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Watershed Existing Conditions Study

In 2004, Questa Engineering was hired to prepare a Watershed Existing Conditions Technical Study for the Arroyo Burro, Mission and Sycamore Creek watersheds.

The purpose of the existing conditions study is to integrate information on watershed characteristics such as natural resources, creek hydrology, water quality, cultural resources, urban infrastructure management, land use, and jurisdictional policies. The study also analyzes how historical activities, including land development, have contributed to current conditions, and identifies any critical information gaps.

The study was expanded in 2005 to include the Laguna Watershed.

See List of Figures Below (Please note there is no Section 2):

Section 1.0 - Introduction

Fig. 1-1: Study Area Locator Map
File Size: 4.32 MB Last Modified: 3/25/2013 4:26:34 PM

Fig. 1-2: Political Jurisdiction
File Size: 848 KB Last Modified: 3/25/2013 4:27:00 PM

Fig. 1-3: Subwatersheds and Management Reaches
File Size: 1.37 MB Last Modified: 3/25/2013 4:27:17 PM

Fig. 1-4: Creek Names and Reaches
File Size: 1.28 MB Last Modified: 3/25/2013 4:27:33 PM

Fig. 1-5: Watershed and Subwatershed Names
File Size: 1.3 MB Last Modified: 3/25/2013 4:27:51 PM

Section 3.0 - Land Use, Cultural Resources, and Infrastructure

Fig. 3-1: Land Use and Land Cover
File Size: 1.64 MB Last Modified: 3/25/2013 4:28:17 PM

Fig. 3-2: Neighborhoods
File Size: 1.19 MB Last Modified: 3/25/2013 4:28:35 PM

Fig. 3-3: Impervious Surfaces
File Size: 1.6 MB Last Modified: 3/25/2013 4:28:52 PM

Fig. 3-4: Population Density
File Size: 991.9 KB Last Modified: 3/25/2013 4:29:08 PM

Fig. 3-5: City and County Zoning
File Size: 1.19 MB Last Modified: 3/25/2013 4:29:54 PM

Fig. 3-6: City and County Parks
File Size: 960.5 KB Last Modified: 3/25/2013 4:30:12 PM

Fig. 3-7: Paved Road Density
File Size: 873.6 KB Last Modified: 3/25/2013 4:30:29 PM

Section 4.0 - Citywide Watershed Conditions

Fig. 4-01: Geology
File Size: 1.18 MB Last Modified: 5/1/2015 10:32:25 AM

Fig. 4-01: Geology Legend
File Size: 766.2 KB Last Modified: 5/1/2015 10:32:35 AM

Fig. 4-02: Soils
File Size: 985 KB Last Modified: 5/1/2015 10:32:45 AM

Fig. 4-02: Soils Legend
File Size: 195 KB Last Modified: 5/1/2015 10:32:57 AM

Fig. 4-03: Landslides
File Size: 257.6 KB Last Modified: 5/1/2015 10:33:06 AM

Fig. 4-04: Landforms
File Size: 256.6 KB Last Modified: 5/1/2015 10:33:17 AM

Fig. 4-05: Sedimentation
File Size: 1.36 MB Last Modified: 5/1/2015 10:33:28 AM

Fig. 4-06: Vertical Drops
File Size: 1.36 MB Last Modified: 5/1/2015 10:33:40 AM

Fig. 4-07: Bed Mobility Potential
File Size: 1.44 MB Last Modified: 5/1/2015 10:33:54 AM

Fig. 4-08: Bank Erosion
File Size: 1.38 MB Last Modified: 5/1/2015 10:34:06 AM

Fig. 4-09: Bank Modification
File Size: 1.37 MB Last Modified: 5/1/2015 10:34:16 AM

Fig. 4-10: FEMA 100-Year Floodplain
File Size: 1.54 MB Last Modified: 5/1/2015 10:34:37 AM

Fig. 4-11: Groundwater Basins
File Size: 12.79 MB Last Modified: 5/1/2015 10:34:49 AM

Fig. 4-12: Terrestrial Vegetation
File Size: 1.05 MB Last Modified: 5/1/2015 10:34:59 AM

Fig. 4-13: Special-Status Species Map
File Size: 147.8 KB Last Modified: 5/1/2015 10:35:09 AM

Section 5.0 - Arroyo Burro Creek Watershed Existing Conditions

Fig. 5-01: Arroyo Burro Watershed
File Size: 1.36 MB Last Modified: 5/1/2015 10:36:01 AM

Fig. 5-02: Arroyo Burro Land Use/Zoning
File Size: 1.16 MB Last Modified: 5/1/2015 10:36:12 AM

Fig. 5-3: Comparison of Profiles, Arroyo Burro Creek
File Size: 288.3 KB Last Modified: 5/1/2015 10:36:37 AM

Fig. 5-04: Sedimentation, Arroyo Burro Creek
File Size: 1.31 MB Last Modified: 5/1/2015 10:36:22 AM

Fig. 5-05: Vertical Drops, Arroyo Burro Creek
File Size: 1.31 MB Last Modified: 5/1/2015 10:36:46 AM

Fig. 5-06: Bed Mobility, Arroyo Burro Creek
File Size: 1.31 MB Last Modified: 5/1/2015 10:36:59 AM

Fig. 5-07: Bank Erosion, Arroyo Burro Creek
File Size: 1.32 MB Last Modified: 5/1/2015 10:37:09 AM

Fig. 5-08: Bank Modifications, Arroyo Burro Creek
File Size: 1.32 MB Last Modified: 5/1/2015 10:37:20 AM

Fig. 5-09: FEMA Flood Area, Arroyo Burro Creek
File Size: 1.4 MB Last Modified: 5/1/2015 10:37:31 AM

Fig. 5-10: Arroyo Burro Riparian Vegetation
File Size: 18.06 MB Last Modified: 5/1/2015 8:57:39 AM

Fig. 5-11: Arroyo Burro Invasive Species
File Size: 3.95 MB Last Modified: 5/1/2015 8:58:01 AM

Fig. 5-12: Arroyo Burro Fishery Habitat and Passage Barriers
File Size: 3.41 MB Last Modified: 5/1/2015 8:58:25 AM

Section 6.0 - Mission Creek Watershed Existing Conditions

Fig. 6-01: Mission Creek Watershed
File Size: 1.4 MB Last Modified: 5/1/2015 10:38:54 AM

Fig. 6-02: Mission Creek Land Use/Zoning
File Size: 1.2 MB Last Modified: 5/1/2015 10:39:04 AM

Fig. 6-03: Comparison of Profiles, Mission Creek
File Size: 307.2 KB Last Modified: 5/1/2015 10:39:13 AM

Fig. 6-04: Sedimentation, Mission Creek
File Size: 1.33 MB Last Modified: 5/1/2015 10:39:24 AM

Fig. 6-05: Vertical Drops, Mission Creek
File Size: 1.34 MB Last Modified: 5/1/2015 10:39:35 AM

Fig. 6-06: Bed Mobility, Mission Creek
File Size: 1.35 MB Last Modified: 5/1/2015 10:39:46 AM

Fig. 6-07: Bank Erosion, Mission Creek
File Size: 1.35 MB Last Modified: 5/1/2015 10:39:59 AM

Fig. 6-08: Bank Modifications, Mission Creek
File Size: 1.34 MB Last Modified: 5/1/2015 10:40:10 AM

Fig. 6-09: FEMA Flood Area, Mission Creek
File Size: 1.46 MB Last Modified: 5/1/2015 10:40:21 AM

Fig. 6-10: Mission Creek Riparian Vegetation
File Size: 1.4 MB Last Modified: 5/1/2015 9:02:23 AM

Fig. 6-11: Mission Creek Invasive Species
File Size: 3.88 MB Last Modified: 5/1/2015 9:02:42 AM

Fig. 6-12: Mission Creek Fishery Habitat and Passage Barriers
File Size: 3.89 MB Last Modified: 5/1/2015 9:03:05 AM

Section 7.0 - Sycamore Creek Watershed Existing Conditions

Fig. 7-01: Sycamore Watershed
File Size: 1.13 MB Last Modified: 5/1/2015 10:41:21 AM

Fig. 7-02: Sycamore Land Use/Zoning
File Size: 1.32 MB Last Modified: 5/1/2015 10:41:30 AM

Fig. 7-03: Comparison of Profiles, Sycamore Creek
File Size: 270.5 KB Last Modified: 5/1/2015 10:41:41 AM

Fig. 7-04: Sedimentation, Sycamore Creek
File Size: 1.08 MB Last Modified: 5/1/2015 10:41:51 AM

Fig. 7-05: Vertical Drops, Sycamore Creek
File Size: 1.08 MB Last Modified: 5/1/2015 10:42:03 AM

Fig. 7-06: Bed Mobility, Sycamore Creek
File Size: 1.08 MB Last Modified: 5/1/2015 10:42:14 AM

Fig. 7-07: Bank Erosion, Sycamore Creek
File Size: 1.08 MB Last Modified: 5/1/2015 10:42:25 AM

Fig. 7-08: Bank Modifications, Sycamore Creek
File Size: 1.07 MB Last Modified: 5/1/2015 10:42:36 AM

Fig. 7-09: FEMA Flood Area, Sycamore Creek
File Size: 1.19 MB Last Modified: 5/1/2015 10:42:46 AM

Fig. 7-10: Sycamore Creek Riparian Vegetation
File Size: 1.08 MB Last Modified: 5/1/2015 9:06:39 AM

Fig. 7-11: Sycamore Creek Invasive Species
File Size: 2.89 MB Last Modified: 5/1/2015 9:06:59 AM

Fig. 7-12: Sycamore Creek Fishery Habitat and Passage Barriers
File Size: 2.89 MB Last Modified: 5/1/2015 9:07:23 AM

Section 8.0 - Laguna Creek Watershed Existing Conditions

Fig. 8-1: Laguna Creek Watershed
File Size: 1.17 MB Last Modified: 5/1/2015 9:07:44 AM

Fig. 8-2: Laguna Creek Land Use/Zoning
File Size: 1.22 MB Last Modified: 5/1/2015 9:08:03 AM

Fig. 8-3: Bank Erosion, Laguna Creek
File Size: 2.67 MB Last Modified: 5/1/2015 9:08:22 AM

Fig. 8-4: Bank Modifications, Laguna Creek
File Size: 1.13 MB Last Modified: 5/1/2015 9:08:44 AM

Fig. 8-5: FEMA Flood Area, Laguna Creek
File Size: 1.24 MB Last Modified: 5/1/2015 9:09:03 AM

Fig. 8-6: Laguna Creek Riparian Vegetation
File Size: 1.14 MB Last Modified: 5/1/2015 9:09:28 AM

Fig. 8-7: Laguna Creek Invasive Species
File Size: 2.46 MB Last Modified: 5/1/2015 9:09:46 AM

Fig. 8-8: Laguna Creek Fishery Habitat and Passage Barriers
File Size: 2.05 MB Last Modified: 5/1/2015 9:10:07 AM

Last Updated: Feb 1, 2016