Oakdale and Tracy Bypass
(SF Bay Area to Tioga or Sonora Pass)
Revised July 2005 - please send updates to the webmaster
This file shows you to the western approach for Tioga Pass and Sonora Pass.
There are three GPS routes in this file: The first route (OAKDALE NORMAL) represents the best choice for light traffic days. It is 19 miles shorter than the MACRO BYPASS route but may be faster when Tracy, Escalon, and Oakdale have stop-and-go traffic. The second rout (OAKDALE BYPASS) just gets you around the town of Oakdale, using Rodden Road to the north. The third route (MACRO BYPASS) winds around farm roads to avoid most towns, skirting south of Oakland and Tracy, and skirting north of Modesto.
This map is a close-up of the area around Oakdale, see the map above for context:
Here's an overview of the route:
Take I-580 east from Livermore, and stay on it toward I-5 at waypoint 205580, avoiding Tracy. Before reaching I-5, turn west on Hwy 132 (waypoint 132508), and head for Modesto.
Cross I-5 at waypoint 132005, and turn left (north) on N Gates Rd about halfway to Modesto (waypoint GAT132). Follow Gates north, then turn east (right) on Bacon Rd (waypoint BACGAT). There are lots of farm roads here, but they don't all go through! Go one intersection east on Bacon, then turn north (left) on Dunn Rd (waypoint DUNBAC). Go one intersection north on Dunn, then turn east (right) on Kiernan Ave (waypoint KIRDUN).
You have to go over Hwy 99 in Salida, and while there are a couple of turns close together it's not all that confusing. Go SE on Salida Blvd (waypoint SALKIR), then turn left (NE) on Broadway (waypoint BROSAL) toward the obvious overpass (waypoint BROD99). Bear east, once again on Kiernan, at waypoint KIRBRO. (Kiernan does NOT go under the freeway, but it looks like it does.)
Continue east across Hwy 108, where Kiernan changes name to Claribel Rd (waypoint KIRNAN). Stay on Claribel until you turn left (north) on Smith Rd (wayopint CLARIB). Jog left (west) on Warnerville Rd between waypoints SMITHR and WARNER, then continue north on Stearns Rd. Turn right (east) on Sierra Rd (waypoint STEARN) until it ends at Wamble Rd (waypoint SIERRA), then go north (left) to Hwy 120 at waypoint WAMBLE.
You have two choices at WAMBLE: You can turn right (east) on Hwy 120, or you can cross the highway and take Orange Blossom (waypoints WAMORG and ORANGE) and Lancaster Rd (waypoints LANCS2 and LANCST) to avoid another 2 miles of Hwy 120. The Lancaster option requires crossing the highway twice, so it's probably not all that great!