FY 2021-2025 Five-Year Report
December 9, 2025
Prepared for: County of Sacramento Board of Supervisors
Prepared by: County of Sacramento Department of Transportation
SCTDF Five-Year Report Fiscal Years 2020/21- 2024/25
A. Identify the purpose to which the fee is to be put
The purpose of the Sacramento County Transportation Development Fee (SCTDF) Program is to help fund improvements to the County’s major roadway, bicycle and pedestrian facilities that are identified in the 2019 Update SCTDF/TIF Program Nexus Study (“2019 SCTDF/TIF Program”) as necessary to accommodate travel demand generated by new land development in the unincorporated portion of Sacramento County through 2050. The fee ensures that new development contributes their fair share to fund improvements to existing transportation facilities that are needed to mitigate the impact of increased growth.
In April 2019, the SCTDF Program had a major nexus update including the addition of a “Transit Impact Fee” (TIF) for specific Sacramento Regional Transit (SacRT) transit projects also triggered by future development impacts. Therefore, the SCTDF was renamed to the SCTDF/TIF. The County began collection of the TIF on June 22, 2019, on behalf of SacRT. The TIF is kept in its own account and dispersed to SacRT twice a year for use towards their SCTDF/TIF transit projects, as such the SCTDF and the TIF have their own separate annual and Five-Year reports.
B. Demonstrate a reasonable relationship between the fee and the purpose for which it is charged
The SCTDF roadway capacity improvements identified in the 2019 SCTDF/TIF program are intended to meet new travel demand associated with 2050 development forecasts in the unincorporated portion of Sacramento County prepared by the Sacramento Council of Governments (SACOG).
This projected growth in housing and employment will increase travel demand throughout the unincorporated County and thereby require infrastructure improvements for all travel modes to sustain an acceptable level of service (LOS) in accordance with the County’s General Plan and applicable County policies. The total amount of the SCTDF (non-TIF) transportation improvements that would be funded through the SCTDF/TIF Program is about $2.84 billion.
For roadways and intersections that currently operate at LOS E or better conditions, the entire cost of the capacity improvements (minus funding from other sources) are allocated to the SCTDF Program. For existing deficiencies (roadways that currently operate at LOS F), the cost of the improvement that is allocated to the SCTDF Program is equal to the percentage of the total change in volume/capacity (v/c) ratio due to the improvement that is needed to return the v/c ratio to current levels.
For each of the roadway improvement projects, the estimated percentage of new vehicle trips by fee district that would use those roadways determines each district’s cost responsibility for the improvements. The percentage use of new vehicle trips on roadways operating at LOS F was used to allocate the cost responsibility of transit, Intelligent Transportation Systems (ITS) improvements, and walkway and bikeway improvements along those congested roadways. This analysis establishes a proportionate relationship between the cost responsibility of each fee district for roadway improvements and the travel demand generated by that district.
In the allocation of costs to various types of developments, each development type is assigned a “dwelling unit equivalent” or “DUE” rate, which measures how the trip-making characteristics of a land use compare to a single-family residential unit. The cost responsibility for each fee district was divided by the dwelling unit equivalents (DUEs) in that district to determine the cost per DUE. This analysis identifies each DUEs fair share financial contribution to cover the costs of the needed improvements.
The County has development fee programs in several “special financing districts” to fund major infrastructure within or near those districts including roadway improvements. Some of the roadway capacity improvements that are funded by the special financing districts are also included in the SCTDF/TIF Program Update. The cost responsibility for each special financing district was reduced in the SCTDF/TIF by the amount that is funded by that district to eliminate any overlap between the fee programs.
The total cost responsibility for each fee district was divided by the dwelling unit equivalents (DUEs) in that district. The SCTDF fee for each fee district, special financing district, and fees for Affordable Housing are provided in SCTDF/TIF Annual Report, Fiscal Year (2024-25), Exhibit B, Pages 10-12. The methodology illustrates the reasonable relationship between the SCTDF fee and the purpose for which it is charged.
C. Identify all sources and amounts of funding anticipated to complete financing in incomplete improvements identified in the SCTDF Program
The SCTDF roadway related projects (non-transit) in the 2019 SCTDF/TIF were determined from a 30-year nexus impact study through 2050, to identify transportation infrastructure needs triggered by these new development impacts. The projected roadway impacts will require $2,844,421,583 in SCTDF project funding to mitigate (see table below).