Office of Project Support

Share via:

The Office of Project Support is made up of various Division of Design functions, including Cost Estimating, Route Matters and Freeway Agreements, and Resolutions of Necessity, which culls guidance from numerous sources including Design Information Bulletins (DIBs), the Highway Design Manual (HDM), and the Project Development Procedures Manual (PDPM).

Cost Estimating Improvements

The Cost Estimating program is a collection of policy, tools, guidance, training, best practices and lessons learned being made available to assist in the development of cost estimates that are complete and accurate, reflecting the true scope of work to be performed and reflecting current market trends.

Encroachments and Utilities


Authority for Caltrans to control encroachments within the State highway is contained in the Streets and Highways Code starting with Section 660.


Caltrans has adopted AASHTO’s October 2005 publications, "Policy on the Accommodation of Utilities Within Freeway Rights-of-Way," and "A Guide for Accommodating Utilities Within Highway Rights-of-Way."

Caltrans’ general policy is to allow utility facilities within conventional rights of way subject to reasonable conditions to provide for the safety of the traveling public and to permit the improvement of the highway.

Caltrans’ policy with regard to freeways and expressways is to exclude utility facilities from within access controlled rights of way, to the extent practicable. It recognizes that freeway rights of way are a valuable commodity, and that such value to the traveling public could be seriously eroded by allowing uncontrolled access by utility facilities. The policy is intended to provide a safe environment for traffic operations, minimize the disruption to the traveling public, and assure the safety of utility employees during maintenance of their facilities.

Route Matters and Freeway Agreements

The Caltrans Route Matters policy, which includes route adoptions, transfer of highway locations, redesignations, rescissions, relinquishments, and access control modifications is presented below. Caltrans' Freeway Agreement policy, which also applies to Controlled Access Highway Agreements is also presented below. Sample Route Matter and Freeway Agreement exhibits can be found in the Plans Preparation Manual (PPM).

Please forward any questions/comments/suggestions to