Expired tech memos
- To review active State Aid tech memos, go to State Aid tech memos
 - MnDOT Trunk Highway tech memos, go to MnDOT's active and historical tech memos
 
Number  | 
	      Subject  | 
	      Status  | 
	      Issue Date  | 
	      Expiration Date  | 
	      Notes  | 
        
| 23-SA-01 (PDF) | Dissolution of Supplemental Specifications to the MnDOT Standard Specifications for Construction, 2020 Edition | Expired | 7/17/2023 | Superseded by 25-SA-01 | |
| 22-SA-01 (PDF) | Supplemental Specifications to the MnDOT Standard Specifications for Construction, 2020 Edition | Expired | 09/30/2022 | 10/1/2023 | Superseded by 23-SA-01 | 
| 21-SA-02 (PDF) | Revision to the required Implementation of MnDOT Standard Specifications for Construction 2020 edition | Expired | 7/26/2021 | Superseded by 22-SA-01 | |
| 21-SA-01 (PDF) | Implementation of MnDOT Standard Specifications for Construction 2020 edition | Expired | 4/9/2021 | Superseded by 21-SA-02 | |
| 20-SA-01 (PDF) | Use of PavementDesigner.org software for design of concrete pavements for cities and counties | Expired | 11/5/2020 | Superseded by 24-SA-01 | |
| 17-SA-02 (PDF) | Implementation of MnDOT Standard Specifications for Construction, 2018 edition | Expired | 9/25/2017 | See Plant Mixed Asphalt Pavement – Design Guidelines (PDF) | |
| Specification 2360 - plant mixed asphalt pavement - design guidelines for local agencies | Expired  | 
	      2/2/2017  | 
	      See Plant Mixed Asphalt Pavement – Design Guidelines (PDF) | ||
| Specification 2360 - plant mixed asphalt pavement - design guidelines | Expired  | 
	      1/8/2016  | 
	      Superseded by 17-SA-01 | ||
| Geogrids (multiaxial) on CSAH and MSAS routes - general specification, granular equivalent and design guidelines | Expired  | 
	      12/16/2015  | 
	      12/20/2020  | 
	      See Geogrids and GE Guidelines (PDF) | |
| Implement of MnDOT Standard Specifications for Construction, 2016 edition | Expired  | 
	      7/1/2015  | 
	      Superseded by 17-SA-01 | ||
Implement of MnDOT Standard Specifications for Construction, 2014 edition  | 
	      Expired  | 
	      11/1/2013  | 
	      1/1/2015  | 
	      ||
Schedule of materials control - local government agency  | 
	      Expired  | 
	      1/18/2013  | 
	      1/18/2018  | 
	      ||
American Concrete Pavement Association StreetPave Software for design of concrete pavements for cities and counties  | 
	      Expired  | 
	      10/9/2012  | 
	      10/9/2017  | 
	      See State Aid Manual,5.4.II C.4 | |
Minnesota concrete flatwork specifications for local government agencies  | 
	      Expired  | 
	      2/21/2012  | 
	      6/21/2017  | 
	      ||
Schedule of Materials Control for low volume roads  | 
	      Expired  | 
	      2/17/2012  | 
	      Superseded by 13-SA-01  | 
        ||
Interim pavement design strength requirements (formerly 10-SA-04)  | 
	      Expired  | 
	      1/11/2011  | 
	      Was incorporated into the State Aid Manual, 5.4.II C.2  | 
        ||
GeoGrids (multiaxial)   general specification, granular equivalent and design guidelines  | 
	      Expired  | 
	      12/21/2010  | 
	      12/21/2015  | 
	      Superseded by 15-SA-02 | |
Specification 2360 - plant mixed asphalt pavement - design guidelines  | 
	      Expired  | 
	      8/9/2010  | 
	      8/9/2015  | 
	      ||
ADA requirements of the truncated domes/ detectable warning and installation of pedestrian curb ramps  | 
	      Expired  | 
	      2/24/2010  | 
	      Was incorporated into the State Aid Manual, 5.4.II.A.10 | ||
Alternative national pollutant discharge elimination system  process on DCP projects  | 
	      Expired  | 
	      1/25/2005  | 
	      See DCP checklist for current rules and requirements  | 
        ||
Expired  | 
	      1/14/2005  | 
	      ||||
Liquidated damages on federal aid projects  | 
	      Expired  | 
	      11/1/2004  | 
	      Was incorporated into Liquidated Damages and Monetary Deductions (PDF) | ||
Expired  | 
	      10/22/2004  | 
	      ||||
Hydraulic risk assessment form  | 
	      Expired  | 
	      9/20/2004  | 
	      See State Aid Manual Chapter 5.4 VII D.3b  | 
        ||
Road design manual vertical curve charts  | 
	      Expired  | 
	      4/30/2004  | 
	      |||
ADA requirements of the truncated domes/ detectable warning and installation of pedestrian curb ramps  | 
	      Expired  | 
	      3/2/2004  | 
	      Superseded by 10-SA-01  | 
        ||
DSAE approval of supplemental agreements and change orders  | 
	      Expired  | 
	      4/2/2003  | 
	      See State Aid Manual for supplemental agreement approval guidelines  | 
        ||
Acceptable culvert and storm sewer pipe materials  | 
	      Expired  | 
	      3/12/2003  | 
	      |||
Process for certification of materials on state aid and federal aid projects: certification exceptions 1 and certification exceptions 2
	        | 
	      Expired  | 
	      4/4/2002  | 
	      See State Aid Manual Chapters 5.6 III - Materials  | 
        ||
Eligible fill over bridge culverts  | 
	      Expired  | 
	      10/23/2001  | 
	      |||
Professional engineer's signatures  | 
	      Expired  | 
	      3/12/2001  | 
	      1/1/2005  | 
	      ||
Plan approval for staged grading and surfacing  | 
	      Expired  | 
	      5/3/2000  | 
	      |||
Materials certification on local federal projects  | 
	      Expired  | 
	      3/8/2000  | 
	      Superseded by 02-SA-01  | 
        ||
Low speed urban horizontal curve design tables  | 
	      Expired  | 
	      4/28/2000  | 
	      |||
Horizontal curve design tables State Aid Manual figs D(1,2 & 3) 5-892.211  | 
	      Expired  | 
	      4/28/2000  | 
	      
