Madera County signs Caltrans oversight deal and buys mitigation credits as State Route 41 Expressway moves toward construction

Madera County approved three agreements Tuesday related to the upcoming State Route 41 Expressway construction: a cooperative agreement with Caltrans for environmental oversight during construction and two mitigation‑credit purchases to satisfy wetland and vernal pool impacts.

Public Works staff said construction on the SR‑41 Expressway project is expected to begin in March 2026. The board approved a cooperative agreement with Caltrans to provide environmental monitoring and oversight during construction at a county cost of $2,164,970.

Separately, the county agreed to buy in‑lieu mitigation credits to cover habitat impacts the environmental review identified. The county will purchase 0.54 vernal pool credits in the Southern Sierra Foothills vernal pool service area and 1.95 aquatic‑resource credits in the unallocated program area through the National Fish and Wildlife Foundation for a combined total the county reported as $1,773,560.

In a separate agreement the board also approved a purchase of 7.63 vernal pool fairy shrimp species credits from the Kennedy Table Conservation Bank for $462,800 to mitigate species‑specific impacts identified in the project’s environmental documents.

Board members voted for the agreements on roll calls recorded in the meeting; staff said the credits and Caltrans oversight contract are required to meet the project’s environmental commitments so construction can proceed.

Public Works described the credits as standard in‑lieu mitigation purchases: they do not represent on‑site mitigation but rather acquisition of mitigation in established service areas managed by the mitigation providers. Board members asked clarifying questions about where mitigation credits are banked and how the foundation or bank spends or manages the funds; staff explained the credits are used to provide mitigation elsewhere in the service areas identified in the environmental approvals.

Staff told the board project impacts include both aquatic habitats and vernal‑pool habitats; the purchased credits were sized to satisfy those specific mitigation obligations.