The following additions were recommended by "Report of a Study of the State Highway System of California", 1925:

  • 101. Crescent City to the Oregon line.
    • 1925, Route 71
  • 102. Bakersfield to Mojave.
    • 1931, Route 58
  • 103. Needles to Topock.
    • 1925, Route 58
  • 104. Blythe to Ehrenberg.
    • 1931, Route 64
  • 105. Coachella to Shavers Wells.
    • 1931, Route 64
  • 106. San Rafael to San Quentin.
    • 1925, Route 69
  • 107. San Diego to Tia Juana.
    • 1931, Route 2
  • 108. Oxnard to State Highway Route 2 (Main Coast Highway).
    • 1925, Route 60
  • 109. Susanville to the Oregon line via Alturas.
    • 1931-33, Route 73
  • 110. Coleville to Nevada State Line.
    • 1933, Route 95
  • 111. Alton to Kuntz.
    • 1933, Route 35
  • 112. San Francisco to San Jose by way of the Bay Shore.
    • 1923-25, Route 68
  • 113. Oakland to Sacramento, via Rio Vista.
    • 1931-33, Route 75; 1933, Route 11
  • 113-A. Walnut Creek to Oakland, via Moraga Valley.
    • 1953, Route 235
  • 114. From present state highway, county seat lateral Red Bluff to Susanville by way of Deer Creek Canyon, to Chico.
    • 1933, Route 47
  • 115. Palmdale southeast to Cajon Pass.
    • 1931, Route 59
  • 116. Kingsburg to General Grant National Park.
    • 1933, Routes 131 and 129
  • 117. Lakeport to Upper Lake.
    • 1933, Route 89
  • 118. Lower Lake to Tahoe-Ukiah road.
    • 1919, Route 50 (still planned via Cache Creek Canyon)
  • 119. Ray to Wilbur Springs.
    • 1919, Route 50 (still planned via Cache Creek Canyon)
  • 120. Rumsey to Woodland.
    • 1933, Route 50
  • 121. Woodland to Yuba City.
    • 1933, Route 87
  • 122. Woodland to Sacramento.
    • 1933, Route 50
  • 123. Sacramento to Tudor.
    • 1949, Route 232; 1949, Route 245
  • 124. Dunnigan to Vacaville.
    • 1933, Route 90
  • 125. Lincoln to Newcastle.
    • 1933, Route 91
  • 126. Sacramento easterly to the county line to connect with the Michigan Bar-Dry Town road.
    • 1933, Route 54
  • 127. Dixon south to the Rio Vista-Suisun road.
    • 1933, Route 101
  • 128. Batavia south to Rio Vista-Suisun road.
    • (same as 127)
  • 129. Quincy to Sattley.
    • 1933, Route 83
  • 130. Napa Cut-off.
    • 1937, Route 104; deleted 1939 (south bypass of Napa, not built)
  • 131. Napa Junction to Vallejo.
    • 1931, Route 74
  • 131-A. American Canyon Cut-off.
    • 1933, Route 104
  • 132. Sears Point to Vallejo.
    • 1939, Route 208
  • 133. Carquinez Bridge to Vallejo.
    • 1937, Route 74
  • 134. Benicia to Martinez Ferry.
    • 1947, Route 74
  • 135. Valdor to Weaverville.
    • 1916, Route 20 (was planned to bypass Weaverville to Douglas City)
  • 136. Angel's Camp to Big Trees.
    • 1925, Route 24
  • 137. Sonora to Groveland.
    • not built
  • 138. Modesto to Briceburg.
    • 1933, Route 110 (west of Coulterville only)
  • 139. Tracy to Fresno.
    • 1933, Route 41
  • 140. Chester to Indian Falls.
    • 1933, Route 83
  • 141. Dumbarton Cut-off.
    • 1949, Route 107 (Dumbarton Bridge)
  • 142. Junipero Serra Boulevard Extension.
    • 1956, Route 237 (Route 2 south of Colma to San Francisco, built by Joint Highway District No. 10)
  • 143. San Francisco to Santa Cruz by way of the Shore Line.
    • 1933, Route 56
  • 144. Redwood Park to the Coast.
    • not built
  • 145. Boulder Creek to Redwood Park Road.
    • 1933, Route 116
  • 146. Felton east to San Jose-Santa Cruz State highway.
    • not built
  • 147. Burke Sanitarium to Calistoga.
    • not built
  • 148. Woodwardia to Bodfish Road.
    • not built
  • 149. Bodfish Road (Watsonville to Gilroy Road).
    • 1933, Route 32
  • 150. Soquel to Woodwardia.
    • not built
  • 151. From 5 miles N. W. of Watsonville to 5 miles south of Woodwardia.
    • not built
  • 152. Madera to Wawona.
    • 1933, Routes 126 and 125
  • 153. Fresno to Oakhurst.
    • 1933, Route 125
  • 154. Fresno to Inyo County Line (Piute Pass).
    • 1933, Route 76

(Numbers 155 to 200 not used.)

  • 201. Bishop to the State Line.
    • 1931, Route 76
  • 202. Bishop to the Inyo County line.
    • 1933, Route 76
  • 203. Ukiah to Boonville.
    • 1963, Route 291
  • 204. Lone Pine to Camp Nelson.
    • 1933, Route 127
  • 205. Goshen to Tulare.
    • 1910, Route 4 (still went via Visalia)
  • 206. Cholame to Corcoran.
    • 1933, Route 125 (partly)
  • 207. Cray to the Oregon line.
    • not built (via Klamath River)
  • 208. Ventura north to the Cuyama Route (Santa Maria to Bakersfield).
    • 1933, Route 138
  • 209. Lebec south to connection with Los Angeles-Ventura road.
    • not built
  • 210. Castaic to Gorman.
    • 1910, Route 4 (replacement of Ridge Route)
  • 211. Doyle to Purdy.
    • 1919, Route 29 (apparently planned to cross the state line farther north)
  • 212. Riverside to San Diego.
    • 1931, Routes 78 and 77
  • 213. Red Bluff to Peanut.
    • 1933, Route 29
  • 214. Calexico to Alamo School.
    • 1933, Route 202
  • 215. Santa Monica to Saugus.
    • 1933, Route 158
  • 216. Santa Ana to San Bernardino.
    • 1931, Route 43
  • 217. Newport Beach to Santa Ana.
    • 1931, Route 43
  • 218. Santa Ana to Los Angeles.
    • 1933, Route 174 (roughly)
  • 219. Arrowhead Trail (Silver Lake Cut-off).
    • 1925, Route 31
  • 220. Pomona to Los Angeles.
    • 1931, Route 26
  • 221. Long Beach to Pasadena.
    • 1933, Route 168
  • 222. Sunland to San Fernando Boulevard.
    • not built
  • 223. Cascades to San Fernando.
    • 1933, Route 157
  • 224. Pasadena Cut-off.
    • 1933, Route 161, except was to be north of Route 9
  • 225. General Grant National Park to Sequoia National Park.
    • not built
  • 226. Peanut to Douglas City.
    • 1933, Route 35
  • 227. Big Bear Lake to Mentone.
    • 1933, Route 190
  • 228. Yreka east to Modoc County to connect with Susanville to the Oregon Line (See route No. 229 below).
    • not built, except Yreka to Montague: 1933, Route 82
  • 229. Susanville to Oregon Line, via Bieber.
    • 1959, Route 216; 1939, Route 210 (roughly)
  • 230. Willows to the Coast State highway in Mendocino County.
    • 1965, Route 261
  • 231. Downieville east to junction with Doyle-Purdy road.
    • 1933, Route 25; 1953, Route 233; 1931, Route 21