Engineering Directives

The SCDOT Deputy Secretary for Engineering sets engineering policy and direction, which requires compliance by the appropriate engineering divisions and all other providers of service to the Engineering Division, such as consultants and contractors. The Deputy Secretary for Engineering issues engineering directives containing the procedures for carrying out engineering policy. Engineering directives are reviewed annually.

If you have questions about engineering directives, please call the Office of the Deputy Secretary for Engineering at (803)737-7900 or fill out the ED Help Form.

An Index of the Engineering Directives (PDF 26 Kb), as well as all engineering directives are provided in Adobe Reader Format.

ED#	Original Issue Date	Latest Revision Date	Title
0	11/21/2003	08/13/2025	Engineering Directives Index
1	11/21/2003	01/13/2017	Development of SCDOT Engineering Directives
2	11/21/2003	07/29/2011	Fiscal and Maintenance Responsibilities for Traffic Signal Installations on the State Highway System
3	11/21/2003	04/13/2015	Semi-Annual Work Zone Traffic Control Reviews
4	11/21/2003	04/14/2015	Reflective Sheeting for Rigid Highway Signs
5	11/21/2003	05/17/2011	Delineators on Interstates and Freeways
6	11/21/2003	04/29/2011	Changes to Stop Control
7	11/21/2003	08/22/2007	Guidelines for Scenic Byway Sign Placement
8	11/21/2003	12/06/2024	Road Inspections
9	11/21/2003	None	Removal of Signs from SCDOT Right-of-Way
10	11/21/2003	12/13/2006	Disposal of Surplus Soil or Earth-Type Materials from Regrading High Shoulders, Cleaning Roadway Ditches, and Slopes
11	11/21/2003	08/14/2019	Procedures for Posting or Changing Weight Limits on Bridges
12	11/21/2003	None	Equipment Disposal
13	11/21/2003	06/20/2023	CANCELLED 6/20/2023 - Maintenance Bridge Replacement Projects
14	11/21/2003	06/18/2008	Procedure for Reporting Road Closings/Openings and Road Conditions Due to Construction, Infrastructure Failure, or Inclement Weather
15	12/08/2003	06/06/2018	Pavement Type Selection Process
16	11/21/2003	12/06/2024	Driveway Entrances
17	04/25/2005	08/20/2021	ON HOLD 8/20/2021 - Encroachment Permits
18	04/30/2004	05/03/2021	Bridge Security and the Release of Plans and Information
19	11/21/2003	03/22/2011	Manual on Uniform Traffic Control Devices (MUTCD), 2009 Edition
20	05/16/2005	None	FHWA/State Cooperative Agreement Covering Forest Highways
21	02/19/2007	12/17/2008	The Permanent Closing of Department Facilities
22	07/10/2004	02/12/2021	Bicycling Accommodations on Resurfacing Projects
23	06/03/2005	04/10/2015	Standards for Stormwater Management and Sediment Reduction
24	06/02/2005	03/17/2014	Selection of Drainage Pipe
25	04/18/2005	04/24/2008	Specific Service (Logo) Signing Bid Procedures
26	06/29/2005	None	Dams/Water Impoundments Adjacent to Highways
27	11/01/2005	None	Drainage Outfalls
28	01/09/2006	07/27/2009	Road Closures for Parades, Festivals, or Other Events
29	12/03/2006	10/25/2013	Vegetation Management on State Highways
30	01/09/2006	04/18/2011	Borrow Pit Location and Monitoring
31	07/10/2007	04/29/2011	Procedure for Reviewing Requests for "School Bus Stop Ahead" (S3-1) Signs
32	02/24/2006	07/16/2024	Hourly Restrictions for Lane Closures on Interstate and High Traffic Routes
33	02/26/2007	None	SCDOT Mast Arm Standards
34	09/12/2007	06/23/2016	Value Engineering Studies
35	10/08/2007	06/12/2013	Emergency Procurement of Construction and Consultant Services
36	02/01/2008	06/04/2008	Public Notification of Bridge Replacement Projects
37	09/04/2007	None	Standards for Sealing Engineering Documents
38	04/07/2008	None	Architect-Engineer Plan Errors and Omissions
39	01/22/2008	02/08/2010	Environmental Training
40	06/02/2008	10/31/2023	Acknowledgement Signs
41	09/15/2008	06/27/2019	Removal of Roads or Sections of Roads from the State Highway System
42	06/09/2008	12/11/2020	Inspection and Maintenance of Guardrail, Cable Barrier, and Crash Attenuators
43	06/19/2008	None	Bridge Ices Before Road Warning Signs (W8-13)
44	02/18/2009	02/07/2011	Procedures for Removing Closed Bridges from the State System
45	11/10/2008	None	Cellular Telephone Usage
46	01/20/2009	08/13/2025	Cancelled 8/13/2025 Satellite Telephone Management, Testing, and Reporting
47	07/27/2009	07/11/2014	Local Public Agency Project Administration
48	08/09/2010	05/08/2020	CANCELLED 5/8/2020 - Participation in Local Drainage Projects
49	04/19/2011	06/06/2023	Use of Statewide ITS System Message Boards
50	01/13/2009	01/13/2017	CANCELLED 1/13/2017 - Non-Interstate Road Resurfacing Project Selection Process
51	01/12/2009	03/10/2017	CANCELLED 3/10/2017 - Bridge Replacement Project Selection Process
52	01/13/2009	None	Interstate Rehabilitation Project Selection Process
53	07/15/2011	04/15/2025	Installation of Rumble Strips
54	01/13/2009	04/13/2017	CANCELLED 4/13/2017 - Safety Project Selection Process
55	09/09/2011	06/27/2023	Procurement and Administration of Federally Funded Research
56	01/14/2009	10/31/2017	ON HOLD 10/31/2017 - Interstate Mainline Capacity and Interchange Project Selection Process
57	10/31/2012	05/08/2023	Maintaining Traffic Sign Retroreflectivity
58	01/01/2015	12/10/2015	Right of Way Certification
59	06/11/2025	None	Establishment of a Residential Visual Buffer to Mitigate Daylighting of Residential Property
60	01/14/2009	10/31/2017	INACTIVE 10/31/2017 - COG and MPO Project Ranking Process
61	01/14/2009	10/31/2017	INACTIVE 10/31/2017 - Congestion Management/Air Quality (CMAQ) Project Selection Process
62	01/13/2017	06/17/2019	CANCELLED 6/17/2019 - Non-Interstate NHS Pavement Improvement Project Prioritization Process
63	01/13/2017	12/06/2024	Primary Pavement Improvement Project Prioritization Process
64	01/13/2017	12/06/2024	Federal-Aid Secondary Pavement Improvement Project Prioritization Process
65	01/13/2017	12/06/2024	Non-Federal Aid Secondary Pavement Improvement Project Prioritization Process
68	03/10/2017	11/22/201	CANCELLED 11/22/2021 - NHS Bridge Replacement Project Prioritization Process
69	03/10/2017	11/22/2021	CANCELLED 11/22/2021 - Non-NHS Bridge Replacement Project Prioritization Process
70	03/17/2017	11/22/2021	CANCELLED 11/22/2021 - Load Restricted Bridge Replacement Project Prioritization Process
71	04/13/2017	10/01/2019	Intersection Safety Project Prioritization Process
72	06/14/2017	None	Rural Road Safety Project Prioritization Process for Non-Interstate Routes
73	07/25/2018	None	Interstate Safety Project Prioritization Process
74	07/25/2018	None	Road Safety Assessment Project Prioritization Process
75	11/16/2021	None	Vulnerable Road User Safety Project Prioritization Process
77	10/18/2019	01/17/2023	Rural Interstate Freight Network Mobility Improvement Project Prioritization Process
78	03/01/2019	None	Business Rules for District Traffic Signal Shop Operations
79	07/12/2023	None	Patented and Proprietary Products
80	11/22/2021	07/05/2024	Bridge Project Prioritization Process for Interstates, Primary Routes
81	11/22/2021	07/05/2024	Bridge Project Prioritization Process for Secondary Routes
82	01/25/2024	None	Transportation Systems Management and Operations Program