperation Documents

Lettings on or after September 1, 2016
16-10 03/16/16 NEPA Compliance and Waterway Permitting for Bundled Projects None

INDOT Environmental Memo

Immediately
16-06 03/08/16 Portable Signals 83-5.0

Section 83-5.0

Letting on or after September 1, 2016
16-01 01/05/16 Structure Number in ERMS, SPMS, and on Plans None

Example

Immediately
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
15-11 05/01/15 Anchored Temporary Concrete Barrier None   Letting on or after May 1, 2015
15-08 04/07/15 Title Sheet Signatures for Local Public Agency (LPA) Projects None   Letting on or after August 5, 2015
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
14-10 07/01/14 Practical Design 40-8.01, 40-8.04(01), Chapter 53, 55-3.0, 55-4.01(03), Figures 40-8B, 53-1 through 53-9, 55-3A through 55-3H   Immediately
14-05 04/02/14 Policy and Procedure for Determination of Technical Infeasibility None Policy and Procedure for Determination of Technical Infeasibility Immediately
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
13-10 04/15/13 Roundabouts 51-12.0 Roundabout Design Checklist Immediately
13-09 04/12/13 Small Structure Replacement, Guardrail Runout Length Chapters 49 & 55 RDG Table 5-10(b) Preliminary Field Check on or after June 1, 2013 and as noted
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
12-21 10/05/12 Use of AASHTO LRFD Bridge Design Specifications 409-9.0   Stage 2 Submission on or after 12/21/12
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
11-12 07/08/11 Metric-Units Plans See Memo   Immediately
11-09 04/05/11 High-Tension Cable-Barrier System (CBS) 49-5.01(04) RSP 627-R-546
RPD 627-R-546d
Lettings on or after May 11, 2011
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
05-34 11/9/05 Concrete Railings & Moment Slabs at Mechanically Stabilized Earth (MSE) Wall Systems 49-4.01(05) 706-R-504 RSP & RPD 02/15/10
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
03-07 07/02/03 Policy for Context Sensitive Solution Unknown   Immediately
Memo Number Memo Date Subject Affected IDM Section Attachments Effective Date
01-14 12/10/01 Water Main & Sanitary Sewer Construction in Contracts Unknown   Immediately

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