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Interstate 580 (Nevada)
Encyclopedia
Interstate 580 in Nevada
is an unsigned Interstate Highway in northwestern Nevada
. It runs concurrently with U.S. Route 395
in Reno
, for approximately five miles between Interstate 80
and Neil Road. Two separate highway construction projects are currently underway along the US 395 corridor that will add mileage to I-580. Once completed, these new freeways will extend I-580 to the southern end of Carson City
, finally bringing an Interstate Highway to Nevada's capital city.
I-580 is still in development and will eventually be a signed Interstate Highway. The highway exists today (albeit unsigned) from I-80 near Downtown Reno south to Neil Road. The section of the US 395 freeway between Neil Road and Mount Rose Highway (SR 431) is constructed to Interstate specifications, but is not currently part of unsigned I-580. Eventually, the highway will continue in a southerly direction from Neil Road to terminate at the junction of US 395 and US 50
just south of Carson City. I-580 shields are expected to be posted once construction projects on future segments of the highway are complete. At this time, there are no indications that I-580 will be extended north of I-80, even though this portion is also built to Interstate Highway standards.
). I-580 will then use the completed Carson City Freeway to reach its eventual southern terminus south of Carson City.
The I-580 designation is expected to be posted concurrently
with US 395 from I-80 in Reno to the freeway's terminus in Carson City, once all future freeway segments are constructed. This action will bring finally bring the Interstate Highway System
to Carson City. Nevada's capital is currently one of only five State capitals to not have an Interstate Highway (the other capitals are Juneau, Alaska
, Dover, Delaware
, Jefferson City, Missouri
, and Pierre, South Dakota
).
North of Washoe Lake (Washoe Valley to Mount Rose Highway), I-580 will be built along the western hillsides of Pleasant Valley. This new highway is designed to remove the Reno/Carson City commuter traffic and Reno/South Lake Tahoe traffic from the routing of US 395 (also SR 430
) through Pleasant Valley. Currently, high traffic volumes and excessive speeding have been the cause of numerous traffic accidents and fatalities along this stretch of US 395.
The new freeway will be constructed to Interstate standards and include three travel lanes in each direction. The south half of the Mount Rose interchange will be completed, and a new Bower's Mansion Road (SR 429
) interchange will be constructed at the junction of SR 429 and SR 430 near Winters Ranch. Additionally, seven bridges will be constructed to carry the highway over existing streams and roads, the most significant of these being the Galena Creek Bridge
. Once constructed, the 1700 feet (518.2 m) Galena Creek Bridge with its 690 feet (210.3 m) span over the creek will be the longest concrete arch bridge in the United States. Construction is currently scheduled to wrap up on the project in 2011, although the new contractor on the project aims to finish the job six months ahead of schedule.
) as the connection between Reno and Lake Tahoe. The freeway will bypass downtown to the east, and connect to the junction of US 50 and US 395 south of the city (this is the eventual southern terminus of I-580). The freeway will be constructed to Interstate standards with two lanes in each direction and soundwall
s in multiple locations.
The Carson City Freeway is being built in two phases. The first phase constructed the northern half of the freeway from the Eastlake Boulevard interchange (in Washoe Valley) to US 50 east of downtown Carson City. This section was opened to traffic on February 16, 2006. US 395 was rerouted to the freeway (along with a temporary US 50 concurrency
on William Street), with old US 395 along North Carson Street being redesignated U.S. Route 395 Business.
Phase two of the project has two parts. Phase 2A constructed the central portion of the Carson City Freeway starting at US 50 and continuing south to the next interchange at Fairview Drive. A partial interchange was constructed at this location in the interim. Phase 2B will complete the remaining freeway to US 50 West, including the interchange with US 395 and South Carson Street. Construction of Phase 2A finished in September 2009; however, construction of Phase 2B may not be completed until as late as 2014 due to funding issues.
lies entirely within the city of Reno
in Washoe County
. Mileposts are assigned based upon the distance to the Washoe County/Carson City line, following the proposed routing of the I-580 Extension. Exits are numbered using cumulative mileage along US 395 from the California/Nevada border near Topaz Lake.
{| class=wikitable
!Mile
!#
!Destinations
!Notes
|-
|20.85
|62
|Neil Road
|South end of I-580
|-
|21.63
|63
|South Virginia Street (US 395 Bus.), Kietzke Lane
|Southbound exit and northbound entrance
|-
|22.69
|64
|Moana Lane
|Serves Reno-Sparks Convention Center
|-
|23.61
|65
|
Plumb Lane (SR 653), Villanova Drive – Reno-Tahoe International Airport
|Signed as exits 65A (Villanova Drive, Plumb Lane) and 65B (airport) southbound
|-
|24.59
|66
|Mill Street
|
|-
|25.12
|67
|Glendale Avenue (SR 648)
|
|-
|25.85
|68
|, Sacramento
|North end of I-580
Nevada
Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
is an unsigned Interstate Highway in northwestern Nevada
Nevada
Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
. It runs concurrently with U.S. Route 395
U.S. Route 395 in Nevada
In the U.S. state of Nevada, U.S. Route 395 clips a corner of Nevada near Lake Tahoe and serves the cities of Gardnerville, Minden, Carson City and Reno. Most of US 395 north of Carson City is a freeway and is built up to Interstate standards. Part of the freeway section is also currently...
in Reno
Reno, Nevada
Reno is the county seat of Washoe County, Nevada, United States. The city has a population of about 220,500 and is the most populous Nevada city outside of the Las Vegas metropolitan area...
, for approximately five miles between Interstate 80
Interstate 80 in Nevada
In the U.S. state of Nevada, Interstate 80 traverses the northern portion of the state. The freeway serves the Reno-Sparks metropolitan area, and also goes through the towns of Fernley, Lovelock, Winnemucca, Battle Mountain, Elko, Wells and West Wendover on its way through the state.I-80 follows...
and Neil Road. Two separate highway construction projects are currently underway along the US 395 corridor that will add mileage to I-580. Once completed, these new freeways will extend I-580 to the southern end of Carson City
Carson City, Nevada
The Consolidated Municipality of Carson City is the capital of the state of Nevada. The words Consolidated Municipality refer to a series of changes in 1969 which abolished Ormsby County and merged all the settlements contained within its borders into Carson City. Since that time Carson City has...
, finally bringing an Interstate Highway to Nevada's capital city.
Route description
U.S. Route 50 in Nevada
U.S. Route 50 is a transcontinental highway in the United States, stretching from Sacramento, California in the west to Ocean City, Maryland on the east coast. The Nevada portion crosses the center of state and was named The Loneliest Road in America by Life magazine in July 1986...
just south of Carson City. I-580 shields are expected to be posted once construction projects on future segments of the highway are complete. At this time, there are no indications that I-580 will be extended north of I-80, even though this portion is also built to Interstate Highway standards.
History
Development of the I-580/US 395 freeway has been in planning since 1957, but significant construction did not occur until over a decade later. Below is a timeline of the opening dates of the current freeway segments that are or will be part of I-580.- 1964-1970: Washoe Valley - Washoe CountyWashoe County, NevadaWashoe County is a county located in the U.S. state of Nevada. The population was 421,407 at the 2010 census. Its county seat is Reno. Washoe County includes the Reno-Sparks metropolitan area.-History:...
/Carson City line to Winters Ranch (near junction SR 429Nevada State Route 429State Route 429 is a rural state highway located in southern Washoe County, Nevada. It is named Bowers Mansion Road and is a former alignment of U.S. Route 395 .-Route description:...
) - 1973: Reno - Panther Valley (north of Reno) to Glendale Avenue (only the I-80 to Glendale Avenue stretch of this segment is designated I-580.)
- 1980: Reno - Glendale Avenue to South Virginia Street (at Exit 63 half-interchange)
- 1983: Reno - South Virginia Street to South Virginia Street (at Exit 61)
- 1983-1998: Reno - South Virginia Street to Mount Rose Highway
- 2006: Carson City - North Carson Street to East William Street (US 50)
- 2009: Carson City - East William Street (US 50) to Fairview Drive
Future
From US 395's freeway terminus at the Mount Rose Interchange in Reno, I-580 will follow a new alignment west of the current roadway in Pleasant Valley to connect with the existing freeway section in Washoe Valley (west of Washoe LakeWashoe Lake
Washoe Lake is a lake located in the Washoe Valley of Washoe County, Nevada. It is between Reno and Carson City . It is a very shallow lake, and the surface area can vary greatly from year to year.-Watershed:...
). I-580 will then use the completed Carson City Freeway to reach its eventual southern terminus south of Carson City.
The I-580 designation is expected to be posted concurrently
Concurrency (road)
A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
with US 395 from I-80 in Reno to the freeway's terminus in Carson City, once all future freeway segments are constructed. This action will bring finally bring the Interstate Highway System
Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, , is a network of limited-access roads including freeways, highways, and expressways forming part of the National Highway System of the United States of America...
to Carson City. Nevada's capital is currently one of only five State capitals to not have an Interstate Highway (the other capitals are Juneau, Alaska
Juneau, Alaska
The City and Borough of Juneau is a unified municipality located on the Gastineau Channel in the panhandle of the U.S. state of Alaska. It has been the capital of Alaska since 1906, when the government of the then-District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900...
, Dover, Delaware
Dover, Delaware
The city of Dover is the capital and second largest city in the U.S. state of Delaware. It is also the county seat of Kent County, and the principal city of the Dover, Delaware Metropolitan Statistical Area, which encompasses all of Kent County. It is located on the St. Jones River in the Delaware...
, Jefferson City, Missouri
Jefferson City, Missouri
Jefferson City is the capital of the U.S. state of Missouri and the county seat of Cole County. Located in Callaway and Cole counties, it is the principal city of the Jefferson City metropolitan area, which encompasses the entirety of both counties. As of the 2010 census, the population was 43,079...
, and Pierre, South Dakota
Pierre, South Dakota
Pierre is the capital of the U.S. state of South Dakota and the county seat of Hughes County. The population was 13,646 at the 2010 census, making it the second least populous state capital after Montpelier, Vermont...
).
I-580 Freeway Extension Project
Nevada State Route 430
State Route 430 is a major north–south state highway in Washoe County, Nevada which currently exists as two separate sections. South of Reno, the route follows the Carson-Reno Highway, and currently overlaps U.S. Route 395. In Reno, the highway follows Virginia Street, the primary...
) through Pleasant Valley. Currently, high traffic volumes and excessive speeding have been the cause of numerous traffic accidents and fatalities along this stretch of US 395.
The new freeway will be constructed to Interstate standards and include three travel lanes in each direction. The south half of the Mount Rose interchange will be completed, and a new Bower's Mansion Road (SR 429
Nevada State Route 429
State Route 429 is a rural state highway located in southern Washoe County, Nevada. It is named Bowers Mansion Road and is a former alignment of U.S. Route 395 .-Route description:...
) interchange will be constructed at the junction of SR 429 and SR 430 near Winters Ranch. Additionally, seven bridges will be constructed to carry the highway over existing streams and roads, the most significant of these being the Galena Creek Bridge
Galena Creek Bridge
The Galena Creek Bridge is a concrete arch bridge under construction south of Reno, Nevada. The bridge is part of a new freeway construction project that will connect Reno south to the state capital of Carson City via a future extension of Interstate 580....
. Once constructed, the 1700 feet (518.2 m) Galena Creek Bridge with its 690 feet (210.3 m) span over the creek will be the longest concrete arch bridge in the United States. Construction is currently scheduled to wrap up on the project in 2011, although the new contractor on the project aims to finish the job six months ahead of schedule.
Carson City Freeway
The Carson City Freeway is designed to remove through traffic from the streets of downtown Carson City, especially those using Carson Street (State Route 529Nevada State Route 529
State Route 529 is a state highway in Carson City, Nevada, USA. The route follows Carson Street, the principal north–south arterial through the city. The southern portion of the unsigned highway currently carries U.S. Route 50 and U.S. Route 395 through the city, while the remainder of the...
) as the connection between Reno and Lake Tahoe. The freeway will bypass downtown to the east, and connect to the junction of US 50 and US 395 south of the city (this is the eventual southern terminus of I-580). The freeway will be constructed to Interstate standards with two lanes in each direction and soundwall
Noise barrier
A noise barrier is an exterior structure designed to protect sensitive land uses from noise pollution...
s in multiple locations.
The Carson City Freeway is being built in two phases. The first phase constructed the northern half of the freeway from the Eastlake Boulevard interchange (in Washoe Valley) to US 50 east of downtown Carson City. This section was opened to traffic on February 16, 2006. US 395 was rerouted to the freeway (along with a temporary US 50 concurrency
Concurrency (road)
A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or other route numbers...
on William Street), with old US 395 along North Carson Street being redesignated U.S. Route 395 Business.
Phase two of the project has two parts. Phase 2A constructed the central portion of the Carson City Freeway starting at US 50 and continuing south to the next interchange at Fairview Drive. A partial interchange was constructed at this location in the interim. Phase 2B will complete the remaining freeway to US 50 West, including the interchange with US 395 and South Carson Street. Construction of Phase 2A finished in September 2009; however, construction of Phase 2B may not be completed until as late as 2014 due to funding issues.
Exit list
The current routing of I-580 as recognized by the Nevada Department of TransportationNevada Department of Transportation
The Nevada Department of Transportation is a government agency in the U.S. state of Nevada. NDOT is responsible for maintaining and improving Nevada's highway system, which includes U.S. highways and Interstate highways within the state's boundaries. The department is notable for its...
lies entirely within the city of Reno
Reno, Nevada
Reno is the county seat of Washoe County, Nevada, United States. The city has a population of about 220,500 and is the most populous Nevada city outside of the Las Vegas metropolitan area...
in Washoe County
Washoe County, Nevada
Washoe County is a county located in the U.S. state of Nevada. The population was 421,407 at the 2010 census. Its county seat is Reno. Washoe County includes the Reno-Sparks metropolitan area.-History:...
. Mileposts are assigned based upon the distance to the Washoe County/Carson City line, following the proposed routing of the I-580 Extension. Exits are numbered using cumulative mileage along US 395 from the California/Nevada border near Topaz Lake.
- Note: For other exits on US 395, see U.S. Route 395 in Nevada.
{| class=wikitable
!Mile
!#
Exit number
An exit number is a number assigned to a road junction, usually an exit from a freeway. It is usually marked on the same sign as the destinations of the exit, as well as a sign in the gore....
!Destinations
!Notes
|-
|20.85
|62
|Neil Road
|South end of I-580
|-
|21.63
|63
|South Virginia Street (US 395 Bus.), Kietzke Lane
|Southbound exit and northbound entrance
|-
|22.69
|64
|Moana Lane
|Serves Reno-Sparks Convention Center
|-
|23.61
|65
|
Plumb Lane (SR 653), Villanova Drive – Reno-Tahoe International Airport|Signed as exits 65A (Villanova Drive, Plumb Lane) and 65B (airport) southbound
|-
|24.59
|66
|Mill Street
|
|-
|25.12
|67
|Glendale Avenue (SR 648)
|
|-
|25.85
|68
|, Sacramento
|North end of I-580