State Route 70 in California
| SR-70 | |||
| Get started | sacramento | ||
| End | Beckwourth Pass | ||
| Length | 179 mi | ||
| Length | 287 km | ||
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According to biotionary.com, State Route 70 is a state route and partial freeway in the U.S. state of California. The road has two divergent functions, a major north-south route between Sacramento and Oroville that is part freeway, and a mountain route in northeastern California. State Route 70 is 287 kilometers long.
Travel directions
State Route 70 branches off from State Route 99 just north of Sacramento, and is initially a 12-kilometer freeway. This is followed by some level crossings, where the SR-70 is a 2×2 divided highway. Between Plumas Lake and Marysville, the road is again a 2×2 lane freeway. There is an interchange with State Route 65. The highway ends in the middle of Marysville, after which the road runs as a city road through the center and then becomes a single carriageway until just south of Oroville. Around Oroville, State Route 70 is a freeway for the third and final time, until an interchange with State Route 149, where SR-70 exits the highway.
State Route 70 is a secondary road after that, passing through the Sierra Nevada, which has peaks above 2,000 meters. The SR-70 runs through a long canyon and hardly visits larger places. Via Quincy the road runs to the southeast, later eastwards, after which one reaches a flatter area after Portola. State Route 70 then terminates at a junction with US 395 near the Nevada border.
History
State Route 70 was built through the Feather River Canyon and was one of the historic east-west routes through the Sierra Nevada. This road was built between 1928 and 1937.
The highway section at Marysville was opened in 1956. This is one of the older highway routes outside a major city in northern California. In 1967, the highway was extended south to Plumas Lake, although the grade separation at Plumas Lake didn’t open until 2008. In 1963, the freeway was also built at Oroville. In 2009 the southernmost freeway section opened around Nicolaus.
Opening history
| From | Unpleasant | Length | Date |
| 17 | 21 Marysville | 7 km | 00-00-1956 |
| 46 Oroville Dam Road | 53 | 12 km | 00-00-1963 |
| 12 Plumas Lake | 17 | 8 km | 00-00-1967 |
| 0 | 4 East Nicholas | 6 km | 00-00-2009 |
Future
There are two more intersections between SR-99 and Marysville. If these are made grade separated, the SR-70 will be a freeway over 35 kilometers.
Traffic intensities
Every day, 15,000 to 16,000 vehicles drive between SR-99 and Lake Plumas, rising to 58,000 vehicles in Marysville. The single-lane section between Marysville and Oroville has 14,000 vehicles, increasing to 26,000 vehicles on the freeway section in Oroville itself. 22,000 vehicles continued to the SR-149 interchange.
The route through the Feather River Canyon handles significantly less traffic, large parts handle no more than 1,500 to 2,000 vehicles per day. At Quincy, with 8,000 vehicles, this is a bit higher. Further east, 4,000 vehicles ran between Portola and US 395.
State Route 71 in California
| SR-71 | |||
| Get started | Corona | ||
| End | pomona | ||
| Length | 16 mi | ||
| Length | 26 km | ||
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State Route 71 or SR-71 is a state route in the U.S. state of California. The highway forms a north-south route in the so-called Inland Empire of Los Angeles, its eastern suburbs. The highway begins in Corona, and runs to Pomona, and is also known as the Chino Valley Freeway. The road is 26 kilometers long.
Travel directions
The highway begins in Corona, at the interchange with SR-91 or Riverside Freeway, which runs from Anaheim to Riverside. One soon arrives at Chino Hills, a sparsely built-up suburb, located in the hills of the same name. As a result, a densely built-up city with such differences in height is not possible. To the west is Chino Hills, and to the east of the highway is the city of Chino. Its north side intersects with SR-60 or Pomona Freeway, which runs from Los Angeles to Riverside. After this you arrive in the city of Pomona, which has 161,000 inhabitants. In Pomona, the SR-71 becomes part of the street network, with traffic lights. On the north side of Pomona, the road becomes a freeway again, ending at I-10 or San Bernardino Freeway, which runs from Los Angeles to San Bernardino and Phoenix.
History
SR-71 is a relatively young highway, built in the 1970s in Pomona, and extended to the Riverside Freeway at Corona in 1998. The section between Chino Hills and Corona often has dense fog, and pileups are quite common. The part through Pomona is not designed as a highway.
Future
There are wishes to develop State Route 71 through Pomona as a freeway, because traffic from Riverside to Los Angeles no longer has to take this main road or through Diamond Bar. The intersection between the Pomona Freeway and Orange Freeway in Diamond Bar is incomplete, only State Route 71 can lead directly onto Interstate 10 toward Los Angeles.
HOV
The Chino Valley Freeway has HOV lanes between SR-60 in Pomona and Euclid Avenue in southern Chino, about eight miles. The HOV facility is somewhat striking given the relatively limited importance of the highway, and the fact that the HOV lane is already the 3rd lane, and the available road capacity is not used efficiently.
History
It is not known when the HOV lanes were constructed exactly, possibly at the same time as the HOV lanes on the Pomona Freeway in 1999.
Traffic intensities
| Exit | Location | 2008 | 2012 | 2016 |
| Exit 1 | Corona ( SR-91 ) | 55,000 | 62,000 | 70,000 |
| exit 12 | Chinos ( SR-60 ) | 73,000 | 97,000 | 101,000 |
| Exit 15 | Pomona ( I-10 | 75,000 | 75,000 | 92,000 |
