Highway 156 Tolling Study

The total estimated cost to construct this project using the conventional delivery process was $365 million as of 2016, or $375 million under a tolling scenario.  $70 million had been secured or pledged for the project, including $18 million in FORA and TAMC impact fees.  Facing a $295 million funding gap, the Transportation Agency Board of Directors approved an in-depth evaluation of tolling as an option to deliver the project.

​The Level 2 Traffic and Revenue Study (Tolling Study) analyzes current and future traffic diversion, potential toll rates, toll discounts for local residents and business, and addresses other questions and concerns brought up by the Board and the public that were adopted by the Board of Directors as “Guiding Principles” for evaluating tolling. Toll collection would be done 100% electronically via a gantry system over the expressway, similar to Fastrak in the Bay area; booths for cash collection of tolls will not be provided.  A camera detection system would be used to collect tolls from users without Fastrak transponders.  A toll exemption for local residents and business in the Castroville-Prunedale area was factored into the modeling analysis and results in a 15% reduction in revenues. The revenue lost from providing a partial or full local discount would increase the funding shortfall amounts projected by the study.

The Tolling Study evaluates the project feasibility and financing structure over 50 years under two delivery options.  A Public Delivery option proposes that the Transportation Agency and/or Caltrans procure financing, manage design and construction, then operate and maintain the toll facility.   Under the Public-Private-Partnership (P3) Delivery option, the financing, design, construction, and ongoing operation and maintenance of the toll road would be managed by a private partner/concessionaire in accordance with terms negotiated under a concession agreement. It is worth noting that the Public-Private Partnership authorization in state law expired on January 1, 2017 and has yet to be renewed.

Both delivery options assume securing financing in the form of bonds and federal infrastructure loans to construct the project. The P3 option includes additional private equity in the financing package, assumes reduced project construction costs, and assumes a project delivery time period three years shorter than the Public Delivery option. The Tolling Study evaluates the feasibility of delivering the project based on the timing and availability of various fund sources under both options over a 50 year time horizon. In addition to the project delivery (design, right-of-way, build) costs of $375 million, the analysis assumes that the toll revenues will also be utilized to cover the cost of financing the bonds and loans, maintaining the new expressway, operating the toll facility over time, and reconstructing the facility when it reaches the end of its lifespan.

The Transportation Agency Board of Directors received the study at their December 6, 2017 meeting. The Board also took action to request Caltrans proceed with the supplemental EIR and directed Transportation Agency staff to continue to monitor options to fund and construct the full SR 156 improvement project and to proceed with constructing the Castroville Boulevard interchange as an initial segment of the full project.


State Route 156 Tolling Study Documents:

2017 SR156 Level 2 Traffic & Revenue Study_EXECUTIVE SUMMARY

SR156 Level 2 Traffic & Revenue Study

Additional Information
Level 1 Sketch Level 156 Toll Road Study and Appendices
How Electronic Tolling Works: Video from Washington State