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SB 1250

State highway system: wildlife connectivity.

2025-2026 Regular Session Introduced by Catherine Blakespear and 2 co-sponsors

California highway authority must incorporate wildlife crossing features and habitat connectivity into state highway planning and construction to reduce animal deaths and habitat fragmentation.

From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 1.) (June 30). Re-referred to Com. on APPR.
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Bill Summary · SB 1250

Legislative bill overview

SB 1250 requires the California Department of Transportation (Caltrans) to integrate wildlife connectivity considerations into state highway system planning, design, and maintenance. The bill mandates that Caltrans assess how highways impact wildlife movement corridors and implement mitigation measures such as wildlife crossings, underpasses, and overpasses on state routes.

Why is this important

Highways fragment natural habitats and kill hundreds of thousands of animals annually, disrupting breeding patterns and genetic diversity in wildlife populations. Integrating connectivity planning into highway projects addresses these ecological impacts while potentially reducing vehicle-wildlife collisions, which endanger both animals and drivers. This represents a shift toward requiring environmental consideration in transportation infrastructure at the state level.

Potential points of contention

  • Cost and implementation burden: Retrofitting existing highways or designing new ones with wildlife connectivity features requires significant upfront investment and may increase project timelines and complexity for Caltrans
  • Definition and enforcement standards: The bill's effectiveness depends on clear criteria for what constitutes adequate wildlife connectivity and how compliance will be measured and enforced across diverse California ecosystems
  • Balance with transportation priorities: Stakeholders may debate whether wildlife connectivity requirements could delay or complicate critical highway improvements, expansion projects, or maintenance work
  • Scientific uncertainty: Disagreement may exist over which species warrant protection, which corridors are most critical, and whether proposed mitigation methods are scientifically proven effective in California's varied landscapes

Compiled from official sources — confirm details with the bill’s official record.

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