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Arroyo Seco Foundation

News of the Arroyo


State awards $3.3 million grant for Hahamongna improvements





<b>November 3, 2012</b> - Water and environmental improvements in the Arroyo Seco stream above the JPL Bridge in Hahamongna will begin now that a $3.3 million state grant has been finalized.


Janette Williams, SGVN


Pasadena Star-News


Mark Hunter, right, of La Canada and a member of the Pasadena Audubon Society and Laura Garett of Pasadena, Conservation Chair of Pasadena Audubon Society, looking for birds at Hahamongna in Pasadena Tuesday, September 18, 2012. (SGVN/Photo by Walt Mancini)

PASADENA - The Arroyo Seco Foundation and the city will begin various water quality, environmental and recreation improvements in Hahamongna Watershed Park now that state funding of nearly $3.3 million has materialized.

"We've been working on this a long time," said Tim Brick, managing director of the Arroyo Seco Foundation, which secured the funding. "(The grant) is part of the Integrated Regional Water Management Program and we've been following this for seven years - it's been kind of winding its way through the process."

Brick said the partnership project could become "a model of environmental stewardship and community involvement."

The $3,271,000 award for one of 13 grant projects to be administered by the Los Angeles County Flood Control District is being funded by the California Department of Water Resources as part of Proposition 84, approved in 2006 by California voters.

The City Council approved using the entire grant amount for the Canyon component of the Hahamongna Basin Multi-Use Project, Brick said, and the foundation will take the lead in implementing the three-year project.

"It's still being shaped up, and we need more community meetings in order to run ideas by the public and get buy-in and support," he said.

Originally the city wanted to spend $1 million of the grant to grade and fill 27 acres in the Hahamongna basin, part of a plan to include a soccer field and parking area, Brick said.

"We didn't go along with that, we didn't think it was appropriate, and it was a point of contention," Brick said. "But eventually everyone agreed, (Pasadena) Public Works and Pasadena Water and Power, that the best result, instead of spending money on grading and filling, was to make water and environmental improvements."

The area involved includes a "pretty large stretch" of the arroyo stream, north of the Jet Propulsion Laboratory, Brick said.

The Hahamongna grant includes upgrading the Arroyo Seco water intake structure to capture Pasadena's full water rights; evaluating possibilities for an inflatable dam; installing a restroom, interpretive signage, picnic tables, a water fountain and a horse trough; and restoring riparian habitat in the Arroyo Seco stream by removing unused facilities, planting native plants, improving fish conditions and removing invasive species.

The three-year project will start "right away" with public outreach and education, Brick said.

For more detail visit




Arroyo Seco Foundation, 570 W. Avenue 26 #450, Los Angeles, CA 90065-1011
PO Box 91622, Pasadena, CA 91109-1622 (323) 405-7326