August 12, 2013 § 6 Comments
As part of coursework for Dr. Susan Mulley’s Research Methods seminar in the graduate program in Landscape Architecture at Cal Poly Pomona, Hieu Nguyen chose to examine landscape changes to the Arroyo Seco through the technique of repeat photography. By comparing historical photographs to contemporary views taken from the same location, Nguyen hoped to detect changes in the parkway landscape throughout the years. “I was mainly looking for vegetation changes, urban development, physical deterioration, and obstructed viewsheds.”
Nguyen had treated the Arroyo Seco in a previous Urban Planning project, and was drawn to the topic again because of “the history, design, and uniqueness of the parkway’s scenery.”
Narrowing down available historical photographs to 10-15 that could be feasibly be physically located, Nguyen headed into the field. But things did not go quite as expected. Nguyen’s narrative offers a poignant view at how physical access to the arroyo has changed:
During the trip, I found out that I could not locate all of the camera angles that I intended to shoot due to the urban development, fencing, private properties, etc. For one photo, the walkway was so narrow, I had to grab onto the handrail on the bridge to keep myself balanced while I was taking the photo as the cars were passing by me at 40-50 mph.
For another photo, I had to climb down the Arroyo Seco Channel to get the camera angle that I wanted. However, I was not satisfied with the angle and wanted to take it from the other side of the shallow running water way. So I tried to jump across, almost slipped and got myself all wet from knee down. But when I went home and overlaid the historical photo and the current photo, I realized that the current angle was incorrect because the channel bed today was much lower than the historical one due to the flood management and channelization of the Arroyo Seco (Fig 4a).
One of my biggest disappointments was finding a lot of chain link fences on the bridges along the parkway. Because most of my camera shots were taken from the bridges, most of the photos were obstructed by the fences (Fig. 1a). Nonetheless, my professor, Dr. Susan Mulley, and classmates all agreed that the fences were significant landscape changes to the grand viewshed of the originally designed parkway and an important part of my research analysis.
Just as starkly, the historical photographs themselves show a channel that was anything but pristine. Creek Freak co-founder Jessica Hall notes that the Arroyo Seco was once characterized as a shallow and broad river. But even the earliest of the historical photos above already show levees and other substantial encroachments onto the Arroyo’s broad floodplain, which confine flow to a narrowed and deepened channel.
Such encroachments suggest that channelization did not happen in one fell swoop– attempts to control the flow of winter stormwater dated from the beginning of development in the Los Angeles basin and intensified with the changes in stormwater flow regime wrought by devegetation and proliferation of impermeable surfaces. The Army Corp’s famous post-1938 feats of flood control are merely the culmination of this history of efforts at confinement. The final result– a smooth and clean channel so conveniently free of vegetation or anything that might obstruct the swiftest flow of precipitation toward the sea. Gone is the disorderly seasonal dynamism of the original floodplain connecting the foothills to the coast. Channelization creates a streambed as neat as a conveniently placed pipe. One might imagine that streamflow originates from a magical tap in the foothills, rather than from the seeping of precipitation into the soil, and its slow under- and aboveground migration to the sea, which happens to leave in its wake a messy mosaic of vegetation and wildlife habitat.
Nguyen’s photographs also illustrate how armoring of banks with concrete did more than just alter hydrology and habitat. Channelization thoroughly severs any natural functional relationship between various parts of the larger watershed — literally paving the way to the radically featureless flat urban landscape we know today.
June 18, 2012 § 3 Comments
Sometimes funny things come in small packages, like an innocent url to a report on the Arroyo Seco. The Urban Land Institute perhaps misspoke when they wrote what makes a stream function better:
The panel concurs with much of the recent work focused
on the naturalization of the stream to enhance ecological
systems and provide unique public amenities. A portion
of the stream on the southwestern side of the stadium
may better function covered, allowing for more efficient
use of the surface for playfield and/or parking, albeit in
an impervious format. (emphasis is mine)
No, it won’t help the stream function better, but it sure could provide for more parking.
The mayor of Pasadena, Bill Bogard, welcomes feedback on the White Paper – take a look! It supports the idea of naturalizing the Arroyo (and hopefully by this we don’t mean a bypass diversion creek but the real deal). The mayor’s email address is email@example.com.
March 26, 2012 § 6 Comments
It seems as though there’s almost always a creek on golf courses in Los Angeles – be it natural, concrete or underground. And having proposed daylighting and restoration projects at a number of our local golf courses, I was happy to see this article, A Stream Runs Through It, published in the Golf Course Industry online magazine, supporting the idea. I have found that golf courses and streams can coexist, but too often golf courses alter the stream, pushing it over the edge of the property, constraining it in ways that destabilize it, removing habitat, etc. The management problems are often quite predictable. The opportunity exists to design a golf course with an understanding of stream habitat and function, leading to a richer golf experience, fewer maintenance issues, and habitat for that remaining 5-10% of LA’s waterways. Streams can separate greens, but when they traverse greens, they can become part of the play in interesting ways.
A couple of golf course/restoration locations I’ve referred to in Creek Freak posts include Devil’s Dip (I promise a post on just the golf course and restoration potential there in the near future but here’s a slide from Creek Freak’s recommendations to Mark Ridley-Thomas about it.) and South Pasadena Golf Course.
April 1, 2011 § 7 Comments
And today’s ticking time bomb for the remnant wildness of LA is in South Pasadena, along the Arroyo Seco. South Pasadena is considering taking over some undeveloped land between the Arroyo Seco Golf Course and the Arroyo Seco Nature Park. This undeveloped land has lovely habitat – which you can view in some detail at Barbara Eisenstein’s Wild Suburbia blog. « Read the rest of this entry »
March 29, 2011 § 1 Comment
Phase 1 of the multi-faceted Confluence Park project is opening tomorrow evening – Wednesday March 30th 2011.
L.A. Creek Freak covered this project’s plans and construction in earlier articles – follow those links for project details. Confluence Park celebrates the historic confluence of Los Angeles River and the Arroyo Seco – the place described in the earliest written account of the Los Angeles area. Today the spot is probably most familiar to Angelenos as the intersection of the 5 and 110 Freeways.
Confluence Plaza, located adjacent to the parking lot of the Cypress Park Home Depot, features fountains, a plaza, seating areas, and landscaping. The Santa Monica Mountains Conservancy, Mountains Recreation and Conservation Authority, Los Angeles City Mayor Antonio Villaraigosa and
Los Angeles City Councilmember Ed P. Reyes invite the public to attend the dedication – tomorrow – at 6pm Wednesday March 30th 2011. See flier for details.
January 18, 2011 § 3 Comments
Feast your eyes on this L.A. River art by Akiko Crawford. Click on each image to link to larger versions. Creek Freak ran one piece of hers of in an earlier post, then she recently posted a handful of wonderful river and bridge images, so I figured I’d check in with her and run a bunch here. There’re more, and other urban sketches, designs, renderings, photos and other stuff at Akiko Crawford: Portfolio and Art Blog.
November 12, 2010 § 2 Comments
> The Daily Breeze reports that West Basin Municipal Water District’s desalination plant in Redondo Beach opens today, Friday November 12th 2010. Creek Freak Conner Everts “would like to see them do more conservation, reclamation, and then decide if they need a desal plant.”
> At Spouting Off, Heal the Bay’s Mark Gold reports on promising regional water board votes and efforts to reduce trash in local waters. See also HtB’s Ban the Bag rally below.
> Guess the animals and win a poster from L.A. Stormwater. Deadline is next Wednesday November 17th 2010.
> Will Campell bikes the Arroyo Seco and shoots another great riders-eye-view video.
> L.A. Times Greenspace looks into scary drinking water issues in California’s San Joaquin Valley.
> Bike the Los Angeles River from Griffith Park to Long Beach this Sunday November 14th 2010, departing at 7:30am from the Autry Museum. Details at Biking in L.A.
> Heal the Bay invites you to a rally to Ban the Bag – at 8:30am on Tuesday November 16th 2010 supporting the L.A. County Board of Supervisors as they vote to ban plastic bags in county unincorporated areas. Check here for details.
> On Thursday, November 18th 2010 at 7pm, the Arid Lands Institute at Woodbury University presents Morna Livingston speaking on Steps To Water: The Ancient Stepwells of India. It’s part of the lecture series: Excavating Innovation: The History and Future of Drylands Design. The free public talk takes place at Fletcher Jones Auditorium, Woodbury University, 7500 Glenoaks Boulevard, Burbank 91510.
> On Saturday November 20th 2010 from 9am-1pm, the Elysian Valley Neighborhood Council, Council President Garcetti, and L.A. County Public Health host a free Health Fair. The event takes place at the Elysian Valley Recreation Center (1811 Ripple Street, L.A. 90039) and includes a free raffle for a new bicycle, courtesy of the Los Angeles County Bicycle Coalition.
> The Santa Monica Bay Restoration Foundation is holding its monthly Ballona Wetlands Community Open House with tours Sunday November 21st from 9:30-1:00. Guided tours leave at 10am, 11am, and 12 noon. Meet at the Fiji Gateway, 1320 FIji Way in Marina del Rey 90292, across from Fisherman’s Village.
> On Sundays November 28th and December 5th 2010, Jenny Price leads the All-Valley L.A. River Thai Noodles & Cuban Sweets Tour. It goes from the start of the L.A. River in Canoga Park to Griffith Park, and includes the Great Wall of Los Angeles mural on the walls of the Tujunga Wash. Tours go 8:30am-4pm, click here for info and to sign up.
> At 12noon on Saturday December 4th 2010 the Elysian Valley portion of the L.A. River Bike Path will officially open. To emphasize the shared nature of the facility, it’s being called the L.A. River Pedestrian/Bike Path. Creek Freak will post more event information here soon!!
> Duarte dedicates its Encanto Park Bioswale and Outdoor Nature Classroom on Tuesday December 7th 2010 at 9am. Encanto Park is located at 751 Encanto Parkway, Duarte 91010.
> On Wednesday December 8th 2010 the Santa Monica Bay Restoration Commission will host a free public Ballona Wetlands Science and Research Symposium. It takes place from 8:30am-5:30pm at University Hall 1000, Loyola Marymount University, 1 LMU Drive, LA 90045. For info and to rsvp email Karina Johnston kjohnston [at] santamonicabay.org