REPORT/RECOMMENDATION TO THE BOARD OF SUPERVISORS
OF SAN BERNARDINO COUNTY
AND RECORD OF ACTION
April 7, 2026
FROM
NOEL CASTILLO, Director, Department of Public Works - Transportation
SUBJECT
Title
Amendment to Cooperative Agreement with San Bernardino County Transportation Authority for the Cedar Avenue at Interstate 10 Interchange Project in the Bloomington Area
End
RECOMMENDATION(S)
Recommendation
Approve Amendment No. 2 to Cooperative Agreement No. 18-865 (Funding Agreement 18-1001962) with the San Bernardino County Transportation Authority for Right-of-Way and Construction of the Cedar Avenue at Interstate 10 Interchange Project in the Bloomington area, to adjust the parties funding responsibilities based on the revised project costs, increasing the total project cost by $20,504,000, from $113,393,000 to $133,897,000, update the project milestone dates and extend the term by five years, for a new term of January 9, 2019 to December 31, 2033.
(Presenter: David Doublet, Assistant Director, 386-8811)
Body
COUNTY AND CHIEF EXECUTIVE OFFICER GOALS & OBJECTIVES
Promote and Fulfill the Countywide Vision.
Foster Sustainable Development Through Strategic Partnerships.
FINANCIAL IMPACT
Approval of this item will not result in the use of additional Discretionary General Funding (Net County Cost). The Cedar Avenue at Interstate 10 (I-10) Interchange Project in the Bloomington area (Project) estimated total cost increased by $20,504,000. In accordance with the San Bernardino County Transportation Authority (SBCTA) Measure I 2010-2040 Expenditure Plan and Nexus Study, SBCTA’s Public Share of the increase will be $10,782,800, the Project will receive $5,000,000 from the Section 190 Grade Separation Program, and the remaining $4,721,200 will be the Local Agency Share (Developer Share).
The Developer Share will be divided between the County, the City of Rialto (Rialto), and the City of Fontana (Fontana) (collectively, Cities), based on the specified percentage shares outlined in the Nexus Study: County (68.6%), Rialto (19.5%), and Fontana (11.9%). As such, the County’s share will increase by $3,238,800, Rialto’s share by $920,600, and Fontana’s share by $561,800. The Department of Public Works (Department) intends to return to the Board with amendments to the Cities’ contribution agreements in connection with these increased costs.
The Developer Share for the new total project cost will be $40,169,100 divided between the County ($27,556,000), Rialto ($7,832,975) and Fontana ($4,780,125) based on the specified percentage shares outlined in the Nexus Study.
To secure the remaining funding for the Project’s Developer Share, the Department intends to return to the Board on May 19, 2026, to seek approval of a no-interest term loan from SBCTA. On April 1, 2026, the SBCTA Board of Directors approved an amendment to the SBCTA Measure 2010-2040 Strategic Plan Policy 40005 - Valley Freeway Interchange Program funds to allow for loans from Valley Freeway Interchange Program funds for the required Developer Share of project costs for the top 10 interchanges in the most current interchange prioritization list established by the SBCTA Board of Directors. The Project is the top-ranked interchange in the prioritization list.
The estimated revised total Project cost is summarized as follows:
|
Phase |
Original Amount |
Amendment 1 Amount |
Amendment 2 Amount |
Change |
|
Project Approval and Environmental Document |
$1,366,000 |
$1,366,000 |
$1,366,000 |
$0 |
|
Plans, Specifications, and Estimate |
$7,475,000 |
$8,727,000 |
$8,727,000 |
$0 |
|
Right of Way |
$2,200,000 |
$7,000,000 |
$8,120,000 |
$1,120,000 |
|
Construction |
$100,526,000 |
$95,700,000 |
$114,984,000 |
$19,284,000 |
|
Project Management |
$500,000 |
$600,000 |
$700,000 |
$100,000 |
|
Total Project Cost |
$112,067,000 |
$113,393,000 |
$133,897,000 |
$20,504,000 |
BACKGROUND INFORMATION
Approval of this item will approve Amendment No. 2 to Cooperative Agreement No. 18-865 with SBCTA. The amendment to the agreement is needed due to the limited construction windows granted by the Union Pacific Railroad for demolition and construction of the Cedar Avenue Railroad Overhead bridge. As a result, the Project requires additional right-of-way services, construction management services and Project Management due to the extended schedule and increased coordination associated with the limited construction windows. Construction costs, including contract change orders, are also projected to increase because of this delay.
This amendment will also extend the termination date by five years to December 31, 2033, to allow for construction completion as a result of the limited construction window. It also allows plant establishment for replacement landscape planting, and to close out the Project. SBCTA will continue to serve as the lead agency for the Project. SBCTA approved Amendment No. 2 to Cooperative Agreement No. 18-865 on March 4, 2026.
On July 8, 2014 (Item No. 44), the Board of Supervisors (Board) approved Cooperative Agreement No. 14-603 (Caltrans Agreement No. 08-1589) with the State of California Department of Transportation (Caltrans), authorizing Caltrans to provide design services for the Project at an estimated cost of $4,000,000. The Project consists of improvements to the interchange at Cedar Avenue and I-10, between Slover Avenue and Bloomington Avenue. The improvements include (1) widening Cedar Avenue from Bloomington Avenue to Orange Street; (2) adding turn lanes; (3) widening the Interstate Overcrossing; (4) replacing the Union Pacific Railroad (UPRR)/Cedar Avenue Overhead; and (5) modifying existing ramps.
On January 23, 2018 (Item No. 39), the Board approved Cooperative Agreement No. 18-32 (Funding Agreement No. 17-1001710) with SBCTA for reimbursement of eligible Project Approval and Environment Document, Plans, Specifications and Estimate (PS&E), and Project Management Services costs.
On December 4, 2018 (Item No. 55), the Board approved Cooperative Agreement No. 18-865 (Funding Agreement No. 18-1001962) with SBCTA for the Project’s right-of-way and construction phases. The estimated total Project cost was $112,067,000, with an original term of January 9, 2019 to December 31,2023. SBCTA agreed to serve as the lead agency for these two phases of the Project, and the County’s Real Estate Services Department agreed to assist SBCTA with right-of-way services as needed.
On December 18, 2018 (Item No. 49), the Board approved Amendment No. 1 to Cooperative Agreement No. 18-32 (Funding Agreement No. 17-1001710), revising the role of County and SBCTA for the utility potholing and coordination work, with no change to the Project cost or agreement term.
On September 24, 2019 (Item No. 34), the Board approved Amendment No. 1 to Cooperative Agreement No. 14-603 (Caltrans Agreement No. 08-1589), with Caltrans increasing the estimated Project design cost by $2,300,000, from $4,000,000 to $6,300,000.
On September 15, 2020 (Item No. 50), the Board approved Amendment No. 2 to Cooperative Agreement No. 14-603 (Caltrans Agreement No. 08-1589), with Caltrans increasing the estimated Project design cost by $1,252,000, from $6,300,000 to $7,552,000, bringing the estimated total Project cost from $112,067,000 to $113,319,000.
On September 15, 2020 (Item No. 48), the Board approved Amendment No. 2 to Cooperative Agreement No. 18-32 (Funding Agreement No. 17-1001710), with SBCTA updating the Parties funding shares costs for the Project, including Caltrans’ amended design services costs.
On October 3, 2023 (Item No. 40), the Board approved Amendment No. 1 to Cooperative Agreement No. 18-865 (Funding Agreement No. 18-1001962) with SBCTA adjusting the Parties funding share responsibilities, increasing the total Project cost by a net $74,000, from $112,067,000 to $113,393,000 (Amendment No. 1 also includes the additional $1,252,000 Caltrans design costs approved by the Board on September 15, 2020), updating the Project milestones and Point of Contact, and extending the term by five years, for a new term of January 9, 2019 to December 31, 2028.
On April 1, 2026, SBCTA approved an amendment to the SBCTA Measure I 2010-2040 Strategic Plan Policy 40005 - Valley Freeway Interchange Program to allow for loans from Valley Freeway Interchange Program funds for the required Developer Share of project costs for the top 10 interchanges in the most current interchange prioritization list established by the SBCTA Board of Directors. The Department intends to return to the Board on May 19, 2026, to approve a no-interest term loan from SBCTA pursuant to this policy to fund the County’s remaining obligations for this contract.
On October 22, 2019 (Item No. 26), the Board approved Cooperative Agreement No. 19-703 with Fontana, establishing its fair-share contribution for the Project. On December 6, 2022, (Item No. 44), the Board approved Cooperative Agreement No. 22-1223 with Rialto, also establishing its fair-share contribution for the Project. The County is currently engaged in discussions with Fontana and Rialto and will present amendments to their existing agreements to the Board at a later date for their proportionate share of the Project cost increase.
PROCUREMENT
Not applicable.
REVIEW BY OTHERS
This item has been reviewed by County Counsel (Aaron Gest, Deputy County Counsel, 387-5455) on March 18, 2026; and County Finance and Administration (Kathleen Gonzalez, Administrative Analyst, 387-5412) on March 24, 2026.