This Marin County blog post dives into a local debate about whether to move forward with plans to enlarge fish resting pools in the upper concrete Corte Madera Creek channel. It’s a tangle of flood-risk worries, regulatory hoops, and the hope of better steelhead habitat right in Marin neighborhoods from Corte Madera to San Rafael.
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What’s at stake in Marin’s Corte Madera Creek project
Corte Madera Creek is at the center of a heated discussion between Marin County supervisors, the Public Works Department, and the Friends of Corte Madera Creek Watershed. The main question is whether to reauthorize summer 2026 work to enlarge fish resting pools in the upper half of the concrete channel.
Supporters say the changes would help steelhead migrate upstream without changing water levels farther down, but opponents are nervous about flood risk tied to another part of the bigger flood project. The debate has pulled in towns all over the northbound peninsula—from Corte Madera and Larkspur to Tiburon and Mill Valley—as residents weigh habitat gains against safety concerns.
Key players and positions
Sandra Guldman, president of the Friends of Corte Madera Creek Watershed, wants the county to move ahead with pool enlargement. She argues the county’s blanket suspension goes too far, saying that removing a downstream wooden fish ladder is the real flood risk, not the pool expansion itself.
Guldman points out that the fast-moving concrete channel wears out steelhead trying to swim upstream, which could even violate the Endangered Species Act and California Fish and Game Code. Marin’s Department of Public Works, led by Christopher Blunk, has to juggle habitat restoration with flood protection. FEMA’s review of the flood project has made everyone wary of changes that could affect water flow downstream.
Still, Guldman insists that enlarging the pools won’t raise water levels or make flooding worse. She thinks the focus should stay on smart design and following the rules.
What the pool enlargement would entail
Michael Love and Associates designed larger resting pools that could really help fish get through. The plan is to let most spawners reach the fish ladder, which could boost steelhead habitat in the Corte Madera Creek Watershed without changing flood patterns downstream.
The county already has grant money and the needed approvals for this part of the project. That means the pool upgrade could be a quick win for habitat restoration in Marin, especially for folks near San Rafael and the Tamalpais corridor.
Funding, timing, and regulatory hurdles
Delays are a real headache because waiting could mean losing funding and missing permit deadlines. The Department of Water Resources (DWR) has given grant support, and if permits expire, restoration could get a lot trickier across Marin’s shorelines—from Novato to Ross and Fairfax.
Guldman keeps saying that pushing ahead with the pool enlargement now is crucial—and has strong community support across the county.
- They’ll need to make sure removing the downstream wooden ladder meets FEMA standards, and that part might need more review.
- Other channel designs could maybe improve safety, habitat, and the overall experience without hurting flood protection.
- A smart plan would let the pool enlargement continue while reviewing the ladder removal under FEMA guidelines.
What this means for Marin towns and riverfront recreation
For residents of Corte Madera, San Rafael, and nearby towns, the outcome will directly shape riverfront access and habitat restoration. Safety along the Corte Madera Creek corridor is also on the line.
In Mill Valley and San Anselmo, anglers and environmental stewards keep a close watch on the debate. Many hope for a solution that sustains steelhead runs and keeps flood protection strong for riverside neighborhoods.
If the pool-enlargement moves forward, it might stand out as a real example of how Marin’s towns—Larkspur, Ross, Sausalito, and others—try to balance environmental priorities with local planning. Recreation along the waterfront hangs in the balance, too.
Marin County residents should keep an eye out as Supervisors consider public input. The DPW continues to fine-tune the plan.
This decision will shape fish passage through the Corte Madera Creek channel. It’ll also influence the bigger conversation about restoring habitats in a region famous for scenic creeks, busy trails, and lively waterfront towns from Fairfax to Novato.
Here is the source article for this story: Marin Voice: County should continue work on Corte Madera Creek
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