California Department of Transportation
 

Highway Design Manual


New Reaffirming our commitment to providing flexibility while maintaining the safety and integrity of the state highway system and local streets and roads under the jurisdiction of cities and counties, the Department is reaffirming the flexibility provided in existing Caltrans guidance, highlighting the positive steps already taken in underscoring the importance of multimodal design, and recognizes the value of other guidance in supporting planning and design decisions made by state and local decision makers statewide. For more information on this topic please refer to the memorandum titled "Design Flexibility in Multimodal Design" dated April 10, 2014.

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The latest English Version of the Highway Design Manual (HDM) is available on-line below in two formats.

The first format available is a .pdf file of the complete manual which will allow you to perform word searches of the complete manual and/or allow you to download or print the complete HDM cover to cover all at one time. This file is very large and may take some time to download.

A second format that is available below, in both Metric and English Versions, is the traditional chapter by chapter format. This format is easier to download and/or print. However, the traditional versions only allow for chapter by chapter word searches.

Please note, implementation of the current version of the 6th Edition HDM available below shall be applied to on-going projects in accordance with HDM Index 82.5, except that through December 31, 2012, the Regional/District Deputy Director of Design was delegated the authority to make the final determination on whether to apply these latest design standards or continue to use the HDM Previous to Change Dated 05/07/12 on a project-by-project basis for all projects where the PS&E has not been finalized. If the decision was not to apply the current standards, then the HDM Previous to Change Dated 05/07/12 is to be used in its entirety, with documentation in the project files addressing the significant delay in the project schedule and/or the significant increase in the project engineering or construction costs.

No matter which of the formats is used to download and/or print, if the HDM Holder chooses to do so, the Holder is responsible for keeping their electronic and/or paper copy up to date and current. For this reason, HDM Holders are encouraged to use the on-line versions of the HDM for the most current design guidance.

The HDM is available for purchase through the Caltrans Publication Unit . If this option is chosen, the HDM Holder and not the Publications Unit is responsible for obtaining and inserting all of the change-sheets that are available on the Department Design website.

Design Information Bulletins (DIB's) and Design Memos may supercede this Manual

Manual Change Transmittals and Erratas

Bikeway Research, Experimentation, Testing, Evaluation, or Verification Related to Design Criteria

Other Useful Links


Highway Design Manual
Table of Contents

       

new!

   

Metric Version

 

English Version

PDF
version

Last
Updated

 

PDF
version

Last
Updated

Foreword

fwd.pdf

07-01-08

 

fwd.pdf

05-07-12

Contents

Expanded Table of Contents

toc.pdf

07-01-08

 

toc.pdf

03-07-14

Chapter 10

Division of Design

chp0010.pdf

06-26-06

 

chp0010.pdf

05-07-12

Chapter 20

Designation of Highway Routes

chp0020.pdf

07-01-04

 

chp0020.pdf

05-07-12

Chapter 40

Federal-Aid

chp0040.pdf

07-01-95

 

chp0040.pdf

05-07-12

Chapter 60

Nomenclature

chp0060.pdf

07-01-08

 

chp0060.pdf

03-07-14

Chapter 80

Application of Design Standards

chp0080.pdf

07-01-08

 

chp0080.pdf

03-07-14

Chapter 100

Basic Design Policies

chp0100.pdf

07-01-08

 

chp0100.pdf

06-21-13

Chapter 200

Geometric Design and Structure Standards

chp0200.pdf

06-26-06

 

chp0200.pdf

03-07-14

Chapter 300

Geometric Cross Section

chp0300.pdf

06-26-06

 

chp0300.pdf

11-02-12

Chapter 400

Intersections At Grade

chp0400.pdf

07-01-08

 

chp0400.pdf

03-07-14

Chapter 500

Traffic Interchanges

chp0500.pdf

06-26-06

 

chp0500.pdf

03-07-14

Chapter 600

Pavement Engineering

chp0600.pdf

07-01-08

 

chp0600.pdf

11-02-12

Chapter 610

Pavement Engineering Considerations

chp0610.pdf

07-01-08

 

chp0610.pdf

11-02-12

Chapter 620

Rigid Pavement

chp0620.pdf

07-01-08

 

chp0620.pdf

11-02-12

Chapter 630

Flexible Pavement

chp0630.pdf

07-01-08

 

chp0630.pdf

05-07-12

Chapter 640

Composite Pavements

chp0640.pdf

07-01-08

 

chp0640.pdf

05-07-12

Chapter 650

Pavement Drainage

chp0650.pdf

06-26-06

 

chp0650.pdf

09-01-06

Chapter 660

Base and Subbase

chp0660.pdf

07-01-08

 

chp0660.pdf

05-07-12

Chapter 670

Structure Approach Slabs

chp0670.pdf

06-26-06

 

chp0670.pdf

05-07-12

Chapter 700

Miscellaneous Standards

chp0700.pdf

06-26-06

 

chp0700.pdf

06-21-13

Chapter 800

General Aspects

chp0800.pdf

07-01-08

 

chp0800.pdf

03-07-14

Chapter 810

Hydrology

chp0810.pdf

07-01-08

 

chp0810.pdf

03-07-14

Chapter 820

Cross Drainage

chp0820.pdf

06-26-06

 

chp0820.pdf

05-07-12

Chapter 830

Transportation Facility Drainage

chp0830.pdf

06-26-06

 

chp0830.pdf

03-07-14

Chapter 840

Subsurface Drainage

chp0840.pdf

06-26-06

 

chp0840.pdf

10-04-10

Chapter 850

Physical Standards

chp0850.pdf

07-01-08

 

chp0850.pdf

03-07-14

Chapter 860

Open Channels

chp0860.pdf

06-26-06

 

chp0860.pdf

03-07-14

Chapter 870

Channel and Shore Protection - Erosion Control

chp0870.pdf

07-01-08

 

chp0870.pdf

03-07-14

Chapter 880

Underground Disposal

chp0880.pdf

07-01-95

 

chp0880.pdf

08-01-11

Chapter 890

Storm Water Management

chp0890.pdf

05-01-01

 

chp0890.pdf

09-01-06

Chapter 900

Landscape Architecture

chp0900.pdf

06-26-06

 

chp0900.pdf

05-07-12

Chapter 1000

Bicycle Transportation Design

chp1000.pdf

06-26-06

 

chp1000.pdf

03-07-14

Chapter 1100

Highway Traffic Noise Abatement

chp1100.pdf

06-26-06

 

chp1100.pdf

05-07-12

Index

index.pdf

07-01-08

 

index.pdf

03-07-14

If you have any questions about the Highway Design Manual send e-mail to: Antonette Clark (antonette.clark@dot.ca.gov).

This page last update April 11, 2014