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HELPFUL EPG VIDEOS: •Logging into the EPG •Finding Info in the EPG
•Article History & How to Receive EMails When Articles are Revised
Want help on how to update your EPG guidance?  It is available at EPG Approval Process.
The Electronic MoDOT Spec Book for Mobile Devices is now available. You may also sign up for E-Update notices. To receive notices regarding Engineering Policy Revisions, select "Engineering Policy" then mark the appropriate subjects of interest.

(L to R) Sr. Traffic Studies Specialist Jeff Baird, Proj. Manager Tom Montes, Area Engr. Karen Yeomans and Proj. Manager Jenn Becker prepare to talk to residents and business owners at a public hearing in Brentwood, MO about construction along Manchester Rd. between Lindbergh and Big Bend scheduled for 2020.
To construct the Perry County Rte. AC Connector Rd., much consideration went into preserving the grotto sculpin’s habitat. On almost 5 acres, MoDOT will use appropriately sized, rock-lined, flat-bottomed ditches, grass swales, sediment basins and silt fences for extra treatment of highway runoff. MoDOT also protected a sinkhole from future development. These water quality improvements are expected to enhance the habitat of this endangered species.

MoDOT has made great strides to build a good transportation system and increase taxpayers' trust in its ability to deliver what was promised. Innovative concepts, such as Practical Design and design-build, were used to deliver those commitments and have made MoDOT a leader in the transportation industry.

These forward-thinking, innovative concepts are reflected in the ENGINEERING POLICY GUIDE (EPG). This document provides a single reference for all engineering and engineering-related guidance by combining the former Right of Way, Design, Bridge, Construction, Traffic and Maintenance manuals.

MediaWiki, the engine behind the Wikipedia on the World Wide Web, is the software delivering the EPG. Over 40 million hits on the EPG endorse this format to be easy to navigate and pleasing to read. A small HELP ARTICLE is included to assist with helpful hints on how to use the EPG as well as other points of interest.

Perhaps you've wondered how many hits the most popular EPG articles have. As of late March, the numbers of hits are:
20. EPG 136 168990  10. EPG 751.5 236819
19. EPG 134 176877  9. EPG 616.23 273274
18. EPG 751.40 179210  8. EPG 600 274684
17. EPG 136.4 179399  7. EPG 100 324850
16. EPG 620.2 188881  6. EPG 700 340740
15. EPG 903 197209  5. EPG 900 359692
14. EPG 200 203739  4. EPG 101 384492
13. EPG 751.50 206211  3. EPG 136.12 389176
12. EPG 136.9 216719  2. EPG 751 455017
11. EPG 616 222095  1. EPG Main Page 3089721

EPG 751.2.2 Transient Loads

3/27/18: Wind pressure on vehicles, braking force and centrifugal force are assumed to act horizontally at the roadway surface, per AASHTO agenda.

Contract Leveling Course (CLC) and Seal Coat

3/27/18: The Contract Leveling Course and Seal Coat guidelines, pdf files, as well as their respective JSP packages were updated.

EPG File Naming Convention for Plan Sheet Changes

3/20/18: Guidance was updated for ProjectWise.

EPG 237.14 Electronic Design Data Delivery

3/16/18: EPG 237.14 has been completely rewritten and updated. Please carefully read and note the changes.

EPG 751.1.2.21 Substructure Type

3/9/18: Guidance for minimum galvanized penetration (elevation) was added for piles for retaining walls supported on piles and bridge end bents on piles with embankments supported by MSE walls.

TMA Light Bar

3/8/18: In EPG 612.1.3 MoDOT Protective Vehicle/TMA Guidelines, the TMA Light Bar is now temporarily optional and not required to be purchased for use. In EPG 616.8 Typical Applications, TA-35 MT and TAs 35a-35d MT were also updated with this information.

Tack Coat Estimate Factors

2/27/18: The tack coat estimate factors were updated in EPG 450 Bituminous Pavement Design.

EPG 146.2 DBE Subcontract

2/22/18: Clarified guidance regarding overruns and underruns as they relate to DBE participation.

DBE Concurrence and Executing Consultant Contracts

2/16/18: Guidance in EPG 134.2.4 MoDOT MOU Execution Process, EPG 134.4 Contract Approval, Execution and Distribution, EPG 134.5.2 Supplemental Agreements and EPG 153.8 Design now directs that DBE Concurrence must be requested prior to executing consultant contracts.

D-15 Material List

2/9/18: In 237.7 Equipment and Materials List, designers are now required to include the D-15 in the Electronic Deliverables.

EPG 616.6.89 Radar Speed Advisory Assembly

2/9/18: Expanded and updated guidance on the placement of the Radar Speed Advisory Assembly.

Revised Galvanized Pile Requirements

2/9/18: In EPG 702 Load-Bearing Piles, EPG 751.1.2 Bridges/Boxes, EPG 751.36 Driven Piles, EPG 751.50 E2, EPG 751.50 G, the revised galvanized pile requirements eliminate steel piling option AASHTO M 270, Gr 36 (ASTM A 709, Gr 36) and replace it with AASHTO M 270, Gr 50 (ASTM A709, Gr 50). 

Pipe Culverts

2/9/18: Guidance has been clarified and completely rewritten to be in accordance with pipe specifications. This includes the new articles EPG 724 Pipe Culverts and EPG 1041 Polypropylene Culvert Pipe and the re-titled EPG 730 Thermoplastic Pipe Culverts. EPG 732 Flared End Sections, EPG 750.7.2 Types, EPG 1028 Corrugated Polyvinyl Chloride Culvert Pipe and EPG 1047 Corrugated Polyethylene Culvert Pipe were also updated. EPG 728 Corrugated Polyvinyl Chloride Culvert Pipe was deleted since there is no longer a Sec 728.

Drainage relative to MSE Walls

2/9/18: Revised guidance in EPG 747.2.6.2 Mechanically Stabilized Earth (MSE) Wall Systems, EPG 751.1.2.18 Preliminary Cost Estimate, EPG 751.1.2.31 Design Exceptions, EPG 751.1.4.3 MSE Walls, EPG 751.10.3.1 Type, Alignment and Spacing , EPG 751.10.3.3 General Requirements for Location of Slab Drains, EPG 751.24.1.1 Wall Type Selection, EPG 751.24.2 Mechanically Stabilized Earth (MSE) Walls and EPG J1. General better defines where drainage/water can or cannot be discharged relative to the location of MSE walls and provides ways to divert the drainage/water in the design process.

Collars on Precast Concrete Box Culverts

2/9/18: Revisions in EPG 751.8.1.5 Precast Culvert, EPG 751.8.3.2 Steel Reinforcement and EPG 751.50 A2.8 address collars on precast concrete box culverts when cast-in-place box culverts are called for on the project. The revision also revises when/how geotextile fabric is used on precast joints. 

LED Luminaires

2/9/18: Guidance is now provided to allow the use of LED luminaires for roadway lighting in EPG 901.7 Light Source and Intensity, EPG 901.8 System Voltage, EPG 901.9 Layout, EPG 901.11, EPG 901.12 Electrical Components, EPG 901.13, EPG 901.14 Dusk-to-Dawn Lighting Policy, EPG 901.16 Construction Inspection Guidelines for Sec 901.

Request to Subcontract Work (Form C-220)

2/6/18: Guidance for a contractor to fill out Form C-220 was clarified in EPG 108.1.3 Disadvantaged Business Enterprises Subcontracting.

EPG Agreements Written By Other Entities

2/5/18: This new guidance addresses Agreements initiated by other entities that are not initiated in eAgreements. The agreement template is initiated by the other entity, executed by the Commission and then uploaded into eAgreements Record center.

EPG 129.12 Presentation for Location or Design Approval to the Commission

2/2/18: Clarified the requirements for location and design approval, which is required even if an LPA is administering and paying for the improvement.

EPG Other Aspects of Pavement Design, Minor Roads

2/2/18: Clarification about pavement thicknesses/types sometimes not included on typical sections.

EPG 616.6.89 Radar Speed Advisory Assembly

2/2/18: Expanded and updated guidance on the placement of the Radar Speed Advisory Assembly. Also slightly updated Work Zone Questions for the Core Team in EPG 616.14 Work Zone Safety and Mobility Policy.

Clear Zones for 1R and 2R Projects

2/1/18: In EPG 128.2 Preventive Maintenance Projects (1R and 2R) and EPG 231.2 Clear Zones, the guidance regarding clear zones and roadside hardware for 1R and 2R projects was condensed and clarified.

EPG 131.1.4 The Design Exception Process

1/26/18: Design Exceptions are to be stored electronically in eProjects after Central Office Design and/or Bridge divisions have reviewed and approved.

EPG, No-Pick-Up Time for Tack Coats

1/18/18: This new TM is now available.

Asphalt Cement Price Index Adjustments

1/18/18: "Guidance for Asphalt Cement Price Index Adjustments" has been updated to include info about contingent item work. The document is located in various articles including EPG 402.1.1 Plan Preparation and EPG 403 Asphaltic Concrete Pavement.