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California State Route 99

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Title: California State Route 99  
Author: World Heritage Encyclopedia
Language: English
Subject: List of state highways in California, California State Route 70, California State Route 65, California State Route 41, Interstate 5 in California
Collection: Central Valley (California), Chico, California, Freeways in California, Historic Trails and Roads in California, Roads in Butte County, California, Roads in Fresno County, California, Roads in Kern County, California, Roads in Madera County, California, Roads in Merced County, California, Roads in Sacramento County, California, Roads in San Joaquin County, California, Roads in Stanislaus County, California, Roads in Sutter County, California, Roads in Tehama County, California, Roads in Tulare County, California, Southern California Freeways, State Highways in California, Streets in Visalia, California, Transportation in Bakersfield, California, Transportation in Sacramento, California, Transportation in Visalia, California, U.S. Route 99, Yuba City, California
Publisher: World Heritage Encyclopedia

California State Route 99

State Route 99 marker

State Route 99
Golden State Highway
Route information
Defined by Streets and Highways Code § 399
Maintained by Caltrans
Length: 424.85 mi[1] (683.73 km)
(includes unsigned overlap with US 50 and I-5)
Existed: 1928 as US 99, 1964 as SR 99 – present
Major junctions
South end: I‑5 near Wheeler Ridge
  SR 58 in Bakersfield
SR 41 in Fresno
SR 108 / SR 132 in Modesto
SR 120 in Manteca
SR 4 in Stockton
US 50 / I‑80 Bus. in Sacramento
SR 20 in Yuba City
North end: SR 36 near Red Bluff
Highway system
US 99 US 101
Facing north from Skyway on State Route 99 in Chico. Butte College is visible on the right.

State Route 99 (SR 99), commonly known as Highway 99 or, simply, as 99 (without any further designation), is a north–south state highway in the U.S. state of California, stretching almost the entire length of the Central Valley. From its southern end at Interstate 5 (I-5) near Wheeler Ridge to its northern end at SR 36 near Red Bluff, SR 99 goes through the densely populated eastern parts of the valley. Cities served include Bakersfield, Visalia, Fresno, Madera, Merced, Modesto, Stockton, Sacramento, Turlock, Yuba City, and Chico.

The highway is a remnant of the former Mexico to Canada U.S. Route 99 (US 99), which was decommissioned after being functionally replaced by I-5 for long-distance traffic. Almost all of SR 99 south of Sacramento is a freeway, and there are plans to complete this part to Interstate Highway standards, as a parallel route to I-5 for Los Angeles–Sacramento traffic. North of Sacramento, the road ranges from a rural two-lane road to a four-lane freeway.


  • Route description 1
  • History 2
    • From initial construction to U.S. Route 99 2.1
    • As a state route 2.2
  • Future 3
  • Exit list 4
  • See also 5
  • References 6
  • External links 7

Route description

SR 99 is part of the California Freeway and Expressway System.[2]

From its southern terminus at I-5 in Wheeler Ridge (Wheeler Ridge Interchange) to Sacramento, SR 99 passes through the major cities of the San Joaquin Valley, including Bakersfield, Delano, Tulare, Visalia, Fresno, Madera, Merced, Modesto, and Stockton. A majority of this segment is built to freeway standards, However, there are portions that are a four-lane divided highway, including the section between Merced and Chowchilla that has at-grade intersections. The portion of the highway between Fresno and Modesto has been designated the "100th Infantry Battalion Memorial Highway."[3]

The freeway sections connect and serve the agriculture and industry of the California Central Valley, connecting agricultural production with processing and packing businesses. Most of the freeway also parallels the Union Pacific's Fresno Subdivision.

In Sacramento, SR 99 first joins with I-80 Business as part of the Capital City Freeway, then runs concurrently with I-5. These SR 99 concurrences are not officially designated by the California Department of Transportation (Caltrans), but mapmakers often show it as such. SR 99 signage had existed along that route for motorists' convenience, but was removed in 2000, and replaced by TO SR 99 signs instead.

SR 99 then splits from I-5 in northern Sacramento, and then heads along the eastern segment of the Sacramento Valley through Yuba City, and Chico to its northern terminus at SR 36 near Red Bluff. A majority of SR 99 from Sacramento to Red Bluff is a two-lane highway, while segments in Yuba City and Chico that are built to freeway standards. The portion between Salida and Manteca is designated the "442nd Regimental Combat Team Memorial Highway."[3]


From initial construction to U.S. Route 99

The first state highway bond issue, approved by the state's voters in 1910, included a north–south highway through the central part of the state consisting of Route 3 through the Sacramento Valley from the Oregon state line south to Sacramento, replacing the Siskiyou Trail, and Route 4 through the San Joaquin Valley from Sacramento to Los Angeles. In addition, a second route followed the west side of the Sacramento Valley, using Route 7 from Red Bluff south to Davis and the short Route 8 east along the proposed Yolo Causeway to Sacramento. North of Bakersfield these closely paralleled some of the main lines of the Southern Pacific Railroad, including the Fresno Line, East and West Valley lines, Shasta Line and Siskiyou Line.

By 1920 paving of both routes from Red Bluff to Los Angeles was completed or in progress, including the only mountain crossing south of Red Bluff, the Ridge Route just north of Los Angeles. To the north of Red Bluff, the road was being graded but not paved over the Siskiyou Mountains into Oregon.[4] Paving was finally completed in mid-1933, when a new alignment (now SR 263) opened through the Shasta River Canyon.[5]

The route from Davis to Oregon via Routes 7 and 3 came to be known as part of the Canada and Mexico.[8] The split in the Sacramento Valley was known as the East and West Side highways (the latter also carrying the Pacific Highway).[9] South of Sacramento Route 4 was the Valley Route, but the San Joaquin Valley Tourist and Travel Association held a contest to rename it, selecting Golden State Highway as the winning entry in July 1927.[10][11] To this day, "Golden State Highway" is SR 99's default name in areas not given other names by the Legislature, and the name continues from its end at Wheeler Ridge on I-5 as the Golden State Freeway from there to downtown Los Angeles.

This north–south central highway became part of US 99 in 1926, as part of the new United States Numbered Highway System developed by the American Association of State Highway Officials (AASHO),[12] though signs were not posted in California until 1928.[13][14] US 99 also continued southeast from Los Angeles along a paved state highway, Route 9 and 26, to US 80 in El Centro.[15] The paved county road south from El Centro to the Mexican border became a state highway in mid-1931,[16] and part of US 99 in mid-1932.[17]

In mid-1929, AASHO approved a split designation between Sacramento and Red Bluff, with US 99W replacing the original western route via Davis, and US 99E following the East Side Highway (Route 3) via Roseville.[18] A short-lived split also existed between Manteca and Stockton in the early 1930s, with US 99E becoming the main route and US 99W becoming an extended SR 120 where not concurrent with US 50.

A third highway heading north from Sacramento was constructed by the Natomas Company in the 1910s for 13 miles (21 km) along the Sacramento River levee in order to provide access to land reclaimed and sold by the company. Sacramento and Sutter counties continued the road alongside the Sacramento River and Feather River to Nicolaus, where an existing county road crossed the river on a drawbridge and ran north to the East Side Highway at Yuba City.[19] This continuous roadway between Sacramento and Yuba City was dedicated in October 1924 as the Garden Highway.[20]

Parts of the present SR 99 alignment between Sacramento and Yuba City were added to the state highway system in 1933, when the legislature added Route 87 (Sign Route 24,[21] later US 40 Alternate) from Woodland north past Yuba City to northwest of Oroville,[22] and in 1949, with the creation of Route 232 (later Sign Route 24) between Sacramento and Marysville.[23] The final piece became Route 245 (no signed number) in 1959, connecting Route 232 near Catlett with Route 87 near Tudor,[24] and following the old Garden Highway across the Feather River to a point east of Tudor. Despite this combined route connecting the same cities as the Garden Highway, the only other piece of the old county road taken for the state highway was a short segment just north of Sacramento, carrying Route 232 between Jibboom Street and El Centro Road.[25]

As a state route

When the Interstate Highway System was being planned in the 1950s, there were two proposals on which way to route a freeway through the San Joaquin Valley. One was to upgrade US 99 to Interstate standards. The other alternative to build the proposed Westside Freeway, which would bypass all the Central Valley communities and thus provide a faster and more direct north–south route through the state. The latter route, which eventually became I-5, was ultimately chosen.

The implementation of the Interstate Highway System and the mid-1964 state highway renumbering ultimately sealed the fate of the U.S. Highway designation on US 99. The Interstates eventually replaced portions of US 99, causing it to be truncated at both of its ends. Since the remnant did not cross state lines, it was not allowed to keep its U.S. Highway status.

US 99 was truncated to Los Angeles, with the old route south to Mexico becoming mainly I-10 and SR 86. At the same time Route 99 was defined legislatively to run from I-5 near Wheeler Ridge to Red Bluff, but it was only marked as SR 99 between Sacramento and Yuba City, since the remainder was still US 99 or US 99E.[13] The southern end of US 99 was moved further north to Sacramento in late 1966 and SR 99 was extended to Wheeler Ridge; the rest of former US 99 to Los Angeles was either I-5 or the locally maintained San Fernando Road.[26][27] Several years later US 99 and its branches were removed altogether from California, making SR 99 signage match the legislative definition; all of US 99W, and US 99 north of Red Bluff, remained as other routes (I-80, SR 113, and I-5), while US 99E between Roseville and Marysville became SR 65. By 1968, all US 99 signs were removed or replaced with SR 99 signs following the completion of I-5.


Caltrans' long-range plans recommend that SR 99 be upgraded to Interstate Highway standards between its southern end and Stockton (or Sacramento), which would require upgrading some substandard sections and eliminating the last at-grade intersections. Caltrans indicates the route would be designated as either I-7 or I-9, in accordance with the Interstate Highway System's numbering standards (being just east of and parallel to I-5).[28]

Exit list

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions).[29] Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

County Location Postmile
Destinations Notes
KER L0.75-57.58
  L0.75 I‑5 south – Los Angeles Southbound exit and northbound entrance; south end of SR 99; former US 99 south; I-5 north exit 221
Mettler 2.73 3 SR 166 west – Maricopa, Santa Maria
  4 Mettler Southbound exit and entrance
  5.34 5 David Road, Copus Road
  7.29 7 Sandrini Road
  9.30 9 Herring Road
  10.93 11 Union Avenue – Greenfield Northbound exit and southbound entrance; former US 99 north
  13.41 13 SR 223 (Bear Mountain Boulevard) – Arvin
    15 Houghton Road
  17.50 18 SR 119 – Taft, Lamont Former US 399
    19 Hosking Avenue Interchange under construction
Bakersfield 19.54 20 Panama Lane
21.08 21 White Lane
22.60 23 Ming Avenue
23.51 24 SR 58 east – Tehachapi, Mojave South end of SR 58 overlap; SR 58 west exit 110
23.62 24 Stockdale Highway, Brundage Lane Former SR 204
24.60 25 California Avenue – Civic Center
25.65 26A SR 58 west (Rosedale Highway) / SR 178 east (24th Street) – Buttonwillow, Lake Isabella North end of SR 58 overlap; signed as exit 26 southbound; No northbound entrance
  26B Buck Owens Boulevard Northbound exit and entrance
26.78 27 Airport Drive – Oildale Northbound exit and southbound entrance; serves Meadows Field Airport
27.05 27 SR 204 south (Golden State Avenue, SR 99 Bus. south) – Bakersfield Southbound exit and northbound entrance; former US 99 south / US 466 east
27.87 28 Olive Drive
R28.56 29 Norris Road – Oildale Southbound exit and northbound entrance
R29.88 30 SR 65 north – Porterville, Sequoia National Park Northbound exit and southbound entrance
R30.53 31 7th Standard Road, Merle Haggard Drive
Cawelo 36.52 37 Lerdo Highway – Shafter
  R39.12 39 Merced Avenue
  R41.16 41 Kimberlina Road
  44.31 44 SR 46 west (Paso Robles Highway) – Wasco, Paso Robles Former US 466 west
  R47.37 47 Whisler Road
McFarland 49.30 49 Sherwood Avenue – McFarland No northbound entrance
50 Perkins Avenue, Elmo Highway – McFarland
  52.45 52 Pond Road
Delano 54.48 54 Woollomes Avenue – Delano (SR 99 Bus. north)
55.52 55 First Avenue Northbound exit and southbound entrance
55.52 56A SR 155 east – Alta Sierra, Glennville Signed as exit 56 northbound
56.10 56B Central Delano (11th Avenue) Northbound exit is via exit 56
56.54 57 Cecil Avenue Southbound entrance is via exit 56B
county line
57.58 58 County Line Road – Delano (SR 99 Bus. south)
TUL 0.00-R53.94
    60 Avenue 16 Southbound exit and entrance
  3.06 61 Avenue 24 No southbound entrance
Earlimart 6.15 64 Avenue 48 – Earlimart
7.17 65A Avenue 56 (CR J22) – Ducor, Alpaugh Signed as exit 65 northbound; former Legislative Route 135
  65B Alpaugh (Front Street) Southbound exit only; former US 99 south
  9.71 67 Avenue 72, Avenue 76 Signed as Avenue 72 southbound
    68 Avenue 80, Avenue 76 Southbound exit and northbound entrance
Pixley 12.30 70A Avenue 96 (CR J24) – Pixley, Terra Bella
12.80 70B Court Street No southbound entrance; northbound entrance is via exit 71
  70C Pixley (Main Street) Southbound exit only
  13.33 71 Road 124 Northbound exit and entrance
  15.37 73 Avenue 120
Tipton 18.43 76 SR 190 – Tipton, Porterville, Springville
  19.46 77 Avenue 152 (CR J26) – Tipton
  79.88 Raine Rest Area
  23.49 81 Avenue 184
  25.43 83 Avenue 200
  26.05 K Street Closed; former northbound left exit
Tulare 27.60 85 Paige Avenue
28.61 86 Bardsley Avenue
29.57 87 SR 137 (Tulare Avenue)
30.58 88 Hillman Street, Prosperity Avenue, Blackstone Street
  31.85 89 M Street, Cartmill Avenue Northbound entrance is via exit 90
    90 Oaks Street Northbound exit and entrance
  33.22 91 J Street – Tulare No northbound exit; former US 99 south
  33.94 92 Avenue 260, Avenue 264
  36.41 94 Avenue 280, Caldwell Avenue
Visalia R38.75 97 SR 198 (Sequoia Freeway) – Visalia, Sequoia National Park, Hanford, Lemoore Signed as exits 96 (east) and 97 (west) northbound; SR 198 exit 101
    98A Avenue 304 – Goshen Northbound exit and entrance
    98A Avenue 304 Southbound exit and entrance
  40.79 98B Betty Drive (CR J32)
    106A Traver Northbound exit only
  48.71 106B Merritt Drive (CR J36) – Traver Signed as exit 106 southbound
  51.81 109 Avenue 384 (CR J38) – Woodlake Warlow Rest Area
  R53.82 111 Road 12; 18th Avenue
FRE R0.00-31.61
Kingsburg R0.95 112 SR 201 east (Sierra Street) – Kingsburg
R2.06 114 Bethel Avenue, Kamm Avenue
  R3.74 115 Mountain View Avenue (CR J40) – Caruthers, Dinuba
Selma R5.32 117 Second Street
6.43 118 SR 43 south (Highland Avenue) / Floral Avenue – Hanford, Corcoran
Fowler 9.16 121 Manning Avenue – Parlier, Reedley
11.10 123A Merced Street Signed as exit 123 northbound
11.84 123B Adams Avenue Southbound exit and northbound entrance
  12.40 124 Clovis Avenue
  14.51 126 American Avenue Southbound exit and northbound entrance
127 Central Avenue, Chestnut Avenue
128 Cedar Avenue, North Avenue
Fresno 18.54 130 Jensen Avenue Former SR 41 south
19.29 131 SR 41 north (Yosemite Freeway) – Yosemite Northbound exit and southbound entrance; SR 41 south exit 126A
19.29 131 SR 41 south (Yosemite Freeway) – Lemoore, Paso Robles Northbound exit is via exit 130; SR 41 north exit 126A
20.19 132A Ventura Street, Kings Canyon Road Former SR 180 east, earlier SR 41
20.74 132B Fresno Street – Civic Center
21.01 133A Stanislaus Street Southbound exit and northbound entrance; former SR 180 west, earlier both directions
22.16 133 SR 180 (Sequoia-Kings Canyon Freeway) – Mendota, Kings Canyon Signed as exits 133A (west) and 133B (east) southbound; SR 180 exit 57A
22.74 134 Belmont Avenue – Pine Flat Dam
23.30 135A Olive Avenue Signed as exit 135 southbound
23.85 135B McKinley Avenue Northbound exit and southbound entrance
24.42 136A North Golden State Boulevard, Clinton Avenue Signed as exit 136 northbound; North Golden State Boulevard was former US 99 south
  136B Princeton Avenue Southbound exit and entrance
25.00 137A Shields Avenue Southbound exit and entrance
  137B Dakota Avenue Southbound exit only
26.22 138A North Golden State Boulevard Northbound exit and southbound entrance; former US 99 north
26.55 138B Ashlan Avenue Signed as exit 138 southbound
28.10 140 Shaw Avenue
30.48 142 Herndon Avenue, Grantland Avenue Northbound entrance is via exit 143
30.99 143 Herndon Avenue (Golden State Boulevard) Southbound exit and northbound entrance; former US 99 south
MAD 0.00-29.36
  R0.99 144 Avenue 7, Road 33
  R3.56 147 Avenue 9, Road 30½, Road 31½
  R7.46 151 Avenue 12, Road 29
    152 Almond Avenue Southbound exit and entrance
  9.49 153A Gateway Drive (SR 99 Bus. north) – Madera Northbound exit only; former US 99 north
Madera 10.27 153B SR 145 (Madera Avenue) – Kerman, Firebaugh, Yosemite Signed as exit 153 southbound
11.01 154 Fourth Street – Central Madera
12.13 155 Cleveland Avenue – Millerton Lake, Yosemite
12.75 156 Avenue 16, Gateway Drive (SR 99 Bus. south) – Madera Gateway Drive was former US 99 south
  R14.22 157 Avenue 17
  R16.33 159 Avenue 18½, Road 23
  R18.68 162 Avenue 20, Avenue 20½
    164 Road 20, Avenue 21½
Califa 22.73 166 SR 152 west – Los Banos, Gilroy Northbound exit is on the left; no northbound entrance
  23.77 167 Avenue 24
  24.43 168 Avenue 24½ No access across SR 99
  26.58 170 SR 233 (Robertson Boulevard) to SR 152 west / Avenue 26 – Chowchilla
  28.17 171 Road 15 – Le Grand
    North end of freeway
MER 0.00-R37.30
    South end of freeway
Merced   179 Le Grand Road – Le Grand Opened November 2014
  185 Mission Avenue, Campus Parkway
13.09 186A Childs Avenue, Motel Drive
13.86 186B SR 140 east – Mariposa, Yosemite South end of SR 140 overlap
14.08 186C 16th Street (SR 99 Bus. north) Northbound exit only; southbound entrance is via exit 186B
14.41 187A G Street Northbound exit and southbound entrance
14.69 187B SR 59 south (Martin Luther King Jr. Way) – Downtown Merced, Los Banos South end of SR 59 overlap
15.80 188 SR 59 north (V Street) / SR 140 west / R Street North end of SR 59 / SR 140 overlap
  16.54 189 16th Street (SR 99 Bus. south) No northbound exit
  18.51 191 Franklin Road Northbound exit and entrance
  20.52 193 Buhach Road – Castle Airport Southbound exit permanently closed October 2014
  21.61 194 Atwater (Atwater Boulevard, SR 99 Bus. north) Northbound exit and southbound entrance
Atwater 22.76 195 Applegate Road – Winton
23.46 196 Atwater Boulevard (SR 99 Bus. south) – Atwater Southbound exit and northbound entrance
    198 Bellevue Road, Westside Boulevard (CR J18)
    200 Liberty Avenue, Sultana Drive
Livingston R29.00 201 Hammatt Avenue
R30.38 203 Winton Parkway
  R31.93 204 Collier Road
    206 South Avenue
  R34.43 207 Shanks Road – Delhi
    208 Bradbury Road
  R36.34 209 Golden State Boulevard (SR 99 Bus. north) Northbound exit and southbound entrance
STA R0.00-R24.75
  R0.30 Christoffersen Rest Area
Turlock R1.63 211 SR 165 (Lander Avenue, CR J14) – Central Turlock, Los Banos
R3.45 213 West Main Street (CR J17) – Patterson, Central Turlock
R4.54 214 Fulkerth Road
R5.64 215 Monte Vista Avenue – Denair
  R6.75 217 Taylor Road (SR 99 Bus. south)
  R7.81 218 Keyes Road (CR J16) – Keyes
Ceres R10.04 220 Mitchell Road
  221 Fourth Street No southbound exit
R11.91 222 Whitmore Avenue – Hughson
Modesto R13.26 223A Hatch Road east
R13.35 223B Hatch Road west
R13.90 223C South 9th Street Southbound exit is part of exit 223; former US 99 north
R14.47 225A Crows Landing Road
R15.10 225B Tuolumne Boulevard, B Street
R15.75 226A Downtown Modesto Signed as exit 226 northbound
R16.12 226B SR 108 / SR 132 (Maze Boulevard) – Vernalis Northbound exit is via exit 226
R16.83 227 Kansas Avenue
M18.52 229 Carpenter Road, Briggsmore Avenue
R20.22 230 Beckwith Road, Standiford Avenue
R21.74 232 Pelandale Avenue
Salida R22.56 233 SR 219 (Kiernan Avenue) / Broadway – Salida, Riverbank
  R24.27 234 Hammett Road
San Joaquin
SJ 0.00-38.78
Ripon 0.89 236 Main Street
1.71 237A Milgeo Avenue Northbound exit and entrance
2.37 237B Jack Tone Road Signed as exit 237 southbound
  4.89 240 Austin Road
    Moffat Boulevard Closed; former northbound left exit
  5.82 241 SR 120 west to I‑5 – Manteca, San Francisco South end of SR 120 overlap; SR 120 east exit 6
Manteca 6.65 242 SR 120 east (Yosemite Avenue) – Sonora North end of SR 120 overlap
8.83 244A Manteca (North Main Street) Closed; former southbound exit and northbound entrance
  9.18 244B Lathrop Road, North Main Street
  11.47 246 French Camp Road (CR J9)
Stockton   248 Frontage Road Closed
  250 Arch Road
  251 Clark Drive Closed; former northbound exit and entrance
16.70 252A Mariposa Road (CR J7, SR 99 Bus. north, SR 4 Bus. west) – Escalon Closed; interchange under reconstruction; former US 99 north
17.22 252B SR 4 east (Farmington Road) – Angels Camp Closed; former south end of SR 4 overlap; former SR 4
  252B SR 4 east (Golden Gate Avenue) – Angels Camp South end of SR 4 overlap; southbound entrance under construction
18.02 253 Dr. Martin Luther King Jr. Boulevard Closed; former interchange with no northbound exit; former SR 26 west / Charter Way
18.15 253 Main Street Closed; former northbound exit only
18.68 254A SR 4 west to I‑5 – Downtown Stockton, San Francisco North end of SR 4 overlap; SR 4 east exit 68B
19.29 254B SR 26 east (Fremont Street) – Linden
20.34 255 SR 88 east (Waterloo Road) – Jackson
20.88 256 Cherokee Road
21.67 257A Wilson Way (SR 99 Bus. south) – Downtown Stockton Southbound exit and northbound left entrance; former US 50 west / US 99 south
21.91 257B Frontage Road Closed
22.92 258 Hammer Lane (CR J8)
24.03 259 Morada Lane
25.42 260 Eight Mile Road
Lodi 27.50 262 Armstrong Road
28.48 263 Harney Lane
29.00 264A Cherokee Lane (SR 99 Bus. north) – Lodi Northbound exit and southbound entrance; former US 50 east / US 99 north
29.50 264B SR 12 west (Kettleman Lane) – Fairfield South end of SR 12 overlap; signed as exit 264 southbound
30.97 266 SR 12 east – Central Lodi, San Andreas North end of SR 12 overlap
31.58 267A Turner Road – Lodi (Cherokee Lane, SR 99 Bus. south) Former US 50 west / US 99 south
31.72 267B Frontage Road
32.57 268 Woodbridge Road
  33.57 269 Acampo Road
  34.58 270 Peltier Road (CR J12)
  35.60 271 Jahant Road
  36.67 272 Collier Road
  37.83 273 Liberty Road, Frontage Road
SAC 0.12-36.86
Galt 0.33 274A Crystal Way, Boessow Road Northbound exit and entrance
0.33 274A Fairway Drive Southbound exit and entrance
0.79 274B C Street – Central Galt
1.57 275A Elm Avenue, Simmerhorn Road (CR J10)
1.88 275B Pringle Avenue Southbound exit and entrance
  275B Ayers Lane Northbound exit and entrance
2.70 276 Walnut Avenue No access across SR 99
3.53 277 SR 104 east (Twin Cities Road, CR E13) – Jackson
  4.39 278 Mingo Road Northbound exit and entrance
  4.39 278 West Stockton Boulevard Southbound exit and entrance
  6.01 280 Arno Road
  7.36 281 Dillard Road
  8.96 283 Eschinger Road Southbound exit and entrance
Elk Grove 10.07 284 Grant Line Road (CR E2), Kammerer Road
12.76 286 Elk Grove Boulevard (CR E13)
13.84 287 Laguna Boulevard, Bond Road
14.87 288 Sheldon Road
    Jacinto Road Closed; former southbound exit and entrance
Sacramento 15.90 289 Cosumnes River Boulevard, Calvine Road
291 Stockton Boulevard, Bruceville Road, Mack Road Signed as exits 291A (Mack Road east, Bruceville Road) and 291B (Mack Road west) southbound; Stockton Boulevard was former US 50 east / US 99 north
19.61 293 Florin Road Signed as exits 293A (east) and 293B (west)
20.86 294 47th Avenue Signed as exits 294A (east) and 294B (west)
21.57 295 Martin Luther King Jr. Boulevard Northbound exit and southbound entrance
21.94 296 Fruitridge Road Northbound exit to Fruitridge Road east is via exit 295
23.13 297 12th Avenue
24.19 298B Broadway Northbound exit and southbound entrance; former US 50 / US 99
0.00[N 1]
298A I‑80 Bus. west (Capital City Freeway) / US 50 (El Dorado Freeway) to I‑5 / SR 99 north – San Francisco, Redding, Placerville, South Lake Tahoe Northbound exit and southbound entrance; former I-80 west; I‑80 Bus./US 50 exit 6B
0.24[N 1] 6C T Street Northbound exit and southbound entrance
  I‑80 Bus. east (Capital City Freeway) – Reno Northbound exit and southbound entrance; former I-80 east; I-5 exit 518
Gap in route
R32.12 306 I‑5 to SR 99 south – Sacramento, Woodland, Redding Southbound exit and northbound entrance; signed as exits 306 (north) and no number (south); I-5 exit 525B
33.36 307 Elkhorn Boulevard (CR E14) – Rio Linda
  35.37 309 Elverta Road
SUT 0.00-42.39
  0.95 311 Riego Road
    North end of freeway
  5.81 316 Howsley Road – Pleasant Grove Interchange
  R8.07 319 SR 70 north – Marysville, Oroville Interchange; northbound exit and southbound entrance
  11.98 Nicolaus (Nicolaus Avenue, Garden Highway) Interchange[34]
  20.99 SR 113 south / East Tudor Road – Woodland Interchange; East Tudor Road was former SR 99
Yuba City T30.63 SR 20 (Colusa Avenue) – Colusa, Yuba City, Marysville
  South end of freeway
R31.31 342 Queens Avenue
  R33.95 344 Eager Road
    North end of freeway
Butte   11.16 SR 162 west – Butte City, Willows South end of SR 162 overlap
  13.16 SR 162 east / Richvale Road – Oroville North end of SR 162 overlap
    South end of freeway
  21.81 SR 149 south to SR 70 – Oroville, Marysville Southbound exit and northbound entrance are on the left
  23.86 376 Butte College, Durham
    North end of freeway
    South end of freeway
Chico R30.60 383 Park Avenue, Skyway – Paradise
R31.50 384 East 20th Street
R32.45 385 SR 32 – Chester, Orland
R33.28 386 East First Avenue
R34.25 387A Cohasset Road, Mangrove Avenue
R34.93 387B East Avenue
  R36.31 389 Eaton Road
    North end of freeway
TEH 0.00-24.94
  4.49 CR A9 (South Avenue) to I‑5 – Corning
  24.94 SR 36 (Antelope Boulevard) – Red Bluff, Lassen National Park, Susanville North end of SR 99
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ a b Indicates that the postmile represents the distance along hidden SR 51 rather than SR 99.

See also


  1. ^ "California Log of Bridges on State Highways".  
  2. ^  
  3. ^ a b "2008 Named Freeways, Highways, Structures and Other Appurtenances in California" (PDF). California Department of Transportation. January 2009. Retrieved February 11, 2012. 
  4. ^ California State Automobile Association; Automobile Club of Southern California (1921). Engineers' Report to California State Automobile Association Covering the Work of the California Highway Commission for the Period 1911–1920. Howe & Peters. pp. 11–13.  
  5. ^ "Giant Bridges, Smooth Highway Replace Winding Shasta Road".  
  6. ^ General Map of Transcontinental Routes with Principal Connections (Map).  
  7. ^ United States Touring Map (Map).  
  8. ^ "Canada to Mexico Road".  
  9. ^ "Report Gives Condition of State Roads". Oakland Tribune. September 4, 1921. 
  10. ^ "Prizes Offered for Suitable Name for Highway Through Valley".  
  11. ^ "'Golden State Highway' Title Selected to Replace 'Valley Route'". Modesto News-Herald. July 10, 1927. 
  12. ^ United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Cartography by U.S. Geological Survey.  
  13. ^ a b "Route Renumbering: New Green Markers Will Replaces Old Shields" (PDF). California Highways and Public Works 43 (1–2): 11–14. March–April 1964.  
  14. ^ "California US Highways in 1928". California Highways. 
  15. ^ Auto Road Atlas (Map).  
  16. ^ "An act establishing certain additional state highways and classifying them as secondary highways.", in effect August 14, 1931, chapter 82, p. 102: "El Centro to Calexico"
  17. ^ Annual Report (Report).  
  18. ^ "Two Sacramento Valley Highways to be Numbered".  
  19. ^ Blow, Ben (1920). California Highways: A Descriptive Record of Road Development by the State and by Such Counties as Have Paved Highways. San Francisco: H.S. Crocker & Co. pp. 130–131, 206, 209, 273 – via 
  20. ^ "Yuba to Dedicate Garden Highway". Oakland Tribune. October 17, 1924. 
  21. ^ "State Routes will be Numbered and Marked with Distinctive Bear Signs".  
  22. ^ "An act...relating to...the addition of certain highways to the State system.", in effect August 21, 1933, chapter 767, p. 2029: includes "State Highway Route 7 near Woodland to State Highway near Yuba City."
  23. ^ "An act...relating to state highway routes.", in effect October 1, 1949, chapter 1467, p. 2555: "Route 207 is from Sacramento to Marysville..."; it was renumbered Route 232 in 1951 because there already was a Route 207
  24. ^ "An add certain additional mileage to the State Highway System.", in effect September 18, 1959, chapter 1062, p. 3110: "Route 245 is from Route 232 near Catlett to Route 87 near Tudor."
  25. ^ Road Atlas: United States, Canada, Mexico (Map). Rand McNally. 1964. 
  26. ^ "Signs of the Times". Fresno Bee. August 4, 1966. 
  27. ^ Sacramento, California (Map).   shows only SR 99 south of Sacramento, but both US 99E and US 99W still extend north.
  28. ^ "Long-Range Plans for Route 99" (PDF).  
  29. ^ a b California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original ( 
  30. ^ "Log of Bridges on State Highways". California Department of Transportation. July 2007. 
  31. ^ "All Traffic Volumes on CSHS". California Department of Transportation. 2005 and 2006. 
  32. ^ Warring, KS (November 7, 2008). "State Route 99 Freeway Interchanges" (PDF).  
  33. ^ Warring, KS (January 28, 2008). "Interstate Business Loop 80 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved 2009-04-06. 
  34. ^ Yune, Howard (January 19, 2011). "Last Highway 99 Upgrade on Track".  

External links

  • Route 99 highway conditions at California Department of Transportation
  • Route 99 at California Highways
  • July 24, 2005, San Francisco Chronicle article on Interstate upgrade
  • California 99 at
  • Virtual Tour of US 99 north of Los Angeles
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