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Useful information on how to search for info in the EPG: Searching the Engineering Policy Guide
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.


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. Millions of 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.

EPG Schedule for Submittal

11/7/18: Guidance has been added about a required e-mail for re-let or moved projects.

EPG 604, Construction Requirements (Sec 604.10.3)

10/30/18: When approached with alternative products on a job as part of a change order or VE, this new guidance states that the RE should initially determine suitability and also consult the Field Office and New Products Coordinator to ensure value, uniformity and tracking.

Placing Diaphragm Concrete

10/25/18: In EPG 703.2.8 Concrete Placement, this new presentation explains a MoDOT best practice.

EPG 626 Rumble Strips

10/23/18: Clarified the location of the rumbles strips and pavement markings for differing shoulder and pavement conditions. The minimum pavement thickness was revised from from 1 3/4" to 1".

EPG TM-7, Rebound Hammer for Opening Strength of Full Depth Concrete Pavement Repairs

10/23/18: This new test method corresponds to the spec change in Sec 613 that allows this alternate test method.

Prestressed Concrete I Girders

10/23/18: NU 78 details were placed back into EPG 751.22.1.2 Geometric Dimensions, EPG 751.22.3.9 Open Intermediate Bent Diaphragms and EPG 751.22.3.10 Closed Intermediate Bent Diaphragms. NU flange blockout guidance was also added and concrete diaphragm details were clarified.

Bending Diagrams

10/16/18: In EPG 751.12.2.3 End Bent Reinforcement, the bending diagrams were revised to accommodate safety barrier reinforcement. A reinforcing clearance note in H10a. Conventional-Formed Barrier standard notes was added to avoid possible confusion when placing barrier reinforcement at end bents.

EPG 751.50 Standard Detailing Notes

10/12/18: Notes J1.12b, J1.21b and J1.25A have been added. J1.25 was revised to clarify maximum applied bearing pressure limit.

EPG 127.14 National Environmental Policy Act (NEPA) Classification and Documents

10/11/18: This article has been extensively revised to reflect current procedures.

EPG TM-88 Bond Strength Test for Tack Coat

10/10/18: This new Test Method is now available.

EPG 771.1 Concrete Bridge Approach Slab Repair: Slab Stabilization (Jacking)

10/10/18: This article has been re-titled. Also, the requirement for the formed underseal access hole for the concrete bridge approach slabs has been eliminated.

EPG 110.3 Equipment Rental with Operator and Purchase Ordered Work

9/25/18: Guidance about which certified payrolls are required for rental equipment operators was clarified.

Bridge Survey Checklist

9/24/18: Guidance about the Bridge Survey Checklist was clarified in EPG 238.3.36 Bridge Surveys, EPG 747.2.2.1 Bridge Survey Report, EPG 747.2.3 Bridge Survey Sheet Data, EPG 747.2.3.4 Profile Sheets and EPG 750. Other Bridges.

EPG Submittal

9/20/18: Additional guidance is now available for district staff on when to include a Change in Route Marking Report.

EPG Marketing Properties for Lease

9/20/18: Guidance has been added to permit a new clause in the lease.

Saw Cut Joints

8/31/18: Guidance in EPG 751.12.2.7 Joint Details, EPG 751.12.2.8 Plastic Waterstop and EPG H10. Barrier Curbs – Safety, Median, Type C and D was revised to allow saw cut joints for conventional-formed barrier curbs.

EPG Advance Acquisition, State Funded Early Acquisition

8/27/17: Guidelines related to MAP-21 have been provided to bring guidance up to current practice.

EPG 106.9, When does Buy America apply to manufactured items?

8/16/18: Guidance has been added to EPG 106.9 Buy America Requirement clarifying when Buy America applies to manufactured items.

EPG 231.2 Clear Zones

8/14/18: Clear zone guidance has been clarified and associated figures have been updated.

LFD Bridge Seismic Design Process Flowchart

8/14/18: In EPG 756 Seismic Design, updated this flowchart to include, among other changes, new superstructure replacement guidance.

EPG 231.8 Bridge Width

8/13/18: EPG 231.8 is now coordinated with Green Book guidance that clear bridge widths shall be the same as the approach roadway widths for collectors, arterials and freeways.

EPG 806 Pollution, Erosion and Sediment Control

8/7/18: All of EPG 806 (except for EPG 806.8 SWPPP) has been completely rewritten to clarify land disturbance requirements and policies necessary to comply with MoDOT's current land disturbance practices.

Impact Attenuators and Sand Barrel Arrays

8/7/18: Sand barrel impact attenuator setup will now be based on the manufacturer's recommendations instead of MoDOT's standard plans. Work zone durations have been revised. New guidance clarifies when the flashing arrow panel and lights on the TMA should be active.

Work Zone Duration and TA-35 Mobile Operation

8/7/18: Guidance was clarified in EPG 616.7.2 Work Duration and EPG 616. Duration of Work about which traffic control devices are needed based on the work duration. TA-35 was updated to include an additional TMA with added guidance for which operations TA-35 can be used.

EPG 123.1.1 FHWA Oversight - National Highway System

7/27/18: Information for Projects of Division Interest (PoDI) has been updated for FY19.