State Route 21 (SR 21) is a
state highway
A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either Route number, numbered or maintained by a sub-national state or province. A road numbered ...
in the U.S. state of
Washington
Washington most commonly refers to:
* George Washington (1732–1799), the first president of the United States
* Washington (state), a state in the Pacific Northwest of the United States
* Washington, D.C., the capital of the United States
** A ...
that traverses four counties:
Franklin
Franklin may refer to:
People and characters
* Franklin (given name), including list of people and characters with the name
* Franklin (surname), including list of people and characters with the name
* Franklin (class), a member of a historic ...
,
Adams
Adams may refer to:
* For persons, see Adams (surname)
Places United States
*Adams, California
*Adams, California, former name of Corte Madera, California
* Adams, Decatur County, Indiana
*Adams, Kentucky
*Adams, Massachusetts, a New England to ...
,
Lincoln
Lincoln most commonly refers to:
* Abraham Lincoln (1809–1865), the 16th president of the United States
* Lincoln, England, cathedral city and county town of Lincolnshire, England
* Lincoln, Nebraska, the capital of Nebraska, U.S.
* Lincoln (na ...
and
Ferry
A ferry is a boat or ship that transports passengers, and occasionally vehicles and cargo, across a body of water. A small passenger ferry with multiple stops, like those in Venice, Italy, is sometimes referred to as a water taxi or water bus ...
. The highway extends from an intersection with
SR 260 in
Kahlotus north through
Lind
Lind is a surname of both Swedish and Estonian origin. In Swedish, it is the word for the linden tree. In Estonian, it is the word for bird.
Geographical distribution
As of 2014, 36.1% of all known bearers of the surname ''Lind'' were resid ...
,
Odessa
ODESSA is an American codename (from the German language, German: ''Organisation der ehemaligen SS-Angehörigen'', meaning: Organization of Former SS Members) coined in 1946 to cover Ratlines (World War II aftermath), Nazi underground escape-pl ...
,
Clark
Clark is an English language surname with historical links to England, Scotland, and Ireland, ultimately derived from the Latin ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated ...
,
Keller,
Republic
A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
and
Curlew
The curlews () are a group of nine species of birds in the genus ''Numenius'', characterised by their long, slender, downcurved bills and mottled brown plumage. The English name is imitative of the Eurasian curlew's call, but may have been infl ...
before becoming
Highway 41 (BC 41) at the
Canadian border
The borders of Canada include:
* To the south and west: An international boundary with the United States, forming the Canada–United States border, longest shared border in the world, ; (Informally referred as the 49th parallel north which make ...
in
Danville. SR 21 is
concurrent
Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to:
Law
* Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea''
* Concurring opinion (also called a "concurrence"), a ...
with
U.S. Route 2 (US 2) in Wilbur and
SR 20 in Republic and has two
diamond interchange
A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road.
Design
The freeway itself is grade separation, grade-separated from the minor road, one crossing the other over a bridge. ...
s at
US 395 in Lind and
Interstate 90
Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at . It begins in Seattle, Washington, Seattle, Washington, and travels through the Pacific Northwest, Mountain states, Mou ...
(I-90) south of Odessa. Between Lincoln and Ferry counties, the roadway crosses
Franklin D. Roosevelt Lake
Franklin D. Roosevelt Lake (also called Lake Roosevelt) is the reservoir created in 1941 by the impoundment of the Columbia River by the Grand Coulee Dam in Washington state. It is named for Franklin D. Roosevelt, who was president during the ...
on the
Keller Ferry
The Keller Ferry, historically the Clark Ferry, is a ferry crossing on Franklin D. Roosevelt Lake in the US state of Washington. The crossing carries State Route 21 between the Colville Indian Reservation in Ferry County and Clark in Lincoln Co ...
, operated fare free by the
Washington State Department of Transportation
The Washington State Department of Transportation (WSDOT or WashDOT, both ) is a governmental agency that constructs, maintains, and regulates the use of transportation infrastructure in the U.S. state of Washington (state), Washington. Establi ...
(WSDOT) and the
Department of Highways (DoH) since 1930.
Since 1899, at least one segment of the current highway has been in the state highway system. In 1899, the
Marble Mount Road was established and later numbered
State Road 4 in 1905 and renamed to the
Sans Poil-Loomis Road in 1907. In 1915, a branch to the Canadian border was added to the highway, but was removed in 1923. In 1937, the
Primary state highways were established and State Road 4 became
Primary State Highway 4 (PSH 4), while the former Canadian branch became Secondary State Highway 4A (SSH 4A). Another highway, extending from Lind to Wilbur, became SSH 4B. In 1964, PSH 4 was split into SR 20 and SR 21 while SSH 2A and SSH 2B also became SR 21. In 1983, a road between Lind and Kahlotus became part of SR 21.
The Keller Ferry, which travels across the
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
at Franklin D. Roosevelt Lake to connect the two segments of SR 21, was originally a private
cable ferry
A cable ferry (including the types chain ferry, swing ferry, floating bridge, or punt) is a ferry that is guided (and in many cases propelled) across a river or large body of water by cables connected to both shores. Early cable ferries often ...
operated in the early 1890s. In 1929, the Ferry and Lincoln counties unveiled a new eight-car cable ferry, named the ''Keller of Seattle'', which served the two counties until 1930. The state highway department took over operations of the ferry in 1930 and replaced the vessel with various boats until a permanent ferry, the ''Martha S.'', was launched in 1948. The ''Martha S.'' would go on to serve until 2013, when it was retired and replaced with the more modern .
Route description
SR 21 originates at an intersection with , about west of the northern terminus of ;
both intersections are in the city of
Kahlotus, which is located in a narrow valley near several
coulee
Coulee, or coulée ( or ), is any of various different landforms, all of which are kinds of valleys or drainage zones. The word ''coulee'' comes from the Canadian French ''coulée'', from French ''couler'' 'to flow'.
The term is often used ...
s in
Franklin County. After leaving Kahlotus as the Lind–Kahlotus Road, the highway turns northeast and later west as it passes over the Sand Hills Coulee four times. Curving due north, the roadway leaves Franklin County to enter
Adams County. Passing farmland in the flat landscape, SR 21 intersects and continues through an unnamed coulee to intersect Smart Road. Smart Road was the former alignment of SR 21 prior to the (US 395) interchange being built. SR 21 intersects US 395 in a
diamond interchange
A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road.
Design
The freeway itself is grade separation, grade-separated from the minor road, one crossing the other over a bridge. ...
east of Downtown
Lind
Lind is a surname of both Swedish and Estonian origin. In Swedish, it is the word for the linden tree. In Estonian, it is the word for bird.
Geographical distribution
As of 2014, 36.1% of all known bearers of the surname ''Lind'' were resid ...
.
From the interchange, the highway travels west and intersects Smart Road again before crossing over the Centennial Trail and entering Downtown Lind. In Downtown, the roadway is named Second, I and First Streets and serves as the main connector to other areas. After turning north to leave Lind, the road encounters the
Palouse to Cascades State Park Trail
The Palouse to Cascades State Park Trail, formerly known as the John Wayne Pioneer Trail and the Iron Horse Trail, is a rail trail that spans most of the U.S. state of Washington. It follows the former railway roadbed of the Chicago, Milwaukee ...
and more plains before intersecting the pre-interstate alignment of (I-90) and interchanging with I-90 at exit 206, another diamond interchange.
North of the interchange, SR 21 travels through more plains and a coulee to leave Adams County and enter
Lincoln County.
In Lincoln County, the highway travels through farmland to encounter
Odessa
ODESSA is an American codename (from the German language, German: ''Organisation der ehemaligen SS-Angehörigen'', meaning: Organization of Former SS Members) coined in 1946 to cover Ratlines (World War II aftermath), Nazi underground escape-pl ...
as Division Street, intersecting . The roadway turns northwest at Pacific Lake and reverts northwards into farmland. After temporarily turning east into more farmland, the road enters
Wilbur, named Bruce Avenue. In Wilbur, SR 21 turns west,
concurrent
Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to:
Law
* Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea''
* Concurring opinion (also called a "concurrence"), a ...
with , for before branching off north to intersect and leave Wilbur over rolling farmland. North of Wilbur, the roadway enters the top of Speigle Canyon and makes a winding descent before exiting at the floor of the canyon and nearing
Franklin D. Roosevelt Lake
Franklin D. Roosevelt Lake (also called Lake Roosevelt) is the reservoir created in 1941 by the impoundment of the Columbia River by the Grand Coulee Dam in Washington state. It is named for Franklin D. Roosevelt, who was president during the ...
; at , the lake is the largest in Washington.
Paralleling the lake, the road then uses the
Keller Ferry
The Keller Ferry, historically the Clark Ferry, is a ferry crossing on Franklin D. Roosevelt Lake in the US state of Washington. The crossing carries State Route 21 between the Colville Indian Reservation in Ferry County and Clark in Lincoln Co ...
, an long boat used as a fare-free ferry across Franklin D. Roosevelt Lake, part of the
Lake Roosevelt National Recreation Area, operated by the
Washington State Department of Transportation
The Washington State Department of Transportation (WSDOT or WashDOT, both ) is a governmental agency that constructs, maintains, and regulates the use of transportation infrastructure in the U.S. state of Washington (state), Washington. Establi ...
(WSDOT) and its previous counterparts since 1930.

The ferry travels across the Lincoln County line to enter
Ferry County, named after
Elisha P. Ferry, the first
Washington governor,
southwest of
Keller in the
Colville Indian Reservation
The Colville Indian Reservation is an Indian reservation located in Washington (state), Washington state, U.S. It is inhabited and managed by the Confederated Tribes of the Colville Reservation, which are List of federally recognized tribes in ...
.
Traveling northeast, between the
Sanpoil River
The Sanpoil River (also spelled San Poil) is a tributary of the Columbia River, in the U.S. state of Washington. The river is named for the Sanpoil, the Interior Salish people who live along the river course. The name is from the Okanagan ...
and the southern end of the
Okanagan Highlands
The Okanagan Highland is an elevated hilly plateau area in British Columbia, Canada, and the U.S. state of Washington (where it is spelled Okanogan Highlands). Rounded mountains with elevations up to above sea level and deep, narrow valleys a ...
, SR 21 passes
Keller and continues inland into the
Columbia Mountains
The Columbia Mountains are a group of mountain ranges along the Upper Columbia River in British Columbia, Montana, Idaho and Washington (state), Washington. The mountain range covers 135,952 km² (52,491 sq mi). The range is bounded by th ...
on the
banks
A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets.
As banks ...
of the river. The river forms a canyon that the highway passes through and eventually both the river and road leave the Colville Indian Reservation. Shortly after leaving the reservation, the roadway enters
Republic
A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
and becomes concurrent with for before exiting the concurrency and Republic. Between Republic and the
Canada–US border, an estimated
daily average of 1,600 motorists used this segment of SR 21, making this section the busiest. The daily average has declined since 2006 and 2007, when a daily average of 1,700 motorists utilized the segment.
Northeast of Republic, the highway passes
Curlew Lake, the
Curlew Lake State Park and the communities of
Malo and
Curlew
The curlews () are a group of nine species of birds in the genus ''Numenius'', characterised by their long, slender, downcurved bills and mottled brown plumage. The English name is imitative of the Eurasian curlew's call, but may have been infl ...
.
After passing through more dense forests, the roadway enters
Danville, where SR 21 crosses the Canada–US border into
British Columbia
British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
as (BC 41).
BC 41 continues north to end at southwest of
Grand Forks, BC.
History

SR 21 originated as the
Marble Mount Road that extended from the north end of the
Keller Ferry
The Keller Ferry, historically the Clark Ferry, is a ferry crossing on Franklin D. Roosevelt Lake in the US state of Washington. The crossing carries State Route 21 between the Colville Indian Reservation in Ferry County and Clark in Lincoln Co ...
to
Republic
A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
and was established in 1899.
The Marble Mount Road was later numbered in 1905 and renamed to the
Sans Poil-Loomis Road in 1907.
An extension of State Road 4 from Republic to the
Canada–US border existed from 1915 until 1923.
When the
Primary and secondary highway system was established in 1937, (PSH 4) replaced State Road 4 and was extended south from the Keller Ferry to
Wilbur. The Canada–US border branch of State Road 4 that was deleted in 1923 was re-added as Secondary State Highway 4A (SSH 4A) and a highway extending south from Wilbur to
Lind
Lind is a surname of both Swedish and Estonian origin. In Swedish, it is the word for the linden tree. In Estonian, it is the word for bird.
Geographical distribution
As of 2014, 36.1% of all known bearers of the surname ''Lind'' were resid ...
became SSH 2B.
All three roadways were later combined as SR 21 in a
highway renumbering in 1964.
In 1983, SR 21 was extended south to in
Kahlotus.
Since 1983, the road has not been realigned with the exception of the (US 395) interchange in Lind.
A proposal to remove the Kahlotus–Lind section of the highway was considered by a legislative committee in 1986. The
speed limit
Speed limits on road traffic, as used in most countries, set the legal maximum speed at which vehicles may travel on a given stretch of road. Speed limits are generally indicated on a traffic sign reflecting the maximum permitted speed, express ...
between
Curlew Lake State Park and
the community of the same name was temporarily lowered on March 9, 2009 to due to cracks in the pavement.
The speed limit was restored to on March 30, 2009.
Keller Ferry history

The Keller Ferry connects SR 21 between
Lincoln
Lincoln most commonly refers to:
* Abraham Lincoln (1809–1865), the 16th president of the United States
* Lincoln, England, cathedral city and county town of Lincolnshire, England
* Lincoln, Nebraska, the capital of Nebraska, U.S.
* Lincoln (na ...
and
Ferry
A ferry is a boat or ship that transports passengers, and occasionally vehicles and cargo, across a body of water. A small passenger ferry with multiple stops, like those in Venice, Italy, is sometimes referred to as a water taxi or water bus ...
counties, which are separated by
Franklin D. Roosevelt Lake
Franklin D. Roosevelt Lake (also called Lake Roosevelt) is the reservoir created in 1941 by the impoundment of the Columbia River by the Grand Coulee Dam in Washington state. It is named for Franklin D. Roosevelt, who was president during the ...
. The ferry originated as an oar-propelled canoe that was used by Native Americans prior to the late 19th century. In the early 1890s a four-car
cable ferry
A cable ferry (including the types chain ferry, swing ferry, floating bridge, or punt) is a ferry that is guided (and in many cases propelled) across a river or large body of water by cables connected to both shores. Early cable ferries often ...
, owned and operated by Todd Clark and William Robertson, was established. After the town of
Keller was established north / upriver on the
Sanpoil River
The Sanpoil River (also spelled San Poil) is a tributary of the Columbia River, in the U.S. state of Washington. The river is named for the Sanpoil, the Interior Salish people who live along the river course. The name is from the Okanagan ...
in 1898, J.C. Keller, the founder of the town, purchased the cable ferry in 1899.
In 1925, Lincoln and Ferry counties jointly purchased Keller's ferry and in 1929 replaced the original ferry with an eight-car cable ferry that was later named ''Keller of Seattle''.
The
Department of Highways (DoH), the predecessor to the modern-day
Washington State Department of Transportation
The Washington State Department of Transportation (WSDOT or WashDOT, both ) is a governmental agency that constructs, maintains, and regulates the use of transportation infrastructure in the U.S. state of Washington (state), Washington. Establi ...
(WSDOT), purchased the ferry on September 1, 1930 and ran it toll-free as it is today.
The original location of the ferry was flooded between 1939 and 1940 after the damming of the
Grand Coulee Dam
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhous ...
west / downriver on the
Columbia River
The Columbia River (Upper Chinook language, Upper Chinook: ' or '; Sahaptin language, Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river headwater ...
created Franklin D. Roosevelt Lake. In July 1939, the ''L.A. McLeod'' was launched and replaced the earlier cable ferries.
Between 1944 and 1948, the ''Ann of Wilbur'', a
tug boat
A tugboat or tug is a marine vessel that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These boats typically tug ships in circumstances where they cannot or should not move under their own power, such ...
, tugged the ''Sanpoil''
barge
A barge is typically a flat-bottomed boat, flat-bottomed vessel which does not have its own means of mechanical propulsion. Original use was on inland waterways, while modern use is on both inland and ocean, marine water environments. The firs ...
that was used as a temporary replacement for the ''McLeod''.
On September 9, 1948, the ''Martha S.'' was launched and has been in continual operation since.
Since the ''Martha S.'' is over seventy years old, the
United States Coast Guard
The United States Coast Guard (USCG) is the maritime security, search and rescue, and Admiralty law, law enforcement military branch, service branch of the armed forces of the United States. It is one of the country's eight Uniformed services ...
requires that the ferry undergo a full drydock inspection every five years.
, WSDOT is $5.5 million US$ short of being able to replace the ferry. Design work has already been completed, but the ferry is not expected to be replaced yet.
The Keller Ferry was repaired on February 15, 2007 to expand its lifespan; WSDOT detoured traffic onto .
The ''Martha S.'' had a leak that was discovered in October 2009 and is suspended. Traffic has been detoured onto other highways.
Ferry service resumed on October 19,
but one of the two engines overheated on October 26, only one week later, needing to be replaced, thus shutting down the ferry a second time during the same month.
Due to the prohibitive cost of having to specially manufacture many replacement parts, the Martha S was retired on July 7, 2013. It was replaced with the new M/V Sanpoil, which made its maiden run on August 14, 2013.
Major intersections
References
External links
Highways of Washington State
{{DEFAULTSORT:Washington State Route 021
021
069 is:
* in Brazil, the telephone area code for the city of Rio de Janeiro and surrounding cities (Greater Rio de Janeiro)
* in China, the telephone area code for the city of Shanghai.
* in Indonesia, the area code for the city of Jakarta and su ...
Transportation in Franklin County, Washington
Transportation in Adams County, Washington
Transportation in Lincoln County, Washington
Transportation in Ferry County, Washington