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California State Route 89

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State Route 89 marker
State Route 89
Map of northern California with SR 89 highlighted in red
Route information
Maintained byCaltrans
Length243 mi[1](391 km)
Tourist
routes
RestrictionsSegments throughMonitor PassandLassen Volcanic National Parkclosed in winter
Major junctions
South endUS 395nearColeville
Major intersections
North endI-5 BLnear Mount Shasta
Location
CountryUnited States
StateCalifornia
CountiesMono,Alpine,El Dorado,Placer,Nevada,Sierra,Plumas,Tehama,Shasta,Siskiyou
Highway system
←SR 88→SR 90

State Route 89(SR 89) is astate highwayin theU.S. stateofCaliforniathat travels in the north–south direction, serving as a major thoroughfare for many mountain communities in theSierra Nevadaand theCascade Range.It starts fromU.S. Route 395nearTopaz Lake,winding its way up to the 8,314-foot (2,534 m)Monitor Pass,down to theCarson River,and up again over the 7,740-foot (2,359 m)Luther Pass.From that point on, the route generally loses elevation on its way pastLake Tahoe,throughTahoeandPlumasNational Forests untilLake Almanor.For roughly nine miles the route is then a part ofState Route 36.The route then ascends to the 5,753-foot (1,754 m)Morgan Summit.After it entersLassen Volcanic National Parkit continues to gain elevation until it reaches its highest point in an unnamed pass in the middle ofLassen PeakandBumpass Mountain.The road then descends and heads northwest, finally terminating atInterstate 5at the foot ofMount Shastaat around 3,600 feet (1,100 m).[3][4]

Route description

[edit]
Start of SR 89 atMt. Shasta

SR 89 begins at an intersection withUS 395.The highway goes west through a few switchbacks before crossing intoAlpine Countyand theHumboldt-Toiyabe National Forest.[5]The route overMonitor Passis typically closed during the winter due to snow accumulation.[6]SR 89 continues byHeenan Lakebefore intersecting with the eastern end ofSR 4and turning northwest, passing throughMarkleeville.SR 89 continues northwest to the town ofWoodfords,where it turns west, running concurrently withSR 88for a brief distance before turning intoEl Dorado County.[5]The section of SR 89 from SR 88 north to US 50 is co-signed asUS 50 Alternatefor use as a detour for when US 50 closes.[citation needed]

The highway continues north toMeyers,where it runs concurrently withUS 50into the city ofSouth Lake Tahoe.SR 89 continues along the western shore ofLake Tahoe,where it passes throughCamp Richardson,Emerald Bay,Meeks Bay,Pomins, andTahoma.After crossing intoPlacer County,SR 89 passes throughChambers Lodge,Homewood,Tahoe Pines,Skyland,Timberland,Pineland,andTahoe Tavernbefore coming to an intersection withSR 28,where SR 89 continues to the west, away from the lake. The road curves to the north throughTahoe National Forestbefore crossing intoNevada Countyand the town ofTruckee.[5]This portion of the highway has been designated the "10th Mountain Division Memorial Highway", honoring the US Army division that lost 992 soldiers during theItalian Campaign in World War II.[7]

SR 89 (South) briefly joins SR 49 (North) in Sierra County, an example of awrong-way concurrency

SR 89 runs concurrently with I-80 eastbound briefly before exiting to the north and continuing through Truckee and passing nearProsser Creek Reservoiroutside of the town limits. SR 89 continues throughHobart Millsbefore crossing intoSierra Countyand continuing northwest toRandolphandSierraville,where it shares awrong-way concurrencywithSR 49through the town ofSattley;they then intersectCR A23before SR 89 splits off to the northwest. SR 89 continues throughCalpinebefore crossing intoPlumas County.[5]

SR 89 continues throughClioandGraeaglebefore running concurrently withSR 70throughPlumas National Forest,passing throughBlairsden,Feather River Inn,Cromberg,Spring Garden,Massack(where SR 70 and 89 have arest area),East Quincy,and the city ofQuincy.SR 70 and SR 89 continue north throughKeddiebefore SR 89 splits off to the north and passes throughIndian Falls,Crescent Mills,Greenville,andCanyondam.[5]The section of SR 89 from SR 70 north to Crescent Mills was built over the abandoned railway bed of theIndian Valley Railroad.[citation needed]SR 89 intersects with the south end ofSR 147before paralleling the southern shore ofLake Almanorand running concurrently withSR 36westbound, crossing intoTehama CountyandLassen National Forest.[5]

SR 36 and SR 89 intersect the northern terminus ofSR 32andSR 172before SR 36 splits off to the west and SR 89 entersLassen Volcanic National Park.[5]The SR 89 state designation officially does not run through the national park, and this segment is directly under the park's jurisdiction instead ofCaltrans.When it is open, a park fee is charged. The segment through the park is typically closed during the winter due to very heavy snowfall and snowpack.[8]Outside the other park entrance in the northwest corner inShasta County,SR 89 forms aconcurrencywithSR 44,heading northeast toOld Station.[5]

SR 44 and SR 89 intersection

After splitting from SR 44 at Old Station, SR 89 continues north throughHat CreekandDoyles Cornerbefore intersectingSR 299.The highway passes throughFour CornersandCaytonbefore intersectingCR A19and crossing intoSiskiyou County.SR 89 briefly passes through theKlamath National Forestand Bartle andMcCloudbefore coming to an interchange withI-5.SR 89 then merges with Mount Shasta Boulevard and terminates just outside theMount Shasta Citycity limits.[5]

One point of interest along California State Route 89 includes thePony Expressremount station inWoodfords,the Lake Tahoe Outlet Gates inTahoe City(control of these gates was the source of the two-decade "Tahoe Water War" between lakeshore owners and downstreamTruckee Riverwater users),Plumas-Eureka State Park(containingJohnsville,a well-preserved '49er town, and Pioneer Ski Area, the first sportskiingarea in the Western hemisphere),Lake Almanorand Lassen Volcanic National Park.

Many other points of interest, includingBrokeoff Mountain,Sulphur Works,Emerald Lake,Lake Helen,Bumpass Hell,Lassen PeakandSummit Lakeare also located on this highway.

SR 89 is part of theCalifornia Freeway and Expressway System,[9]and north of the southern SR 44 junction is part of theNational Highway System,[10]a network of highways that are considered essential to the country's economy, defense, and mobility by theFederal Highway Administration.[11]SR 89 is eligible for theState Scenic Highway System;[12]however, it is only a scenic highway as designated by Caltrans from the El Dorado-Placer county line to a point 3.2 miles west of theUS 395junction,[13]meaning that it is a substantial section of highway passing through a "memorable landscape" with no "visual intrusions", where the potential designation has gained popular favor with the community.[14]From the junction withSR 147,through the park and including the gap on SR 44, to its terminus at I-5, SR 89 is part of theVolcanic Legacy Scenic Byway,aNational Scenic Byway.[15]The segment of SR 89 from I-80 in Truckee to SR 49 through Sattley also forms part of theYuba-Donner Scenic Byway,aNational Forest Scenic Byway.[16]

Major intersections

[edit]

Except where prefixed with a letter,postmileswere measured on the road as it was in1964,based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, seeCalifornia postmile § Official postmile definitions).[17]Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

CountyLocationPostmile
[1][17][18][19]		Exit
[20]		DestinationsNotes
Mono
MNO 0.00-7.60		​0.00US 395–Carson City,Coleville,Los AngelesSouthern terminus
​0.21Northbound winter closure gate
Alpine
ALP 0.00-23.97		​1.90[21]Monitor Pass(closed in winters),
elevation 8,314 feet (2,534 m)[21]
​9.96Southbound winter closure gate

SR 4west –Angels Camp,Stockton		SR 4 west throughEbbetts Passclosed in winters
Woodfords21.37
19.22[N 1]
SR 88east –Minden		Southern end of SR 88 overlap
​13.40[N 1]
21.38
SR 88west –Kirkwood,Jackson		Northern end of SR 88 overlap; former southern end ofUS 50 Alt.overlap
​23.65[21]Luther Pass,elevation 7,740 feet (2,360 m)[21]
El Dorado
ED 0.00-27.41		Meyers8.55
70.62[N 2]
US 50west –Placerville		Southern end of US 50 overlap; former northern end ofUS 50 Alt.overlap;roundabout
South Lake Tahoe75.45[N 2]
8.56
US 50east (Lake Tahoe Boulevard) –Stateline		Northern end of US 50 overlap
Placer
PLA 0.00-21.68		Tahoe CityT8.57
SR 28east (River Road east) –Tahoe City,Kings Beach		Roundabout
Nevada
NEV 0.00-8.70		Truckee0.49
14.16[N 3]		185
I-80west (Alan S. Hart Freeway west) / unsigned SR 89 spur to Donner Pass Road –Sacramento		Southern end of I-80 overlap;dumbbell interchange
14.97[N 3]186Central Truckee(Donner Pass Road)No northbound entrance
16.29[N 3]188ATruckee(Truckee Way)Northbound exit and southbound entrance
16.60[N 3]
R0.62		188B

I-80east (Alan S. Hart Freeway east) /SR 267south –Lake Tahoe,Reno		Northern end of I-80 overlap; interchange; westbound I-80 exit 188
Sierra
SIE 0.00-29.58		​3.75[21]Little Truckee Summit,elevation 6,399 feet (1,950 m)[21]
Sierraville15.06
SR 49north –Loyalton		Eastern end of SR 49 overlap
​19.96
SR 49south –Bassetts,Sierra City,Downieville		Western end of SR 49 overlap
Plumas
PLU 0.00-R42.19		Blairsden8.71
R66.63[N 4]
SR 70east –Portola		Southern end of SR 70 overlap
​49.80[N 4]Massack Rest Area
​33.03[N 4]
8.72
SR 70west –Oroville,Marysville		Northern end of SR 70 overlap
Canyondam29.59
SR 147north –Westwood,Susanville,Lake Almanor East Shore Peninsula
​R42.19
6.29[N 5]
SR 36east –Chester		Southern end of SR 36 overlap
Tehama
TEH R0.10-4.40		​99.94[N 5]
SR 32west –Chico
Morgan Springs91.25[N 5]
SR 172west –Mill Creek
​87.68[N 5]
R0.10
SR 36west –Red Bluff		Northern end of SR 36 overlap
Lassen Volcanic National Park4.40
0.0[N 6]		Northern end of state maintenance at the eastern park boundary
0.9[N 6]Southwest Entrance Station; park fee or annual pass required for entry[22]
Tehama–Shasta
county line		1.9[N 6][8]–
28.0[N 6][8]		Segment one mile from each park entrance is typically closed in winters[8]
Shasta
SHA 0.00-43.35		29.0[N 6]Manzanita Lake Entrance Station; park fee or annual pass required for entry[22]
29.6[N 6]
R49.35[N 7]		Southern end of state maintenance at the western park boundary
​
SR 44west –Redding		Southern end of SR 44 overlap
Old Station62.69[N 7]
0.00
SR 44east –Susanville,Reno		Northern end of SR 44 overlap
​21.72SR 299–Fall River Mills,Alturas,Burney,Redding
Siskiyou
SIS 0.00-R34.62		​R34.62I-5–PortlandInterchange; northbound exit and southbound entrances, no exit to I-5 south;I-5exit 736
​


I-5 BLsouth toI-5south –Redding		Interchange; northern terminus; no access to/from I-5 BL north
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^abIndicates that the postmile represents the distance alongSR 88rather than SR 89.
  2. ^abIndicates that the postmile represents the distance alongUS 50rather than SR 89.
  3. ^abcdIndicates that the postmile represents the distance alongI-80rather than SR 89.
  4. ^abcIndicates that the postmile represents the distance alongSR 70rather than SR 89.
  5. ^abcdIndicates that the postmile represents the distance alongSR 36rather than SR 89.
  6. ^abcdefIndicates that the mileage represents the distance insideLassen Volcanic National Park,where no state maintenance exists.
  7. ^abIndicates that the postmile represents the distance alongSR 44rather than SR 89.

See also

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References

[edit]
  1. ^abCalifornia Department of Transportation (July 2007)."Log of Bridges on State Highways".Sacramento: California Department of Transportation.
  2. ^California Department of Transportation (August 2019)."Officially Designated State Scenic Highways and Historic Parkways"(XLSX).Sacramento: California Department of Transportation.RetrievedMarch 27,2019.
  3. ^Google Earthelevation forGNIScoordinates.
  4. ^California State Map, 2007.
  5. ^abcdefghiCalifornia Road Atlas(Map). Thomas Brothers. 2008.
  6. ^"Winter Driving Tips".Caltrans.RetrievedJanuary 2,2023.
  7. ^California Department of Transportation; California State Transportation Agency (January 2021).2020 Named Freeways, Highways, Structures and Other Appurtenances in California(PDF).Sacramento: California Department of Transportation. pp. 53, 221. Archived fromthe original(PDF)on October 10, 2022.
  8. ^abcd"Lassen Volcanic National Park Alerts & Conditions".National Park Service.RetrievedJanuary 2,2023.
  9. ^"Article 2 of Chapter 2 of Division 1".California Streets and Highways Code.Sacramento: California Office of Legislative Counsel.RetrievedFebruary 6,2019.
  10. ^Federal Highway Administration (March 25, 2015).National Highway System: California (North)(PDF)(Map). Scale not given. Washington, DC: Federal Highway Administration.RetrievedOctober 8,2017.
  11. ^Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012)."What is the National Highway System?".National Highway System.Washington, DC: Federal Highway Administration.RetrievedJuly 1,2012.
  12. ^"Article 2.5 of Chapter 2 of Division 1".California Streets & Highways Code.Sacramento: California Office of Legislative Counsel.RetrievedFebruary 6,2019.
  13. ^California Department of Transportation (August 2019)."Officially Designated State Scenic Highways and Historic Parkways"(XLSX).Sacramento: California Department of Transportation.RetrievedOctober 8,2017.
  14. ^California Department of Transportation (2012).Scenic Highway Guidelines(PDF).Sacramento: California Department of Transportation. p. 5.RetrievedJune 8,2017.
  15. ^"Volcanic Legacy Scenic Byway web site".RetrievedMay 13,2019.
  16. ^Federal Highway Administration(n.d.)."Yuba-Donner Scenic Byway".America's Byways.Federal Highway Administration. Archived fromthe originalon October 23, 2011.RetrievedOctober 23,2011.
  17. ^abCalifornia Department of Transportation."State Truck Route List".Sacramento: California Department of Transportation. Archived fromthe original(XLS file)on September 5, 2015.RetrievedJune 30,2015.
  18. ^California Department of Transportation,All Traffic Volumes on CSHS,2005 and 2006
  19. ^"Overview of SR 89 through Lassen Natl. Park".Google Maps.Google, Inc.RetrievedMarch 22,2021.
  20. ^California Department of Transportation,California Numbered Exit Uniform System,Interstate 80 Freeway Interchanges,Retrieved on 2009-02-14.
  21. ^abcdef"Elevation and Location of Summits and Passes in California".California Department of Transportation. Archived fromthe originalon March 1, 2017.
  22. ^ab"Lassen Volcanic National Park Fees & Passes".National Park Service.RetrievedDecember 31,2021.
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