Enter Highway Number(s)
You can also call 1-800-427-7623 for current highway conditions.
ADA Access Service Request
Caltrans Vehicle Misuse and/or Caltrans Driver Issues
Public Records Act (PRA) Requests
Traffic or Work Zone Concerns
Independent Office of Audits and Investigations
Business & Economic Opportunity
Procurement and Contracts
Research Innovation and System Information
Right of Way and Land Surveys
Be Work Zone Alert:
new Safety campaign
Caltrans' New Website to Launch - July 1, 2019
Caltrans is committed to enhanced digital accessibility.
Learn more about our new website at
REBUILDING CALIFORNIA - Senate Bill 1
Senate Bill 1, the Road Repair and Accountability Act
of 2017 invests $54 billion over the next decade
to fix roads, freeways and bridges.
See where the money is going at www.rebuildingca.ca.gov.
Rating Highway Conditions
Disastrous Fire Season
State Rail Revival
SB 1 Opportunities for Small and Diverse Businesses
Under SB 1, Caltrans will be increasing its outreach and training efforts
aimed at helping small businesses make connections and learn
how to navigate contracting with the State.
Following Caltrans manuals helps ensure that projects comply with Federal, State, and local requirements.
Landscape Architects use a wide range of Caltrans manuals to create projects that comply with State and Federal regulations. The list of manuals below provides links to sections of Caltrans manuals most commonly used by Landscape Architects. Click the blue text in the listings below to be directed to a web page with the information that you are looking for.
Did you know that you can sign-up to be notified of updates to Caltrans Manuals? Click here to sign-up to be notified.
Select a manual to jump to that section below:
The Project Development Procedures Manual (PDPM) addresses policies and procedures, roles and responsibilities, transportation planning, and procedural standards and guidelines applicable to the project development process from project initiation through construction. For an excellent and quick view of the entire project development process, see How Caltrans Builds Projects. Then consider taking the online course, Introduction to the Project Development Process.
The policies and procedures that guide landscape architects in their responsibilities through the project development process are primarily found in Chapter 29 (PDF) , “Landscape Architecture”. Provided are definitions, general policies, roles and responsibilities, the project development process, and policies and procedures on topics such as highway planting, safety roadside rest areas, vista points, aesthetics, transportation art, community identification, and gateway monuments.
Below are Chapters, and Topics in which Landscape Architects are typically involved.
The Highway Design Manual (HDM) establishes uniform design standards to accomplish Caltrans’ highway design function. It is Caltrans’ main source of guidance on highway design.
The most relevant chapter to the landscape architect is Chapter 900 (PDF) “Landscape Architecture”, but there are several additional chapters that provide relevant information. Below are HDM Chapters, Topics and Indexes in which Landscape Architects are typically involved include
The Storm Water Project Planning and Design Guide (PPDG) describes the process for Caltrans staff to incorporate the BMPs from the SWMP into the planning and design phases of a project.
The Standard Environmental Reference (SER) is an on-line resource to help state and local agency staff plan, prepare, submit, and evaluate environmental documents for transportation projects.