Goleta Beach


Goleta Beach

. The beach is occasionally closed due to nourishment efforts.

Elements

lough and wetlands

Goleta Slough is a nearby tidal estuary that empties into the Pacific Ocean. The slough drains the Goleta Valley and watershed, and receives the water of all of the major creeks in the Goleta area including the southern face of the Santa Ynez Mountains. The slough ecosystem has been affected by numerous berms and tide gates that alter tidal circulation (Audubon, 2003).

The Goleta wetlands once covered approximately convert|1150|acre|km2|0 but the current size is about 430 acres (SAIC, 1996). Groups such as the Sierra Club and Audubon Society have been especially concerned regarding the flora and fauna in this specific area. The UCSB Shoreline Preservation Fund has worked with the Goleta Slough Management Committee to conduct minor ecological restoration (such as the removal of non-native plants). The Goleta Slough Management Committee has been a vocal supporter of the California Coastal Conservancy’s plans for a major restoration project that would allow for tidal circulation in at least one of the marshland basins and was able to secure approval from the Federal Aviation Administration to go ahead with the project (as the action may affect the nearby Santa Barbara Airport).

Park

The park is a day-use park (open from 8:00 am to sunset) that features 27 picnic tables, four horseshoe pits, three restrooms, a volleyball court, a “Windamajig” and other amenities. The park itself is 29 acres large and convert|4200|ft|m of beach are included in the domain (Kisner, 1998). The [http://www.santabarbara.com/dining/review_read.asp?pk_restaurant=597 Beachside Restaurant] leases property from the Parks Department and its café and bait and tackle shop draw additional visitors. The pier, More’s Landing, was first built in 1874 and further modifications were done in the late 1920s by the federal Department of Forestry (Kisner, 1998).

The park is popular with locals and tourists alike and receives about 1.5 million visitors per year, making it the most heavily-used park in the Santa Barbara County Park system (SBCPD, 2003). The park provides 580 parking spaces, as many visitors arrive by car, via Highway 217.

The western point

The base of the point is described as “a rocky intertidal habitat, although species present there are more like those [found near] pier pilings” (Kisner, 1998). Freshwater steeps and some exposed pipes drain nearby the point. Most importantly, the rocky point is a location that suffers from serious erosion. The shape of the bay focuses wave energy at the location. Because of the erosion, the edge of the bluffs above has become somewhat unstable and may be dangerous for those walking nearby.

History

Since the late 1800s, Santa Barbara residents have been meddling with and modifying the Goleta Beach area. Nearby cattle grazing, begun in 1846, caused hillsides to erode and fill parts of the Goleta Slough with sediment. For a time, the slough met the bay on the western end of the beach (Figure 2). The federal government continued the filling to create an airbase for use during World War II (SBCPD, 2003). Further construction continued on the wetlands including a sewage treatment facility, California Highway 217, and the GBCP.

Erosion

An ongoing problem concerning Goleta Beach is coastal erosion; sand and sediment is constantly being washed away and the beach is narrowing. In fact, in the last 14 years, the beach has been eroding at an average rate of convert|20|ft|m|0-per-year. If no action is taken, the park, which consists of outdoor grills, horseshoe pits, a playground, public restrooms and shower, five parking lots and other county-maintained facilities (SBCPD, 2006), as well as the private Beachside Bar Café, is in danger of being lost. However, some proposed solutions designed to absorb wave energy and prevent erosion — particularly the so-called “hard engineering” solutions — may increase erosion elsewhere or alter the south central coast littoral cell.

A number of plans have been proposed by different stakeholders and they generally fall under three broader philosophies. The first belief is that the park must be saved at all costs and supporters have argued for “hard engineering” coastal defense. A second group of stakeholders on the opposite extreme of the spectrum calls for managed retreat where existing utilities and structures are ripped out and nature is allowed to take its course. A third option, a moderate compromise suggests that the current ‘soft’ beach nourishment strategy is worth continuing.

Coastal defense

The structural proposals consist of numerous strategies. One possible structure is a breakwater. Breakwaters are placed a few hundred feet offshore and create a harbor. Unfortunately, a breakwater would likely adversely affect littoral drift and the creation of a Goleta Bay harbor is probably too extreme. Another strategy is the installation of groynes (or groins), wood or concrete ‘fences’ that stretch out into the ocean, perpendicular to the beach. Groynes cause sediment to build up on one side but have the unhelpful consequence of preventing sediment to accumulate on the other side.

Another structure proposed is a seawall. A seawall is a concrete wall placed against the base of bluffs or sea cliffs that runs parallel to the ocean. While a sea wall may appear to be stopping erosion, a seawall can only diffuse wave energy which means that the areas on either side of the wall are likely to experience accelerated erosion. Again, this is not desired as the UCSB mesa might be adversely affected. A fourth type of structure is a revetment.

A revetment is similar to a seawall but usually consists of boulders piled at the base of cliffs. While it is less likely to accelerate erosion to either side, the area in front of a revetment may suffer. Sediment that would normally have been deposited on the beach instead bounces off the rocks and is dispersed elsewhere.

Managed retreat

Coastal users, such as the Surfrider Foundation, have called for managed retreat. Scientists and coastal engineers know that hard structures cause greater erotion of the beach sand. This option would protect coastal resources while preserving park amenities by reconfiguring them.

Beach nourishment

A third strategy is that of beach nourishment (a ‘soft’ approach). Nourishment consists of depositing sand on top of the beach in order to expand its width. This approach is not extremely expensive and is already being done at Goleta Beach. In addition to the direct transporting of sand to the beach, it would also be helpful if sediment built up in upriver basins (behind dams) be removed and placed slightly downstream to be naturally washed down to the ocean. The mouth of the slough should be kept open by periodic dredging as blockage causes eutrophication.

The Northern Gold Coast Beach Protection Strategy is an example of a successful execution of this technique. Between 1992 and 1999, the Gold Coast City Council worked with experts on a proposed plan to stop beach erosion. Options originally considered included groynes, breakwaters, and others but the City Council finally chose to dredge sediment from the nearby Gold Coast Broadwater, pump it through large pipes, and deposit it along five kilometers of coast. In addition, they planned a near-shore artificial reef to protect the project. Between 1999 and 2000, the plan was carried out with 1.1 million cubic meters of sediment being transported from the Broadwater to the beach (Jackson, 2004). Further dredging of nearby areas provided sand that was used to fill large geotextile sandbags that were dropped nearshore to create the reef. Since then, the beach has been monitored with coastal imaging technology and has fared well.

ee also

* Coastal management
* Coastal erosion

External links

Park information

* [http://www.sbparks.org/Scripts/ParksDetail.asp?ParkID=4 Santa Barbara County Parks] - recreational info

Coastal management

* [http://www.sbparks.org/goletabeach/ Goleta Beach] - Long-Term Planning Process and Working Group
* [http://www.beacon.ca.gov/ Beach Erosion Authority for Clean Oceans and Nourishment]
* [http://www.coastal.ca.gov/ California Coastal Commission]
* [http://spf.as.ucsb.edu/ Shoreline Preservation Fund]
** [http://spf.as.ucsb.edu/Goleta.coalition.html Coalition to Save Goleta's Beaches]
* [http://www.californiacoastline.org/cgi-bin/image.cgi?
] (aerial photography) - by Kenneth and Gabrielle Adelman, CaliforniaCoastline.org, October 23, 2004
* [http://www.geol.ucsb.edu/faculty/sylvester/UCSBbeaches.html UCSB Beach: 30 Years of Waxing and Waning] - by Arthur Gibbs Sylvester, UCSB Geological Sciences Department, updated January 11, 2006
* [http://www.library.ucsb.edu/subjects/envi/erosion.html Davidson Library - Beach Erosion Resources] - by Janet Martorana, UCSB Library Services, updated January 30, 2006
* [http://orgs.sa.ucsb.edu/spf/Projects/MSI/goletasloughmonitoring.html Determination of the source(s) of high nutrient concentration in Goleta Slough]
* [http://ceres.ca.gov/wetlands/geo_info/so_cal/goleta_slough.html California Wetlands Information System]

In the news

* [http://www.dailynexus.com/news/2003/5756.html Locals Seek Solutions to Erosion of Goleta Beach] - by Jenny Mayock, "Daily Nexus" (UCSB), October 16, 2003
* [http://www.newspress.com/Top/Article/article.jsp?Section=LOCAL&ID=564572451137257535&Archive=true Supervisors move to protect beach] - by Steve Malone, "Santa Barbara News-Press", December 7, 2005
* [http://www.newspress.com/Top/Article/article.jsp?Section=ARCHIVES&ID=564491052917063712&Archive=true Goleta Beach erosion panel fails to agree on fix] - by Thomas Schultz, "Santa Barbara News-Press", July 19, 2005

Related agencies

* [http://www.cityofgoleta.org/ City of Goleta]


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