California State Route 99

U.S. Route 99 in California Interstate 5 in California U.S. Route 50 in California

State Route 99 marker

State Route 99
SR 99 highlighted in red
Route information
Defined by Streets and Highways Code § 399
Maintained by Caltrans
Length424.85 mi[1] (683.73 km)
(includes unsigned overlap with US 50 and I-5 in Sacramento)
Existed1928 as US 99, 1964 as SR 99–present
Section 1
South end I-5 near Wheeler Ridge
North end US 50 / I-80 Bus. in Sacramento
Section 2
South end I-5 in Sacramento
North end SR 36 near Red Bluff
CountiesKern, Tulare, Fresno, Madera, Merced, Stanislaus, San Joaquin, Sacramento, Sutter, Butte, Tehama
Highway system
US 99US 101
Facing north from Skyway on SR 99 in Chico with the Butte College, Chico Campus 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, Manteca, 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, south of Sacramento. 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 the California Department of Transportation (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, with plans for it to eventually become either I-7 or I-9. North of Sacramento, the road ranges from a rural two-lane road to a four-lane freeway, much of it the designation of old US 99E.

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

SR 99 crossing the San Joaquin River at the northern border of Fresno with the early stages of construction of California High-Speed Rail's San Joaquin River Viaduct, as well as the existing Union Pacific Railroad bridge, 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 along with I-80, but was removed in 2000 on I-5 , 2016 on I-80,[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 side 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 at 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 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][citation needed]

Junction 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.

KER L0.75–57.58
Wheeler RidgeL0.75 I-5 south – Los AngelesSouthern terminus of SR 99; no access to I-5 north; former US 99 south; I-5 exit 221 northbound
Mettler2.733 SR 166 west – Maricopa, Santa Maria
4.024MettlerSouthbound exit and entrance
5.345David Road, Copus Road
7.297Sandrini Road
9.309Herring Road
10.9311Union Avenue (SR 99 Bus. north) – GreenfieldNorthbound exit and southbound entrance; former US 99 north
13.4113 SR 223 (Bear Mountain Boulevard) – Arvin
15.4315Houghton Road
Bakersfield17.5018 SR 119 west (Taft Highway) – Taft, LamontFormer US 399
18.5219Hosking Avenue
19.5420Panama Lane
21.0821White Lane
22.6023Ming Avenue
24 SR 58 east – Tehachapi, MojaveSouthern end of SR 58 overlap
24.6025California Avenue – Civic Center
25.6526A SR 58 west (Rosedale Highway) / SR 178 east (24th Street) – Buttonwillow, Lake IsabellaNorthern end of SR 58 overlap; signed as exit 26 southbound; northbound entrance is via Buck Owens Boulevard
25.9026BBuck Owens BoulevardNorthbound exit and entrance
26.7827Airport Drive – OildaleNorthbound exit and southbound entrance; serves Meadows Field Airport
27.0527 SR 204 south (Golden State Avenue / SR 99 Bus. south) to SR 178 eastSouthbound exit and northbound entrance; former US 99 south / US 466 east
27.8728Olive Drive
R28.5629Norris Road – OildaleSouthbound exit and northbound entrance
R29.8830 SR 65 north – Porterville, Sequoia National ParkNorthbound exit and southbound entrance
R30.53317th Standard Road, Merle Haggard Drive
Shafter36.5237Lerdo Highway – Shafter
R39.1239Merced Avenue
R41.1641Kimberlina Road
Famoso44.3144 SR 46 west (Paso Robles Highway) – Wasco, Paso RoblesFormer US 466 west
R47.3747Whisler Road
McFarland49.3049Sherwood Avenue – McFarlandNo northbound entrance
50Perkins Avenue, Elmo Highway – McFarland
Delano52.4552Pond Road
54.4854Woollomes Avenue (SR 99 Bus. north)
55.5255First AvenueNorthbound exit and southbound entrance
55.5256A SR 155 east – Alta Sierra, GlennvilleSigned as exit 56 northbound
56.1056BCentral Delano (11th Avenue)Northbound exit is via exit 56
56.5457Cecil AvenueSouthbound entrance is via exit 56B
county line
57.5858County Line Road (SR 99 Bus. south / CR J44)
TUL 0.00-R53.94
2.0260Avenue 16Southbound exit and entrance
3.0661Avenue 24No southbound entrance
Earlimart6.1564Avenue 48 – Earlimart
7.1765AAvenue 56 (CR J22) – Ducor, AlpaughSigned as exit 65 northbound; former Legislative Route 135
7.2465BAlpaugh (Front Street)Southbound exit only; former US 99 south
9.7167Avenue 72, Avenue 76Signed as Avenue 72 southbound
10.2068Avenue 80, Avenue 76Southbound exit and northbound entrance
Pixley12.3070AAvenue 96 (CR J24) – Pixley, Terra Bella
12.8070BCourt StreetNo southbound entrance; northbound entrance is via exit 71
12.9070CPixley (Main Street)Southbound exit only
13.3371Road 124Northbound exit and entrance
15.3773Avenue 120
Tipton18.4376 SR 190 – Tipton, Porterville, Springville
19.4677Avenue 152 (CR J26) – Tipton
22.30Raine Rest Area
Tulare23.4981Avenue 184
25.4383Avenue 200 (SR 99 Bus. north)
26.05K Street (SR 99 Bus. north)Closed; former northbound left exit
27.6085Paige Avenue
28.6186Bardsley Avenue
29.5787 SR 137 (Tulare Avenue)
30.5888Hillman Street, Prosperity Avenue, Blackstone Street
31.8589M Street, Cartmill Avenue
90Oaks StreetClosed; former northbound exit and entrance
33.2291J Street (SR 99 Bus. south)No northbound exit; former US 99 south
33.9492Avenue 260, Avenue 264
Visalia36.4194Avenue 280, Caldwell Avenue (CR J30)
R38.7597 SR 198 (Sequoia Freeway) – Visalia, Sequoia National Park, Hanford, LemooreSigned as exits 96 (east) and 97 (west) northbound; SR 198 exit 101
Goshen98AAvenue 304 – GoshenClosed; former northbound exit and entrance
39.9398AAvenue 304Closed; former southbound exit and entrance
40.7998Betty Drive (CR J32)
Traver106ATraverNorthbound exit only
48.71106BMerritt Drive (CR J36) – TraverSigned as exit 106 southbound
51.81109Avenue 384 (CR J38) – WoodlakeWarlow Rest Area
R53.82111Road 12; 18th Avenue
FRE R0.00–31.61
KingsburgR0.95112 SR 201 east (Sierra Street) – Kingsburg
R2.06114Bethel Avenue, Kamm Avenue
SelmaR3.74115Mountain View Avenue (SR 99 Bus. north / CR J40)
R5.32117Second Street
6.43118 SR 43 south (Highland Avenue) / Floral Avenue (SR 99 Bus. south) – Hanford, Corcoran
Fowler9.16121Manning Avenue (SR 99 Bus. north)
11.10123AMerced StreetSigned as exit 123 northbound
11.84123BAdams Avenue (SR 99 Bus. south)Southbound exit and northbound entrance
12.40124Clovis Avenue
14.51126American AvenueSouthbound exit and northbound entrance
127Central Avenue, Chestnut Avenue
128Cedar Avenue, North Avenue
18.54130Jensen AvenueFormer SR 41 south
19.29131 SR 41 north (Yosemite Freeway) – YosemiteNorthbound exit and southbound entrance; SR 41 exit 126A southbound
19.29131 SR 41 south (Yosemite Freeway) – Lemoore, Paso RoblesNorthbound exit is via exit 130; SR 41 exit 126A northbound
20.19132AVentura Street, Kings Canyon RoadFormer SR 180 east, earlier SR 41
20.74132BFresno Street – Civic Center
21.01133AStanislaus StreetSouthbound exit and northbound entrance; former SR 180 west, earlier both directions
22.16133 SR 180 (Sequoia-Kings Canyon Freeway) – Mendota, Kings CanyonSigned as exits 133A (west) and 133B (east) southbound; SR 180 exit 57A
22.74134Belmont Avenue – Pine Flat Dam
23.30135AOlive AvenueSigned as exit 135 southbound
23.85135BMcKinley AvenueNorthbound exit and southbound entrance
24.42136AGolden State BoulevardSouthbound exit only; northbound entrance via exit 136B; former US 99 south
24.75136BClinton AvenueSigned as exit 136 northbound
26.22138ANorth Golden State BoulevardNorthbound exit and southbound entrance; former US 99 north
26.55138BAshlan AvenueSigned as exit 138 southbound
28.10140Shaw Avenue
30.48142Herndon Avenue, Grantland AvenueNorthbound exit and southbound entrance
30.99143Herndon Avenue (Golden State Boulevard)Southbound exit and northbound entrance; former US 99 south
MAD 0.00–29.36
R0.99144Avenue 7, Road 33
R3.56147Avenue 9, Road 30½, Road 31½
R7.46151Avenue 12, Road 29
Madera9.36152Almond AvenueSouthbound exit and entrance
9.49153AGateway Drive (SR 99 Bus. north)Northbound exit and southbound entrance; former US 99 north
10.27153B SR 145 (Madera Avenue) – Kerman, Firebaugh, YosemiteSigned as exit 153 southbound
11.01154Fourth Street – Central Madera
12.13155Cleveland Avenue – Millerton Lake, Yosemite
12.75156Avenue 16, Kennedy Street, Gateway Drive (SR 99 Bus. south)Gateway Drive was former US 99 south
R14.22157Avenue 17
R16.33159Avenue 18½, Road 23
BerendaR18.68162Avenue 20, Avenue 20½
20.87164Road 20, Avenue 21½
Califa22.73166 SR 152 west – Los Banos, GilroyNorthbound left exit; no northbound entrance
Chowchilla23.77167Avenue 24
24.43168Avenue 24½No access across SR 99
26.58170 SR 233 (Robertson Boulevard) to SR 152 west / Avenue 26 – Chowchilla
Minturn28.17171Road 15 – Le Grand
MER 0.00-R37.30
3.40176Plainsburg Road, Sandy Mush Road
6.72179Le Grand Road – Le Grand
MercedR11.71185Mission Avenue, Campus Parkway
13.09186AChilds Avenue, Motel Drive
13.86186B SR 140 east – Mariposa, YosemiteSouthern end of SR 140 overlap
14.08186C16th Street (SR 99 Bus. north)Northbound exit and southbound entrance
14.41187AG StreetNorthbound exit and southbound entrance
14.69187B SR 59 south (Martin Luther King Jr. Way) – Downtown Merced, Los BanosSouthern end of SR 59 overlap
15.80188 SR 59 north (V Street) / SR 140 west / R StreetNorthern end of SR 59 / SR 140 overlap
16.5418916th Street (SR 99 Bus. south)No northbound exit
18.51191Franklin RoadNorthbound exit and entrance
20.52193Atwater-Merced Expressway
Atwater21.61194Atwater Boulevard (SR 99 Bus. north)Northbound exit and southbound entrance
22.76195Applegate Road – Winton
23.46196Atwater Boulevard (SR 99 Bus. south)Southbound exit and northbound entrance
25.03198Bellevue Road, Westside Boulevard (CR J18)
27.13200Liberty Avenue, Sultana Drive
LivingstonR29.00201Hammatt Avenue
R30.38203Winton Parkway
R31.93204Collier Road
Delhi206South Avenue
R34.43207Shanks Road – Delhi
35.55208Bradbury Road
R36.34209Golden State Boulevard (SR 99 Bus. north)Northbound exit and southbound entrance
STA R0.00-R24.75
R0.30Christoffersen Rest Area
TurlockR1.63211 SR 165 (Lander Avenue, CR J14) – Central Turlock, Los Banos
R3.45213West Main Street (CR J17) – Patterson, Central Turlock
R4.54214Fulkerth Road
R5.64215Monte Vista Avenue – Denair
R6.75217Taylor Road (SR 99 Bus. south)
KeyesR7.81218Keyes Road (CR J16) – Keyes
CeresR10.04220Mitchell Road
11.30221Fourth StreetNo southbound exit
R11.91222Whitmore Avenue – Hughson
ModestoR13.26223Hatch RoadSigned as exits 223A (east) and 223B (west) northbound
R13.90224South 9th Street (SR 99 Bus. north)Southbound exit is part of exit 223; former US 99 north
R14.47225ACrows Landing Road
R15.10225BTuolumne Boulevard, B Street
R15.75226ACentral ModestoSigned as exit 226 northbound
R16.12226B SR 108 / SR 132 (Maze Boulevard) – VernalisNorthbound exit is via exit 226
R16.83227Kansas Avenue
M18.52229Carpenter Road (SR 99 Bus. south) / Briggsmore Avenue
R20.22230Beckwith Road, Standiford Avenue
R21.74232Pelandale Avenue
SalidaR22.56233 SR 219 (Kiernan Avenue) / Broadway – Salida, Riverbank
R24.27234Hammett Road
San Joaquin
SJ 0.00–38.78
Ripon0.89236Main Street
1.71237AMilgeo AvenueNorthbound exit and entrance
2.37237BJack Tone Road (CR J5)Signed as exit 237 southbound
Manteca4.89240Austin Road
Moffat BoulevardClosed; former northbound left exit
5.82241 SR 120 west to I-5 – Manteca, San FranciscoSouthern end of SR 120 overlap; SR 120 exit 6 eastbound
6.65242 SR 120 east (Yosemite Avenue) – SonoraNorthern end of SR 120 overlap
8.83244AManteca (North Main Street)Closed; former southbound exit and northbound entrance
9.18244BLathrop Road, North Main Street
11.47246French Camp Road (CR J9)
248Frontage RoadClosed
Stockton14.61250 Arch Road – Stockton Metropolitan Airport
251Clark DriveClosed; former northbound exit and entrance
16.70252AMariposa Road (SR 99 Bus. north / SR 4 Bus. west / CR J7)Former US 99 north
17.22252B SR 4 east (Farmington Road)Closed; former southern end of SR 4 overlap
252B SR 4 east (Golden Gate Avenue) – Angels CampSouthern end of SR 4 overlap
18.02253Dr. Martin Luther King Jr. BoulevardClosed; former interchange with no northbound exit; former SR 26 west / Charter Way; accessible via exit 252B
18.15253Main StreetClosed; former northbound exit only
18.68254A SR 4 west to I-5 – Downtown Stockton, San FranciscoNorthern end of SR 4 overlap; SR 4 exit 68B eastbound
19.29254B SR 26 east (Fremont Street) – Linden
20.34255 SR 88 east (Waterloo Road) – Jackson
20.88256Cherokee Road
21.67257AWilson Way (SR 99 Bus. south) – Central StocktonSouthbound exit and northbound left entrance; former US 50 west / US 99 south
21.91257BFrontage RoadClosed
22.92258Hammer Lane (CR J8)
24.03259Morada Lane
25.42260Eight Mile Road
27.50262Armstrong Road
Lodi28.48263Harney Lane
29.00264ALodi (SR 99 Bus. north)Northbound exit and southbound entrance; former US 50 east / US 99 north
29.50264B SR 12 west (Kettleman Lane) – FairfieldSouthern end of SR 12 overlap; signed as exit 264 southbound
30.97266 SR 12 east – Central Lodi, San AndreasNorthern end of SR 12 overlap
31.58267ATurner Road (SR 99 Bus. south) – LodiFormer US 50 west / US 99 south
31.72267BFrontage Road
32.57268Woodbridge Road
33.57269Acampo Road
34.58270Peltier Road (CR J12)
35.60271Jahant Road
36.67272Collier Road
37.83273Liberty Road, Frontage Road
SAC 0.12–36.86
Galt0.33274ACrystal Way, Boessow RoadNorthbound exit and entrance
0.33274AFairway DriveSouthbound exit and entrance
0.79274BCentral Galt
1.57275AElm Avenue, Simmerhorn Road (CR J10)
1.88275BPringle AvenueSouthbound exit and entrance
275BAyers LaneNorthbound exit and entrance
2.70276Walnut AvenueNo access across SR 99
3.53277 SR 104 east (Twin Cities Road, CR E13) – Jackson
4.39278Mingo RoadNorthbound exit and entrance
4.39278West Stockton BoulevardSouthbound exit and entrance
6.01280Arno Road
7.36281Dillard Road
Elk Grove8.96283Eschinger RoadSouthbound exit and entrance
10.07284Grant Line Road (CR E2), Kammerer Road
12.76286Elk Grove Boulevard (CR E12)
13.84287Laguna Boulevard, Bond Road
14.87288Sheldon Road
SacramentoJacinto RoadClosed; former southbound exit and entrance
15.90289Cosumnes River Boulevard, Calvine Road
291Stockton Boulevard, Bruceville Road, Mack RoadSigned as exits 291A (Mack Road east, Bruceville Road) and 291B (Mack Road west) southbound; Stockton Boulevard was former US 50 east / US 99 north
19.61293Florin RoadSigned as exits 293A (east) and 293B (west)
20.8629447th AvenueSigned as exits 294A (east) and 294B (west)
21.57295Martin Luther King Jr. BoulevardNorthbound exit and southbound entrance
21.94296Fruitridge RoadNorthbound exit to Fruitridge Road east is via exit 295
23.1329712th Avenue
298A US 50 (to SR 99 north) – San Francisco, South Lake TahoeNorthbound exit and southbound entrance; former I-80 west; US 50 exit 6B westbound; originally overlapped with I-80 Bus and I-5, segment deleted in 2000
24.19298BBroadway (CR J8)Northbound exit and southbound entrance; former US 50 / US 99
0.24[a]6C[b]T StreetNorthbound exit and southbound entrance
I-80 Bus. east (Capital City Freeway) – RenoNorthern end of southern section since 2000; former I-80 east
Gap in route
R32.12306 I-5 to SR 99 south – Woodland, Redding, SacramentoSouthern end of northern section; exit number is for I-5 north; I-5 exit 525B
33.36307Elkhorn Boulevard (CR E14) – Rio Linda
35.37309Elverta Road
SUT 0.00–42.39
0.95311Riego Road
Northern end of freeway
5.81316Howsley Road – Pleasant GroveInterchange
R8.07319 SR 70 north – Marysville, OrovilleInterchange; northbound exit and southbound entrance; former US 40 Alt.
11.98NicolausInterchange via connector roads[36]
20.99324 SR 113 south / East Tudor Road – WoodlandInterchange; East Tudor Road was former SR 99
Yuba CityT30.63 SR 20 (Colusa Avenue) – Colusa, Marysville
Southern end of freeway
R31.31342Queens Avenue
R33.95344Eager Road
Northern end of freeway
Butte11.16 SR 162 west – Butte City, WillowsSouthern end of SR 162 overlap
13.16 SR 162 east / Richvale Road – OrovilleNorthern end of SR 162 overlap
Southern end of freeway
21.81367 SR 149 south to SR 70 – Oroville, MarysvilleSouthbound exit and northbound entrance are on the left
23.86376Butte College, Durham
Northern end of freeway
Southern end of freeway
ChicoR30.60383Park Avenue, Skyway (SR 99 Bus. north)
R31.50384East 20th Street
R32.45385 SR 32 – Chester, Orland
R33.28386East First Avenue
R34.25387ACohasset Road, Mangrove Avenue
R34.93387BEast Avenue
R36.31389Eaton Road
Northern 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, SusanvilleNorthern terminus of SR 99
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business routes


State Route 99 Business

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. ^ "Article 2 of Chapter 2 of Division 1 of the California Streets and Highways Code". Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  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". The 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 Archive.org.
  23. ^ "Yuba to Dedicate Garden Highway". Oakland Tribune. October 17, 1924.
  24. ^ Dennis, T.H. (August 1934). "State Routes Will Be Numbered and Marked with Distinctive Bear Signs". California Highways and Public Works. 11 (8): 20–21, 32. ISSN 0008-1159 – via Archive.org.
  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 act...to 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 April 11, 2008; 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. Archived from the original (PDF) on June 3, 2019.
  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 February 7, 2009.
  35. ^ Warring, KS (January 28, 2008). "Interstate Business Loop 80 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved April 6, 2009.
  36. ^ Yune, Howard (January 19, 2011). "Last Highway 99 Upgrade on Track". Appeal-Democrat. Marysville, CA. Archived from the original on March 29, 2012.