| State: | CA |
| Type: | SR |
| Route: | 229 |
| Map Notes: | Map of San Luis Obispo County in southern California with SR 229 highlighted in red |
| Section: | 529 |
| Length Mi: | 9.160 |
| Length Round: | 3 |
| Direction A: | South |
| Terminus A: | near Atascadero |
| Direction B: | North |
| Terminus B: | near Creston |
| Counties: | San Luis Obispo |
| Previous Type: | SR |
| Previous Route: | 227 |
| Next Type: | SR |
| Next Route: | 232 |
State Route 229 (SR 229) is a state highway in the U.S. state of California, running in San Luis Obispo County from State Route 58 to State Route 41. It connects the small community of Creston with the rural state routes. Also, in conjunction with SR 58 and SR 41, it provides a slower, more scenic route between the Central Coast and the San Joaquin Valley.
SR 229 starts at SR 58 east of Santa Margarita. It travels north on Webster Road as a one-lane, windy mountain road, after which the road widens to two lanes as it approaches Rocky Canyon Road. In this segment, it is a county road much like a standard rural state route. It continues north through relatively flat, rural farmland and then passes through the small town of Creston, continuing north and terminating at SR 41.
SR 229 is not part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.
SR 229 was adopted as a state route in 1933 as Legislative Route 137. It was an unsigned highway running from LRN 2 (currently US 101) near Santa Margarita to LRN 125 (formally US 466, currently SR 41).[1] Its original purpose was to provide an alternate route between US 101 (the major north-south route on the Central Coast) to US 466 (a major route connecting the Central Coast to the San Joaquin Valley). In the 1950s, US 466 was moved to LRN 33 (currently SR 46). The original alignment became unsigned. In 1957, LRN 137 was changed to start at LRN 58 (currently SR 58) instead of LRN 2. This isolated the route between two rural routes. In 1964, with the renumbering of California state routes, LRN 137 became SR 229 and became a signed route.[2] It has changed little since that time.