1. General information
Location and description of the intervention
City or FUA
Hawthorne, Los Angeles
Region
Northern America
Short description of the intervention
The intervention targeted a section of the Dominguez Creek for restoration, with the aim of achieving a "multi-benefit project [which] creates passive and active recreation opportunities for park-poor communities, reestablishes native riparian plantings and captures stormwater before entering the channel along the Dominguez Creek in cities of Gardena and Hawthorne" (Ref. 2). Previously being characterised by the local community as a “Triple U” (Undesirable, Unsafe and Unusable) area, the project aimed to support a variety of environmental, sustainability, and humanitarian activities (Ref. 1). The nature-based solution interventions which were implemented as a result of the project mainly pertained to the planting of in situ trees, shrubs and groundcover plants; restoration of the riparian habitat; temporary installation of a "mini-urban forest for a shaded respite from the harsh downtown streetscape"; aiding in stormwater capture; conservation of water resources through using native plant species; and creating "watershed awareness" (Refs. 1, 2, 4, 5 and 8).
Address

United States

Area boundary
POINT (-118.326085 33.923688)
POINT (-118.326343 33.909728)
POINT (-118.322395 33.902747)
POINT (-118.335527 33.887429)
NBS area image
Source of NBS area image
Google Maps: https://www.google.com/maps/dir/W+120th+St,+Hawthorne,+CA,+USA/Crenshaw+Blvd,+Los+Angeles,+CA,+USA/33.9025101,-118.325657/33.8876085,-118.3354843/@33.9046852,-118.3261152,13.59z/data=!4m16!4m15!1m5!1m1!1s0x80c2b5df522b58a5:0x3f1f13465ca8cc15!2m2!1d-118.3260194!2d33.9237421!1m5!1m1!1s0x80c2b4e058876c5b:0x8d16a51f319c3a87!2m2!1d-118.3265755!2d33.9097575!1m0!1m0!3e1 [accessed 10/11/21; location points compiled from refs 8 and 10].
Total area
1858.00m²
Type of area before implementation of the NBS
Please specify “other type of area” before implementation of the NBS
The Dominguez Creek is an example of a blue space area, but prior to the intervention, was considered to comprise "20,000 square feet of cracked and uneven pavement and graffiti throughout what was then characterized by the community as “Triple U” (Undesirable, Unsafe and Unusable)" (Ref. 1).
Timeline of intervention
Start date of the intervention (planning process)
2009
Start date of intervention (implementation process)
2010
End date of the intervention
2012
Present stage of the intervention
Goals of the intervention
In 2010, the Dominguez Enhancement & Engagement Project (The Deep) was initiated, with the intention of "revitaliz[ing] 20,000 square feet of cracked and uneven pavement and graffiti throughout what was then characterized by the community as “Triple U” (Undesirable, Unsafe and Unusable)" (Ref. 1). The project was intended to provide multiple benefits, including "creat[ion of] passive and active recreation opportunities for park-poor communities, reestablish[ment of] native riparian plantings and captur[ing of] stormwater before entering the channel along the Dominguez Creek in cities of Gardena and Hawthorne" (Ref. 2). In terms of nature-based solutions, the DEEP project primarily intended to focus efforts on the restoration of the riparian habitat and the planting of trees so that a natural corridor could be created which would provide "countless...benefits to the surrounding community" (Refs. 3 & 4).
Quantitative targets
Based on the references available, it appears that quantitative targets developed for the intervention were limited to the goal of revitalising an area of 20,000 square feet (1858 square metres) (Ref. 1).
Monitoring indicators defined
Evidence was not accessible to suggest that specific monitoring indicators were defined for the intervention, however, the project and its intended consequences have been summarised as follows, "The DEEP is a community and youth engagement initiative that will green the Dominguez Creek through sustainable landscape standards, create watershed awareness and provide recreational opportunities for park-poor communities in Hawthorne, Gardena and surrounding Los Angeles neighborhoods" (Ref. 8).
Climate change adaptation: What were the goals of the NBS?
What types of restoration goals are / were defined for the NBS intervention?
Implementation activities
The following implementation activities were undertaken:
- The project was designed through collaboration with students from the Environmental Charter High School (ECHS) and the surrounding community (Ref. 1), "The ECHS students played an active role on the team, designing site elements and leading the community engagement effort. They hit the neighbourhood streets around the project to present their ideas to residents and passersby and they ultimately won the support of the community who was eager for the implementation" (Ref. 1);
- The LA County Flood Control District installed new irrigation the trees and shrubs to be planted (Ref. 1), they also "amended the soil" (Ref. 1) and installed "fencing, gates, signage, and granite benches, and resurfaced the bike path" (Ref. 6);
- In September 2012, "The DEEP project was introduced to downtown Los Angeles pedestrians on a sign of the “park”...[and] SWA LA created the “Displaced Forest” installation, a mini-urban forest for a shaded respite from the harsh downtown streetscape" (Ref. 1).
- The mini urban forest installation was supported by the help of Sunny Slope Nursery who donated 20 boxed trees (Ref. 1). The trees from the urban forest were afterwards relocated to The DEEP site and planted (Ref. 1);
- In December 2012, a community Planting Day saw over 70 volunteers clean up the Dominguez Creek corridor and plant 21 new, native trees and more than 600 shrubs and groundcover plants donated from local nurseries (Refs. 1 & 6);
- Whilst the timeline on this aspect is a little unclear, it appears that a further 60 trees were planted along the Dominguez Creek to create a "60-tree urban canopy" (Ref. 4); and
- Plants were located "in areas selected by youth to enhance awareness and encourage public use of the channel" (Ref. 11).
Native plants were used for the project as they require "minimal irrigation, thus conserving the community's water sources" and provide increased habitat for pollinators, which are "essential for the development of the natural environment" (ref 5), and the project further intended to promote "sustainable landscape standards [and] create watershed awareness" (ref 8).
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Grey infrastructure featuring greens
Alley or street trees and other street vegetation
Riverbank/Lakeside greens
Parks and urban forests
Pocket parks/neighbourhood green spaces
Green corridors and green belts
Blue infrastructure
Rivers/streams/canals/estuaries
What is the level of innovation / development of the NBS related to water management?
Vegetation Type
Please specify how many trees were planted
It appears that 21 trees were initially planted (Ref. 1), followed by a further 60 trees (Ref. 4).
Please specify other amenities offered by the NBS
In addition to the restoration of riparian habitat and planting of trees, another major focus of the project was to provide recreational opportunities through resurfacing and painting of the bike path (Refs. 1 & 6). The project also saw the provision of seating, interpretive signage in English and Spanish, a community mural, new fencing along the channel and new entry gates (Ref. 1).

Public expression was also considered "an essential component of a community's identity", hence along the bicycle (and pedestrian) trails, there are "multiple opportunities for those who wish to be involved in creating art through various means like murals and installations" (Ref. 5).
Services
Expected ecosystem services delivered
Regulating services
Local climate regulation (temperature reduction)
Pollination
Habitat and supporting services
Habitats for species
Cultural services
Aesthetic appreciation
Inspiration for culture, art and design
Recreation
Social and community interactions
Scale
Spatial scale
Micro-scale: District/neighbourhood level
Beneficiaries
Governance
Non-government actors
Non-governmental organisation (NGO) / Civil society / Churches
Private sector/Corporate/Business
Citizens or community groups
Coalition with multiple of the above
Please specify the roles of the specific government and non-government actor groups involved in the initiative
As summarised by Ref. 1, the project was led in collaboration, by:
- SWA Group's landscape architects, through their Patrick T. Curran Initiative (PTCI);
- Los Angeles County Flood Control District;
- Friends y Amigos of the Dominguez Watershed;
- From Lot to Spot; and
- CivicSpark (Ref. 3).

Additionally, students from the Environmental Charter High School (ECHS) and the surrounding community were involved (Ref. 1).
Please specify other Key actors - Other stakeholders involved
Stakeholders also included students from the Environmental Charter High School (ECHS), who "played an active role on the team, designing site elements and leading the community engagement effort" (Ref. 1).
Key actors - Other stakeholders involved (besides initiating actors)
Local government/municipality
Non-government organisation/civil society
Private sector/corporate actor/company
Citizens or community group
Other
Land owners
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
No
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Unknown
Mandatory or voluntary intervention
Voluntary (spontaneous)
Please specify other type of voluntary intervention
It appears that the project was voluntary, with one of the main actors being From Lot to Spot, a "a 501c3 non-profit organization dedicated to improving blighted, urban neighborhoods in the greater Los Angeles" (Ref. 7). The project occurred under a wider "Dominguez Hills Enhancement and Engagement Project" (Ref. 6).
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Unknown
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Unknown
Please specify other vegetation type
Groundcover plants were also specified as having been planted (Ref. 1).
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Unknown
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Unknown
Co-finance for NBS
Yes
Co-financing governance arrangements
Unknown
Co-governance arrangement
Please specify other co-financing type
Trees and plants were donated by local nurseries and pro-bono work was conducted by SWA Group (Ref. 1). A grant was provided by the State of California (Ref. 4), and it appears that further financial support may have been provided by Southern California Wetlands Recovery Project (Ref. 11).
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
Total cost
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
Unknown
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Native plants were chosen in part due to their low maintenance needs as compared to non-native plants, with lower requirements for pruning, water and fertiliser (Ref. 4).
Please specify total cost (EUR)
Unknown
Please specify other source of funding
It appears that some funds may have been provided by the Southern California Wetlands Recovery Project, a consortium of "18 public agencies coordinating with each other regarding the protection, restoration, and enhancement of California’s coastal wetlands and watersheds between Point Conception and the Mexican border" (Ref. 11).
Non-financial contribution
Yes
Type of innovation
Please specify technological innovation
It appears that this intervention included some level of technological innovation through the restoration of grey infrastructure (resurfacing and painting of bicycle and pedestrian paths) but in combination with the introduction of green (trees and plants) and restoration of riparian habitat which had previously been lacking from the area (Refs. 1 & 6).
Please specify social innovation
The project had a strong social focus, with the intention of "revitaliz[ing] 20,000 square feet of cracked and uneven pavement and graffiti throughout what was then characterized by the community as “Triple U” (Undesirable, Unsafe and Unusable)" (Ref. 1). The project was intended to provide multiple benefits, including "creat[ion of] passive and active recreation opportunities for park-poor communities (Ref. 1).
Novelty level of the innovation
Please specify novelty level of the innovation
It appears that From Lot to Spot have conducted similar activities in the past, hence this innovation could be considered to be copied/derived from one of their previous initiative's, however it appears that this was quite possibly the first instance of all of the stakeholders involved collaborating on a project together.
Please specify Replicability/Transferability
The project is referred to by From Lot to Spot (FLTS) when applying for a grant for a different project, suggesting that both partnerships created, and ideas generated, through The DEEP project are being transferred elsewhere, "FLTS will be partnering with SWA Group (http://www.swagroup.com/) on design of the park. FLTS and SWA have partnered on greenspace projects in the last three years including our successful Dominguez Enhancement and Engagement Projects – which converted a vacant, blighted area of the Dominguez Creek in Gardena into a active bicycle path while restoring the natural habitat that existed along the creek" (Ref. 7).
Impacts, benefits
Description of environmental benefits
The following environmental impacts were noted:
- temporary installation of a mini-urban forest, 'Displaced Forest', provided "a shaded respite from the harsh downtown streetscape", prior to the trees being planted at The DEEP site (Ref. 1);
- "21 native trees and more than 600 shrubs and groundcover" plants were donated and planted (Ref. 1);
- "native riparian plantings" were reestablished, and "captures stormwater before entering the channel along the Dominguez Creek" (Ref. 2);
- Californian native plants were selected as they are "able to thrive without much water...allow[ing] for minimal irrigation, thus conserving the community's water sources", and also as they "requir[e] less pruning...and fertilizer" (Ref. 5);
- by using native plants, pesticide use could further be reduced, "provid[ing] opportunity where local wildlife can come and enjoy the landscape" (Ref. 5); and
- "the plants along the Dominguez Creek help...boost an environment for wildlife", by supporting pollinators (bees, birds, butterflies and other insects) which "are essential for the development of the natural environment (Ref. 5).
Economic impacts
Description of economic benefits
Unknown
Description of social and cultural benefits
The area was previously described "by the community as “Triple U” (Undesirable, Unsafe and Unusable)" (Ref. 1). From Lot to Spot recognise that "our work converting vacant, blighted spaces into community, active places, we have witnessed local crime activity decrease. Whereas a vacant lot provides a space for illicit criminal activity such as drug use, illegal dumping and prostitution, an active, empowered space no longer provides that “room”. Instead of drug use, community members witness children playing. Instead of parked cars by the vacant lot, they see mothers walking with strollers. There is a dramatic change in the use of the space, and thus in the potential for crime" (Ref. 7). Whilst the above has not been recorded as an observed impact of the project, there is potential for it to have occurred as an anticipated impact. Further, the installation of fencing along the Creek channel may have aided local safety (Ref. 1).

When considering the stakeholders (including the local community) involved in the project, SWA Group state that "these partnerships speak to a unique and unparalleled environmental justice collaboration where the community meets real-world planning" (Ref. 1). From Lot To Spot further "continues to engage the community through workshops and maintenance events" (Ref. 2).

The Creek now provides pedestrians and cyclists "the opportunity to walk and ride in a friendly and protected environment...[where they] have multiple opportunities to stop, rest and relax in one of the restorative spaces covered by native shade trees" (Ref. 5). Community murals and interpretative signage in both English and Spanish have also been installed (Refs. 6 & 9).

The project has further "enhance[d] awareness and encourage[d] public use of the channel and future development of a loop trail to connect the Dominguez watershed with other natural and cultural resources, such as Compton Creek, LA Harbor, and local beaches" (Ref. 11).
Type of reported impacts
Indicators
Indicators of impacts are as follows:
- number of trees planted;
- number of shrubs/groundcover plants planted; and
- area of pathway resurfaced and repainted.
Analysis of specific impact categories
Job creation: The NBS created ...
Environmental justice: The implementation of the NBS project resulted in ...
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
Unknown.
Methods of impact monitoring
Process of recording NBS impacts
Methods used to evaluate the impacts of NBS
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
No
Presence of indicators used in reporting
No
Presence of monitoring/evaluation reports
No
Availability of a web-based monitoring tool
No
Impact assessment mechanism
Name of any specific impact assessment tools
Unknown.
Use of GIS in mapping impacts
No
Citizen involvement
Citizens involvement in assessment/evaluation
Unknown
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
List of references
1. Hung, Y. & Hee, M. (2012). Dominguez Enhancement & Engagement Project (The DEEP). Los Angeles: SWA Group, Landscape, Infrastructure and Social Impact. http://www.ideas.swagroup.com/dominguez-enhancement-engagement-project-the-deep/ [accessed 10/11/21];
2. From Lot to Spot (n.d.). Dominguez Enhancement & Engagement Project (The DEEP). Los Angeles: From Lot to Spot. http://fromlottospot.org/thedeep/ [accessed 10/11/21];
3. L.A. Works (n.d.). DEEP- Dominguez Enhancement & Engagement Project. Los Angeles: L.A. Works. https://www.laworks.com/opportunity/a0CA000000lcjCFMAY?layoutViewMode=mobile [accessed 10/11/21];
4. State of California (n.d.). Bond Accountability: Project: Dominguez Enhancement and Engagement Project. California: State of California. http://bondaccountability.resources.ca.gov/Project.aspx?ProjectPK=14006&PropositionPK=4 [accessed 10/11/21];
5. Higareda, M. (2019). 'Who Are We?' Brochure: Dominguez Enhancement and Engagement Project. Los Angeles: Melissa Higareda. https://melissahigareda.com/from-lot-to-spot [accessed 10/11/21];
6. Kudler, A. G. (2013). Makeover For Dominguez Creek, The Broad Museum Tops Out. Los Angeles: Curbed L.A.. https://la.curbed.com/2013/1/3/10289464/big-sprucing-for-dominguez-creek-the-broad-museum-tops-out [accessed 10/11/21];
7. Viviana & From Lot to Spot (n.d.). Cypress Park Pocket Park. Los Angeles: GOOD Worldwide Inc. https://maker.la2050.org/myLA2050play/projects/fromlottospot.html [accessed 10/11/21];
8. Patrick T Curran Initiative (2012). Dominguez Channel Enhancement and Engagement Project (DEEP). Hawthorne, California: Patrick T Curran Initiative (via Facebook). https://m.facebook.com/events/hawthorne-california/dominguez-channel-enhancement-and-engagement-project-deep/433460353369797/ [accessed 10/11/21];
9. National ASLA (n.d.). Year of Public Service: Dominguez Enhancement & Engagement Project (DEEP). Washington, D.C.: American Society of Landscape Architects (ASLA). https://www.pinterest.co.uk/pin/180284791306500021/ [accessed 10/11/21];
10. Field Trip (n.d.). Weekend Sherpa: Rollin' in the DEEP. San Francisco: NianticLabs. https://www.fieldtripper.com/c/cPlGiHCnqSA=/ [accessed 10/11/21]; and
11. Southern California Wetlands Recovery Project (n.d.). Dominguez Enhancement and Engagement Project. Oakland, California: Southern California Wetlands Recovery. https://scwrp.org/projects/dominguez-enhancement-and-engagement-project/ [accessed 10/11/21].
Comments and notes
Additional insights
The project intended to "reestablish.. native riparian plantings and capture...stormwater before entering the channel along the Dominguez Creek in cities of Gardena and Hawthorne" (ref. 2), suggesting that the intervention provides some level of water management through the creation of green areas, however, it is unclear exactly how this was to be achieved.
Public Images
Image
Dominguez Enhancement & Engagement Project: Before and After (Artists' Impression)
Dominguez Enhancement & Engagement Project: Before and After (Artists' Impression)
https://melissahigareda.com/from-lot-to-spot
Image
Planting at the Dominguez Enhancement & Engagement Project
Planting at the Dominguez Enhancement & Engagement Project
http://www.ideas.swagroup.com/dominguez-enhancement-engagement-project-the-deep/