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Design Memos

	Issue Date
Design Exception and Design Variance Process Guide	09/30/08
C-Standards New Edition	05/21/07
Design Exception and Design Variance Process Guide	01/16/07
Roadway Design Guidelines 2007 Update	01/02/07
Crash Cushion Selection Procedure	11/06/06
Guardrail To Bridge Barrier Transition Summary Form	11/02/06
Guardrail To Bridge Barrier Transition Summary Form (Excel Spreadsheet)	11/02/06
ADOT Hydraulics Manual	06/20/06
Construction Standard Drawings Update	04/18/06
Sidewalk Ramps	11/25/05
C-Standards Update	07/29/05
Standard 1A, 1B, 1C and 1D Sheets. Required for Final Plans Submittal	01/20/05
C-Standards Update	10/20/04
Guardrail & Slope Flattening Checklist	08/24/04
2 Ft Offset Distance To Roadside Barriers	08/18/05
ET-PLUS Guard Rail End Treatment - Modification to Breakaway End Posts	01/10/03
Crash Cushion Selection Procedure	10/31/02
Barrier Summary Sheets - Guard Rail End Treatments	06/27/02
Guard Rail-to-Bridge Rail Transitions (Amended Procedure Step 8 on 8/08/02)	06/25/02
SRT-350 (SRT-350 Guardrail End Treatment Modification to Breakaway End Post and Straight Flare)	05/06/02
Guardrail Minimum Height after Overlay on Pavement Preservation Projects	08/07/01
SKT350	06/04/99
Pavement Preservation Guidelines	03/30/99
FLEAT 350	10/06/98
Breakaway Cable Terminals (BCTs)	10/02/98
HDPE 42" & 48"	09/08/98
Safety End Sections	05/12/98
ADIEM 350 Crash Cushion	04/29/98
QuadGuard Wide & NEAT Attenuator	01/22/98
Climbing and Passing Lane Policy	12/23/97
SRT 350 First Issue	02/19/97
Low Speed Approach Barrier Trans.	08/28/96

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