California State Route 99

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State Route 99 marker

State Route 99
Golden State Highway
SR 99 highlighted in red
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
North end SR 36 near Red Bluff
Counties Kern, Tulare, Fresno, Madera, Merced, Stanislaus, San Joaquin, Sacramento, Sutter, Butte, Tehama
Highway system
US 99 US 101
Facing north from Skyway on State Route 99 in Chico. The Butte College, Chico Campus 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, Delano, Tulare, Visalia, Kingsburg, Selma, Fresno, Madera, Merced, Turlock, Modesto, Stockton, Sacramento, Yuba City, and Chico.

The highway is a remnant of the former Mexico to Canada U.S. Route 99 (US 99), which was decommissioned in 1972 after being functionally replaced by I-5 for long-distance traffic. Almost the entirety of the roadway from Wheeler Ridge to Sacramento has been upgraded as of January 2016 to a freeway at least four lanes wide, and Caltrans plans to further upgrade the segment to a minimum width of six lanes and also bring it into compliance with 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

SR 99 is part of the California Freeway and Expressway System,[2] and except for a small portion north of SR 20 is part of the National Highway System,[3] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[4]

Wheeler Ridge to Sacramento

CA 99 crosses the San Joaquin River at the northern border of Fresno. The early stages of construction of California High-Speed Rail's San Joaquin River Viaduct, as well as the existing Union Pacific Railroad bridge, are also visible.

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. The entirety of this segment is now built to freeway standards with complete access control, although some older portions are not yet in compliance with Interstate Highway standards. The portion of the highway between Fresno and Madera has been designated the 100th Infantry Battalion Memorial Highway, honoring the U.S. Army unit that was composed almost entirely with American soldiers of Japanese ancestry when it fought during World War II.[5]

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.

The portion between Salida and Manteca is designated the 442nd Regimental Combat Team Memorial Highway, honoring the US Army infantry regiment that, like the 100th Infantry Battalion, was also composed almost entirely of American soldiers of Japanese ancestry during World War II.[5]

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 Caltrans, but mapmakers often show it as such. SR 99 signage had existed along that route for motorists' convenience, but was removed in 2000,[citation needed] and replaced by "TO SR 99" signs instead.

North Sacramento to Red Bluff

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. SR 99 remains a four-lane freeway as the route leaves Sacramento County, but shortly reverts to a four-lane divided expressway as the highway crosses into Sutter County. As SR 99 reaches the junction of SR 70, the route turns northwest by north and becomes an undivided expressway with the exceptions of crossing the Feather River near Nicolaus and the interchange with SR 113, where the route then turns straight north to Yuba City.

As SR 99 crosses SR 20 as a signaled intersection, the highway becomes a four-lane freeway for 3 miles (4.8 km) before reverting to a two-lane road, passing the smaller towns of Live Oak, Fagan, and Gridley. SR 99 briefly is a local four-lane road through Gridley before continuing as a two-lane highway. SR 99 passes by the western side of the Thermalito Afterbay. SR 162 joins SR 99 for 2 miles (3.2 km) before splitting off east towards the northern end of the Thermalito Afterbay. SR 99 then transitions from a two-lane road to a four-lane divided expressway just before the interchange at SR 149 turning northwest and eventually a freeway entering the Chico city limits. As SR 99 leaves Chico, the highway reverts to a 2-lane road before crossing into Tehama County and passing through rural areas and the town of Los Molinos. The route then curves to the west and terminates at the junction with SR 36, approximately 1.5 miles (2.4 km) from I-5 in Red Bluff. This part of the highway is not planned to be I-7/I-9.


From initial construction to U.S. Route 99

The first state highway bond issue, approved by the state's voters in 1910,[6] 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.[7] Paving was finally completed in mid-1933, when a new alignment (now SR 263) opened through the Shasta River Canyon.[8]

The route from Davis to Oregon via Routes 7 and 3 came to be known as part of the Pacific Highway,[9][10] an auto trail organized in 1910 to connect Canada and Mexico.[11] The split in the Sacramento Valley was known as the East and West Side highways (the latter also carrying the Pacific Highway).[12] 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.[13][14] 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),[15] though signs were not posted in California until 1928.[16][17] US 99 also continued southeast from Los Angeles along a paved state highway, Route 9 and 26, to US 80 in El Centro.[18] The paved county road south from El Centro to the Mexican border became a state highway in mid-1931,[19] and part of US 99 in mid-1932.[20]

An east–west split routing north of Sacramento was approved in 1929.

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.[21] 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.[citation needed]

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.[22] This continuous roadway between Sacramento and Yuba City was dedicated in October 1924 as the Garden Highway.[23]

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,[24] later US 40 Alternate) from Woodland north past Yuba City to northwest of Oroville,[25] and in 1949, with the creation of Route 232 (later Sign Route 24) between Sacramento and Marysville.[26] The final piece became Route 245 (no signed number) in 1959, connecting Route 232 near Catlett with Route 87 near Tudor,[27] 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.[28]

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.[citation needed]

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.[16] 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.[29][30] 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.[citation needed] By 1968, all US 99 signs were removed or replaced with SR 99 signs following the completion of I-5.

During the latter 20th century, Caltrans gradually widened Route 99 into a four-lane expressway for the entire segment from Wheeler Ridge to Sacramento. As traffic levels on the highway continued to increase, the at-grade intersections on the expressway segments became extremely dangerous. Drivers on cross-streets who needed to cross the expressway often had to wait for several minutes to find suitable gaps in which to dart across heavy through traffic on Route 99 moving perpendicular to them at near-freeway speeds. Therefore, those intersections were gradually upgraded or replaced with freeway interchanges, and frontage roads were often added to provide access to adjoining lots. By 2012, there was only one remaining expressway segment with at-grade interchanges on Route 99 between Sacramento and Wheeler Ridge, in Merced County between the cities of Chowchilla and Atwater. On January 15, 2016, Caltrans officially opened the Plainsburg Road interchange, which completed the conversion of Route 99 south of Sacramento close to a freeway with near-interstate standards.


Possible signs for a future Interstate from Wheeler Ridge to Stockton or Sacramento

Caltrans' long-range plans recommend that SR 99 be upgraded to Interstate Highway standards between its southern end and Sacramento, which would require upgrading some substandard sections. 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).[31]

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).[32] 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
Wheeler Ridge L0.75 I-5 south – Los Angeles Southern terminus of SR 99; no access to I-5 north; former US 99 south; I-5 exit 221 northbound
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 (SR 99 Bus. north) – Greenfield Northbound exit and southbound entrance; former US 99 north
13.41 13 SR 223 (Bear Mountain Boulevard) – Arvin
15.43 15 Houghton Road
Bakersfield 17.50 18 SR 119 west (Taft Highway) – Taft, Lamont Former US 399
18.52 19 Hosking Avenue
19.54 20 Panama Lane
21.08 21 White Lane
22.60 23 Ming Avenue
24 SR 58 east / Stockdale Highway, Brundage Lane – Tehachapi, Mojave South end of SR 58 overlap; Brundage Lane was 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; northbound entrance is via Buck Owens Boulevard
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) 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
Shafter 36.52 37 Lerdo Highway – Shafter
R39.12 39 Merced Avenue
R41.16 41 Kimberlina Road
Famoso 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
Delano 52.45 52 Pond Road
54.48 54 Woollomes Avenue (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 (SR 99 Bus. south / CR J44)
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
Tulare 25.43 83 Avenue 200 (SR 99 Bus. north)
26.05 K Street (SR 99 Bus. north) Closed; former northbound left exit
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
90 Oaks Street Closed; former northbound exit and entrance
33.22 91 J Street (SR 99 Bus. south) No northbound exit; former US 99 south
33.94 92 Avenue 260, Avenue 264
Visalia 36.41 94 Avenue 280, Caldwell Avenue (CR J30)
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
Goshen 98A Avenue 304 – Goshen Northbound exit and entrance
98A Avenue 304 Southbound exit and entrance
40.79 98B Betty Drive (CR J32)
Traver 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
Selma R3.74 115 Mountain View Avenue (SR 99 Bus. north / CR J40)
R5.32 117 Second Street
6.43 118 SR 43 south (Highland Avenue) / Floral Avenue (SR 99 Bus. south) – Hanford, Corcoran
Fowler 9.16 121 Manning Avenue (SR 99 Bus. north)
11.10 123A Merced Street Signed as exit 123 northbound
11.84 123B Adams Avenue (SR 99 Bus. south) 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
Fresno 16.93–
128 Cedar Avenue, North Avenue
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 exit 126A southbound
19.29 131 SR 41 south (Yosemite Freeway) – Lemoore, Paso Robles Northbound exit is via exit 130; SR 41 exit 126A northbound
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
Madera 152 Almond Avenue Southbound exit and entrance
9.49 153A Gateway Drive (SR 99 Bus. north) Northbound exit and southbound entrance; former US 99 north
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, Kennedy Street, Gateway Drive (SR 99 Bus. south) Gateway Drive was former US 99 south
R14.22 157 Avenue 17
R16.33 159 Avenue 18½, Road 23
Berenda R18.68 162 Avenue 20, Avenue 20½
164 Road 20, Avenue 21½
Califa 22.73 166 SR 152 west – Los Banos, Gilroy Northbound left exit; no northbound entrance
23.77 167 Avenue 24
24.43 168 Avenue 24½ No access across SR 99
Chowchilla 26.58 170 SR 233 (Robertson Boulevard) to SR 152 west / Avenue 26 – Chowchilla
Minturn 28.17 171 Road 15 – Le Grand
MER 0.00-R37.30
176 Plainsburg Road, Sandy Mush Road Opened January 2016
179 Le Grand Road – Le Grand Opened November 2014
Merced 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 and southbound entrance
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 Atwater-Merced Expressway Former exit with Buhach Road permanently closed October 2014
Atwater 21.61 194 Atwater Boulevard (SR 99 Bus. north) Northbound exit and southbound entrance
22.76 195 Applegate Road – Winton
23.46 196 Atwater Boulevard (SR 99 Bus. south) 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
Delhi 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)
Keyes 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 R13.26 223 Hatch Road Signed as exits 223A (east) and 223B (west) northbound
R13.90 224 South 9th Street (SR 99 Bus. north) 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 Central 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 (SR 99 Bus. south) / 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 (CR J5) Signed as exit 237 southbound
Manteca 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 exit 6 eastbound
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)
248 Frontage Road Closed
Stockton 250 Arch Road – Stockton Metropolitan Airport
251 Clark Drive Closed; former northbound exit and entrance
16.70 252A Mariposa Road (SR 99 Bus. north / SR 4 Bus. west / CR J7) Re-constructed interchange opened November 2016; former US 99 north
17.22 252B SR 4 east (Farmington Road) Closed; former south end of SR 4 overlap
252B SR 4 east (Golden Gate Avenue) – Angels Camp South end of SR 4 overlap
18.02 253 Dr. Martin Luther King Jr. Boulevard Closed; former interchange with no northbound exit; former SR 26 west / Charter Way; accessible via exit 252B
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 exit 68B eastbound
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) – Central 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
27.50 262 Armstrong Road
Lodi 28.48 263 Harney Lane
29.00 264A Lodi (SR 99 Bus. north) 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 (SR 99 Bus. south) – Lodi 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 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
Elk Grove 8.96 283 Eschinger Road Southbound exit and entrance
10.07 284 Grant Line Road (CR E2), Kammerer Road
12.76 286 Elk Grove Boulevard (CR E12)
13.84 287 Laguna Boulevard, Bond Road
14.87 288 Sheldon Road
Sacramento Jacinto Road Closed; former southbound exit and entrance
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
298A US 50 (to SR 99 north) – San Francisco, South Lake Tahoe Northbound exit and southbound entrance; former I-80 west; US 50 exit 6B westbound
24.19 298B Broadway (CR J8) Northbound exit and southbound entrance; former US 50 / US 99
0.24[a] 6C[b] T Street Northbound exit and southbound entrance
I-80 Bus. east (Capital City Freeway) – Reno North end of southern section; former I-80 east
Gap in route
R32.12 306 I-5 to SR 99 south – Woodland, Redding, Sacramento South end of northern section; exit number is for I-5 north; 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
R8.07 319 SR 70 north – Marysville, Oroville Northbound exit and southbound entrance
11.98 Nicolaus Interchange via connector roads[36]
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, 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 (SR 99 Bus. north)
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
Esplanade (SR 99 Bus. south)
TEH 0.00-24.94
4.49 CR A9 (South Avenue) to I-5 – Corning, Woodson Bridge State Recreation Area
Los Molinos CR A7 (Aramayo Way) – Tehama, Gerber
24.94 SR 36 (Antelope Boulevard) – Red Bluff, Lassen National Park, Susanville Northern terminus of SR 99
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business routes


State Route 99 Business
Location Bakersfield

State Route 99 Business (SR 99 Bus.) in the city of Bakersfield follows Union Avenue and Golden State Avenue. Traveling north on SR 99, the business route begins at exit 11 (Union Avenue), and follows the original routing of US 99. Union Avenue is a rural, four-lane road for about seven miles (11 km) until it enters Greenfield at Panama Road. From there, it continues north, passing by the Bakersfield Municipal Airport and the Kern County Fairgrounds. Union Avenue widens to six lanes at Ming Avenue, just a few miles before its intersection with SR 58. At the SR 58 junction, the designation SR 204 is added to the route. SR 99 Bus./SR 204 continues north on Union Avenue until the Union Avenue Y-intersection, where the designation heads northwest on Golden State Avenue. The route passes under SR 178 and over Chester Avenue at the Garces Circle. At F Street, SR 99 Bus./SR 204 becomes a short four-lane freeway that terminates at SR 99 just before the Olive Drive exit.

See also


  1. ^ a b Indicates that the postmile represents the distance along hidden SR 51 rather than SR 99.
  2. ^ Exit number follows I-80 Bus. rather than SR 99


  1. ^ a b California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  2. ^ California State Legislature. "Section 250–257". Streets and Highways Code. Sacramento: California State Legislature. Retrieved June 9, 2017.
  3. ^ Federal Highway Administration (March 25, 2015). National Highway System: California (South) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 7, 2017.
    Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 7, 2017.
  4. ^ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
  5. ^ a b California Department of Transportation; California State Transportation Agency (January 2015). 2014 Named Freeways, Highways, Structures and Other Appurtenances in California. Sacramento: California Department of Transportation. pp. 62, 203. Archived from the original (PDF) on May 30, 2015. Retrieved May 30, 2015.
  6. ^ "An act authorizing the construction, acquisition, maintenance and control of a system of state highways in the State of California...", approved March 22, 1909, chapter 383, p. 647
  7. ^ 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. OCLC 228777554 – via Google Books.
  8. ^ "Giant Bridges, Smooth Highway Replace Winding Shasta Road". Oakland Tribune. August 13, 1933.
  9. ^ General Map of Transcontinental Routes with Principal Connections (Map). American Automobile Association. c. 1918.
  10. ^ United States Touring Map (Map). Automobile Club of America and National Highways Association. 1924.
  11. ^ "Canada to Mexico Road". Christian Science Monitor. September 28, 1910.
  12. ^ "Report Gives Condition of State Roads". Oakland Tribune. September 4, 1921.
  13. ^ "Prizes Offered for Suitable Name for Highway Through Valley". Modesto News-Herald. June 22, 1927.
  14. ^ "'Golden State Highway' Title Selected to Replace 'Valley Route'". Modesto News-Herald. July 10, 1927.
  15. ^ 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. Bureau of Public Roads. November 11, 1926. OCLC 32889555. Retrieved November 7, 2013.
  16. ^ 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. ISSN 0008-1159. Retrieved March 8, 2012.
  17. ^ "California US Highways in 1928". California Highways. [self-published source]
  18. ^ Auto Road Atlas (Map). Rand McNally. 1926 – via Broer Map Library.
  19. ^ "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"
  20. ^ Annual Report (Report). American Association of State Highway Officials. 1932. pp. 24–25. The following...were approved...on June 22, 1932: CALIFORNIA—U. S. 99 in California is extended from El Centro, its present southern terminus, to the Mexican Border.
  21. ^ "Two Sacramento Valley Highways to be Numbered". Fresno Bee. August 28, 1929.
  22. ^ 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
  23. ^ "Yuba to Dedicate Garden Highway". Oakland Tribune. October 17, 1924.
  24. ^ "State Routes will be Numbered and Marked with Distinctive Bear Signs". California Highways and Public Works. August 1934 – via
  25. ^ "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."
  26. ^ "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
  27. ^ "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."
  28. ^ Road Atlas: United States, Canada, Mexico (Map). Rand McNally. 1964.
  29. ^ "Signs of the Times". Fresno Bee. August 4, 1966.
  30. ^ Sacramento, California (Map). H.M. Gousha Company. 1967. Archived from the original on 2008-04-11; shows only SR 99 south of Sacramento, but both US 99E and US 99W still extend north.
  31. ^ "Long-Range Plans for Route 99" (PDF). California Department of Transportation. p. 57.
  32. ^ a b California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
  33. ^ "All Traffic Volumes on CSHS". California Department of Transportation. 2005 and 2006. Check date values in: |year= (help)
  34. ^ Warring, KS (November 7, 2008). "State Route 99 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved 2009-02-07.
  35. ^ 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.
  36. ^ Yune, Howard (January 19, 2011). "Last Highway 99 Upgrade on Track". Appeal-Democrat. Marysville, CA. [dead link]

External links

Route map:

KML is from Wikidata
  • 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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