2005 California Desert Exotic Mustard Roadside Survey

Interstate 40 - California - May 2005 - Raw data.
San Bernardino County

Surveyed and Copyright © 2005 by Craig Dremann

Box 361, Redwood City, CA 94064 - (650) 325-7333


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I-40 at PM 42, 8 miles west of Ludlow, mustard out into the desert for 1-2 miles solidly.

I-40 San Bernardino County PM 55, 5 miles east of Ludlow, solid out into the desert.


I-40 PM 50, Saharan mustard at Ludlow, thick along the roadsides. May 16, 2005.


I-40 Rest Stop near Essex, Saharan mustard just getting started, with desert still unmolested.


I-40 in the town of Needles, mustard solidly along the roadside. May 16, 2005.

Vicinity of I-40 and desert around the town of Needles, Saharan mustard thick in the desert. Five Miles Road exit, San Bernardino County PM 148.



Interstate 40 - May 2005 - Raw data.

Results of a 70 mph windshield survey (or whatever the local speed limits were) for Saharan Mustard (Brassica tournefortii). Either not present; is present along roadsides or in medians; or is outside of the roadside to the fence line or has moved from the roadsides to infest adjacent land.

NS = No Sahara mustard was seen along roadside ditches; or if divided highway, also not seen in the roadside median, or in lands adjacent to the road.

RS = Road Sides were infested with Sahara mustard. MED = In divided highways, in medians.

DES = Sahara mustard has moved from the roadsides into the desert, agricultural areas, or other lands adjacent to the roadsides. FL = Only found along the highway cyclone-fence line, but is far enough off the roadside to pose an immediate problem for the lands adjacent to the fences. At the time of the survey, did not appear to be moving off the fence line yet.

SPECIES SURVEYED for:

BT = Brassica tournefortii or Sahara Mustard.

PM = Post miles along highways, and numbers indicate the averages found not just at each post mile, but for 1/2 mile on either side of the post mile marker.

(Landmarks and other notes on other exotics or native plants will be in parentheses)



SAN BERNARDINO COUNTY, start at Junction I-15, Barstow, California.

Survey 5/16/2005 - Data to follow later, notebook 193, pages 22-23, 25-33.

(Post Miles)

0-1 (Barstow, California)
1 -
2 - (Marine Corps. Logistics Base exit)
3 -
4 - (Nebo Road)
5 -
6 -
7 - (Daggett)
8 -
9 -
10 -
11 -
12 - (Barstow-Daggett airport)
13 -
14 -
15 - 
16 -
17 -
18 -
Newberry Springs Road exit
19 -
20 -
21 -
22 -
23 -
24 -
25 -
26 -
27 -
28 - (Rest Stop)
29 -
30 -
31 -
32 -
Hector Road, Old US 66
33 -
34 -
35 -
36 -
37 -
38 - (Railroad overcrossing)
39 -
40 -
41 -
42 -
43 -
44 -
45 -
46 -
47 -
48 -
49 -
50 - (Ludlow exit)
51 -
52 -
53 -
54 -
55 -
56 -
57 -
58 -
59 -
60 -
61 -
62 -
63 -
64 -
65 -
66 -
67 -
68 -
69 -
70 -
71 -
72 -
73 -
74 -
75 -
76 -
77 -
78 - (Kelbaker Road exit)
79 -
80 -
81 -
82 -
83 -
84 -
85 -
86 -
87 -
88 -
89 -
90 -
91 -
92 -
93 -
94 -
95 -
96 -
97 -
98 -
99 -
100 - (Essex Road)
101 -
102 -
103 -
104 -
105 -
Rest Stop - PM 105.5
Goffs Road
106 -
107 -
108 -
109 -
110 -
111 -
112 -
113 -
114 -
115 -
116 -
117 -
118 -
119 -
120 - (Water Road)
121 -
122 -
123 -
124 -
125 -
Summit
126 -
126 -
127 -
128 -
129 -
130 -
131 -
132 -
133 - (US 95 North exit)
134 -
135 -
136 -
137 -
138 -
139 - (River Road Cutoff exit)
140 -
141 - (Needles, West Broadway exit)
142 - (Needles, J Street exit)
143 - (Needles, US 95 South exit)
144 -
145 -
146 -
147 -
148 - (Five Mile Road exit)
149 -
150 -
151 -
152 -
153 - (Park Moabi exit)
154 -
155 - (Colorado River)



End Colorado River, Arizona Border.


Updated September 7, 2005 - BACK TO MAIN PAGE