Ranch to Market Road 620 (RM 620) is a ranch to market road in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

maintained by the Texas Department of Transportation (TxDOT). The road begins at SH 71 in Bee Cave in

Travis County Travis County is located in south central Texas. As of the 2020 census, the population was 1,290,188. It is the fifth-most populous county in Texas. Its county seat is Austin, the capital of Texas. The county was established in 1840 and is na ...

west of

Austin Austin is the capital city of the U.S. state of Texas, as well as the seat and largest city of Travis County, with portions extending into Hays and Williamson counties. Incorporated on December 27, 1839, it is the 11th-most-populous city ...

passing along southeastern

Lake Travis Lake Travis is a reservoir on the Colorado River in central Texas in the United States. Serving principally as a flood-control reservoir, Lake Travis' historical minimum to maximum water height change is nearly 100 feet. In 2018 alone, it saw ...

, western Austin, and several suburban communities west and north of Austin before ending at Bus. I-35-L in

Round Rock Round Rock is a city in the U.S. state of Texas, in Williamson County, Texas, Williamson County (with a small part in Travis County, Texas, Travis County), which is a part of the Greater Austin metropolitan area. Its population is 119,468 as of ...

in Williamson County. The road has major intersections with

I-35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexican border ...

, US 183, and SH 45.

History

RM 620 was originally designated on July 9, 1945 as Farm to Market Road 620 (FM 620) from Round Rock to SH 29, the former designation of US 183 south of Liberty Hill until May 23, 1951. On May 13, 1946, the road was extended to the Travis County line. On August 26, 1948, the road was extended to the former community of Hickmuntown, also called Four Points, at the location of the current intersection with RM 2222. The road was completed on December 17, 1952 when it was extended to SH 71, known locally before August 31, 1965 as RM 93 (but was signed as SH 71 since October 31, 1955). The road received its Ranch to Market designation on October 1, 1956. The SH 45

toll road A toll road, also known as a turnpike or tollway, is a public or private road (almost always a controlled-access highway in the present day) for which a fee (or ''toll'') is assessed for passage. It is a form of road pricing typically implemented ...

running along a portion of RM 620 opened in 2006. On February 28, 2013, the section from IH-35 to BI 35-L was cancelled and given to the city of Round Rock, along with part of BI 35-L itself. On June 27, 2019, RM 620 Spur was designated from RM 620 northeast to RM 2222 along the westernmost portion of PASS 1402 (Arterial 8); however, RM 620 Spur has not been constructed yet. On June 27, 1995 the internal designation of the route was changed to Urban Road 620 (UR 620); the designation reverted to RM 620 with the elimination of the Urban Road system on November 15, 2018.

Route description

The western terminus of RM 620 is at SH 71 in Bee Cave in Travis County. From there, it travels north through the city of Lakeway, following along southeastern Lake Travis until it crosses the

Colorado River The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid drainage basin, watershed that encompasses parts of ...

Mansfield Dam Mansfield Dam (formerly Marshall Ford Dam) is a dam located across a canyon at Marshall Ford on the Colorado River, northwest of Austin, Texas. The groundbreaking ceremony occurred on February 19, 1937, with United States Secretary of the Interi ...

near Marshall Ford. To the northeast, RM 620 enters the city of Austin and intersects RM 2222. The road then intersects RM 2769 just inside the Williamson County line. To the east, the road travels concurrently with the free service roads of the SH-45 toll road crossing US-183, the 183A Toll Road, and FM 734 before separating from SH 45 and entering Round Rock. The road intersects I-35 before terminating at Bus. I-35-L in Round Rock. The western segment of RM 620 between SH 71 and RM 2769 is designated a scenic roadway by the City of Austin.

Major intersections

References

{{Austin Streets 0620 Transportation in Austin, Texas Transportation in Travis County, Texas Transportation in Williamson County, Texas