1964 state highway renumbering (Washington)

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WA-PSH9.svg WA-9.svg
1964 state highway renumbering
Highway names
Interstates Interstate X (I-X)
US Highways U.S. Route X (US X)
State State Route X (SR x)
System links

The 1964 state highway renumbering was a reorganization of state highways in the U.S. state of Washington. The new system, based on sign routes (SR, later changed to state routes), replaced the primary and secondary highway system implemented in 1937. It was first signed in January 1964 and codified into the Revised Code of Washington in 1970.

Contents

History

The former numbering system of primary and secondary state highways, using lettered suffixes and unnamed branches, created confusion for motorists as the system expanded. The system also ignored, or conflicted with, the federal highway system and the then-developing Interstate Highway System. [1] The state highway department originally planned for a major highway renumbering in 1957, expanding on the existing primary and secondary system with numbers as high as 59, but serious consideration of a full-scale renumbering began in 1962. [2] It had the specific goal of replacing letter suffixes with two- and three-digit numbers, which would not repeat or conflict with each other or with federal route numbers. [3]

In 1963, the Washington State Legislature passed a law authorizing the creation of a new state highway numbering system under the direction of the Washington State Highway Commission. [4] The law came in response to confusion experienced by tourists visiting during the 1962 World's Fair, held in Seattle. [5] The highway commission approved its numbering plan on June 19, 1963, using even numbers for east–west routes and odd numbers for north–south routes; primary routes would have lower numbers, while secondary routes would use the first digit to indicate its parent route. [6] [7] Federal highways, including Interstate highways, would retain their designations and be incorporated into the system. [8] The new numbering system took effect on January 15, 1964, [9] [10] and new signs were posted at a cost of $115,000. [5] [11]

Route renumbering

New Sign Route numbers

New number [12] SectionOld numberNotes
US 2 (1961).svg SR 2 I-5 in Everett to US 97 in Peshastin PSH 15
US 97 in Peshastin to I-90 in Spokane PSH 2
I-90 in Spokane to US 395 in Mead PSH 3
US 395 in Mead to Idaho state line PSH 6
WA-3.svg SR 3 US 101 in Shelton to SR 106 in Belfair SSH 14A
SR 106 in Belfair to SR 104 at the Hood Canal Bridge PSH 21
I-5.svg SR 5 entire route PSH 1
WA-6.svg SR 6 entire route PSH 12
WA-7.svg SR 7 entire route PSH 5
WA-8.svg SR 8 entire route PSH 9
WA-9.svg SR 9 entire route SSH 1A
US 10 (1961).svg SR 10 US 99 in Seattle to US 97 in Teanaway PSH 2 U.S. Route 10 was truncated to Coeur d'Alene, Idaho, in 1971. [13] SR 10 from Cle Elum to Ellensburg still remains as a state highway. SR 90 (I-90) was also renumbered from the same Primary State Highways (see below).
US 97 in Teanaway to I-82 in Ellensburg PSH 3
I-82 in Ellensburg to SR 281 in Burke PSH 7
SR 281 in Burke to US 395 in Ritzville PSH 18
US 395 in Ritzville to US 2 in Spokane PSH 11
US 2 in Spokane to Idaho state line PSH 2
WA-11.svg SR 11 entire route PSH 1
WA-12.svg SR 12 entire route PSH 8 In 1967, U.S. Route 12 was extended into Washington. At that time, SR 14 was renumbered as a portion of US/SR 12, and SR 12 was renumbered as a portion of current SR 14. [14] [15]
WA-14.svg SR 14 entire route PSH 5
WA-16.svg SR 16 entire route PSH 14
WA-17.svg SR 17 US 395 in Eltopia to SR 28 in Soap Lake SSH 11G
SR 28 in Soap Lake to US 2 in Coulee City PSH 7
US 2 in Coulee City to US 97 near Brewster PSH 10
WA-18.svg SR 18 entire route PSH 2
WA-20.svg SR 20 entire route PSH 16 Extended in 1973
WA-21.svg SR 21 US 395 near Lind to US 2 in Wilbur SSH 4B
US 2 in Wilbur to SR 30 in Republic PSH 4
SR 30 in Republic to Canadian border SSH 4A
WA-22.svg SR 22 US 410 in Buena to US 97 in Toppenish PSH 8
US 97 in Toppenish to US 410 in Prosser SSH 3A
WA-23.svg SR 23 US 195 in Steptoe to I-90 in Sprague PSH 18
I-90 in Sprague to SR 28 in Harrington SSH 11F
WA-24.svg SR 24 entire route SSH 11A
WA-25.svg SR 25 entire route PSH 22
WA-26.svg SR 26 I-90 in Vantage to SR 261 in Washtucna SSH 7C
SR 261 in Washtucna to US 295 in Dusty SSH 11B
WA-27.svg SR 27 US 195 in Pullman to SR 271 in Oakesdale PSH 3
SR 271 in Oakesdale to I-90 in Opportunity SSH 3H
WA-28.svg SR 28 US 2 in East Wenatchee to SR 281 in Quincy PSH 10
SR 281 in Quincy to US 2 in Davenport PSH 7
WA-30.svg SR 30 US 97 in Tonasket to SR 21 in Republic PSH 4 Renumbered in 1973 as a portion of SR 20
SR 21 near Republic to US 395 near Kettle Falls SSH 3P
WA-31.svg SR 31 entire route PSH 6 SR 31 was truncated to Tiger in 1973. [16] The portion south of Tiger was renumbered as a portion of SR 20.
I-82.svg SR 82 entire route PSH 3
I-90.svg SR 90 I-5 in Seattle to US 97 in Teanaway PSH 2 Interstate 90 was still under construction in 1964. While it was under construction, the Primary State Highway numbers listed referred to both the old alignment (US 10), and the new alignment (I-90).
US 97 in Teanaway to I-82 in Ellensburg PSH 3
I-82 in Ellensburg to SR 281 in George PSH 7
SR 281 in George to US 395 in Ritzville PSH 18
US 395 in Ritzville to US 2 in Spokane PSH 11
US 2 in Spokane to Idaho state line PSH 2
WA-92.svg SR 92 entire route SSH 15A
US 95 (1961).svg SR 95 entire route PSH 3 In the mid-1970s, US 95 was rerouted to no longer serve the state of Washington. [17] The segment in Washington was renumbered as US 195 Spur and a portion of U.S. Route 195.
US 97 (1961).svg SR 97 Oregon state line to SR 22 in Toppenish PSH 8 Concurrencies with SR 90 and SR 2 are skipped in this list.
SR 22 in Toppenish to I-82 in Union Gap SSH 3A
I-82 in Union Gap to I-90 in Ellensburg PSH 3
I-90 in Teanaway to US 2 in Peshastin PSH 2
US 2 in Wenatchee to British Columbia, Canada border PSH 10
US 99 (1961).svg SR 99 entire route PSH 1 US 99 was deleted in 1969. A portion of SR 99 remains as a state highway from Fife to Everett.
Alt plate.svg
US 99 (1961).svg SR 99 Alt 		entire route SSH 1B Renumbered SR 539 in 1969
Temp plate.svg
US 99 (1961).svg SR 99 Temp 		entire route PSH 1 This was a temporary state highway designation for West Marginal Way while the West Marginal Way Freeway was under construction in the 1960s. The West Marginal Way Freeway is now a portion of SR 99. West Marginal Way is no longer a state highway.
US 101 (1961).svg SR 101 Oregon state line to SR 6 in Raymond PSH 12
SR 6 in Raymond to US 410 in Aberdeen PSH 13
US 410 in Aberdeen to I-5 in Tumwater PSH 9
WA-103.svg SR 103 entire route SSH 12A
WA-104.svg SR 104 US 101 in Discovery Bay to SR 3 at the Hood Canal Bridge SSH 9E
SR 3 at the Hood Canal Bridge to the Kingston ferry PSH 21
Edmonds ferry to I-5 at the King-Snohomish county line SSH 1W
I-5 at the King-Snohomish county line to SR 522 in Lake Forest Park SSH 2B
WA-105.svg SR 105 entire route SSH 13A
WA-106.svg SR 106 entire route PSH 21
WA-107.svg SR 107 entire route PSH 9
WA-108.svg SR 108 entire route SSH 9D
WA-109.svg SR 109 entire route SSH 9C
WA-111.svg SR 111 entire route SSH 9G Removed from state highway system in 1971
WA-112.svg SR 112 entire route SSH 9A
WA-113.svg SR 113 US 101 in Discovery Bay to the Port Townsend ferry PSH 9 SR 113 was renumbered as a portion of SR 20 in 1973. An unrelated road was designated SR 113 in 1992.
Keystone ferry to SR 525 on Whidbey Island SSH 1D
WA-120.svg SR 120 entire route SSH 8B SR 120 was renumbered as SR 140 in 1967, and was removed from state highway system in 1992
WA-121.svg SR 121 entire route SSH 8D SR 121 was renumbered as SR 141 in 1967. SR 801 was renumbered as a new SR 121 at the same time.
WA-122.svg SR 122 entire route SSH 8E SR 122 was renumbered as SR 142 in 1967. An unrelated road was designated SR 122 in 1992.
WA-124.svg SR 124 US 395 in Burbank to SR 125 near Prescott SSH 3D
SR 125 near Presoctt to US 410 in Waitsburg SSH 3E
WA-125.svg SR 125 Oregon state line to US 410 in Walla Walla PSH 3
US 410 in Walla Walla to SR 124 near Prescott SSH 3E
WA-126.svg SR 126 entire route SSH 3L Removed from state highway system in 1992
WA-128.svg SR 128 entire route SSH 3K
WA-129.svg SR 129 entire route PSH 3
WA-131.svg SR 131 entire route SSH 2I SR 131 was renumbered in 1975 as a portion of US 97. An unrelated road was designated SR 131 in 1992.
WA-141.svg SR 141 entire route SSH 5L SR 141 was dropped from the state highway system in 1967, and the designation was reapplied to former SR 121.
WA-143.svg SR 143 entire route PSH 5 SR 143 was renumbered as SR 123 in 1967. An unrelated road was designated SR 143 from 1973 to 1985.
WA-150.svg SR 150 entire route SSH 10C
WA-151.svg SR 151 entire route SSH 10D The SR 151 designation was deleted in 1987, the roadway having become a portion of US 97 and an eastern extension of SR 150.
WA-153.svg SR 153 entire route PSH 16
WA-155.svg SR 155 US 2 in Coulee City to the Grand Coulee Dam SSH 2F
Grand Coulee Dam to US 97 in Omak SSH 10A
WA-160.svg SR 160 entire route PSH 14
WA-161.svg SR 161 Eatonville to SR 512 in South Hill SSH 5N
SR 512 in South Hill to US 410 in Puyallup SSH 5G
US 410 in Puyallup to I-5 near Auburn SSH 5D
WA-162.svg SR 162 entire route SSH 5E
WA-163.svg SR 163 entire route PSH 5 SR 163 was renumbered as a portion of SR 167 in 1969. An unrelated road was designated SR 163 in 1992.
WA-165.svg SR 165 entire route PSH 5
WA-167.svg SR 167 entire route PSH 5
WA-168.svg SR 168 entire route PSH 5 The Naches Pass Highway has been part of the state highway system since 1943, and was numbered SR 168 in 1964, but has yet to be constructed.
WA-169.svg SR 169 entire route PSH 5
WA-171.svg SR 171 entire route SSH 7E
WA-172.svg SR 172 entire route SSH 10B
WA-173.svg SR 173 entire route PSH 10
WA-174.svg SR 174 SR 17 in Leahy to SR 155 in Grand Coulee SSH 10B
SR 155 in Grand Coulee to SR 21 near Wilbur SSH 4C
WA-181.svg SR 181 SR 18 in Auburn to US 99 in Duwamish SSH 2M
US 99 in Duwamish to SR 900 in South Seattle PSH 1
US 195 (1961).svg SR 195 entire route PSH 3
WA-202.svg SR 202 entire route PSH 15 In 1970, SR 202 was renumbered as a portion of SR 522. SR 522 from Woodinville to North Bend was renumbered as the new SR 202.
WA-203.svg SR 203 entire route SSH 15B
WA-204.svg SR 204 entire route SSH 15A
I-205.svg SR 205 entire route PSH 1
WA-207.svg SR 207 US 2 near Winton to SR 209 at Lake Wenatchee State Park SSH 15C The portion of SR 207 north of Lake Wenatchee was dropped from the state highway system in 1992.
SR 209 at Lake Wenatchee State Park to Telma SSH 15D
WA-209.svg SR 209 entire route SSH 15C Removed from state highway system in 1992
WA-220.svg SR 220 entire route SSH 3B Dropped from the state highway system in 1992
WA-221.svg SR 221 entire route PSH 8
WA-223.svg SR 223 entire route SSH 3T
WA-224.svg SR 224 entire route SSH 3R
WA-230.svg SR 230 entire route PSH 18
WA-231.svg SR 231 I-90 in Sprague to US 2 in Reardan SSH 2G
US 2 in Reardan to US 395 in Chewelah SSH 3J
WA-240.svg SR 240 SR 24 in Cold Creek to SR 224 in Richland SSH 11C
SR 224 in Richland to US 410 in Richland SSH 3R
WA-243.svg SR 243 entire route SSH 7C
WA-251.svg SR 251 entire route SSH 22A Removed from the state highway system in 1983 [18]
WA-260.svg SR 260 SR 17 near Mesa to US 395 in Connell SSH 11A
US 395 in Connell to SR 26 in Washtucna SSH 11B
WA-261.svg SR 261 US 410 in Delaney to SR 26 near Washtucna SSH 11B
SR 26 near Washtucna to I-90 in Ritzville SSH 11E
WA-270.svg SR 270 entire route PSH 3
WA-271.svg SR 271 entire route PSH 3
WA-272.svg SR 272 US 195 in Colfax to SR 27 in Palouse SSH 3F
SR 27 in Palouse to Idaho state line PSH 3
WA-274.svg SR 274 entire route SSH 3H
WA-281.svg SR 281 entire route PSH 7
Spur plate.svg
WA-281.svg SR 281 Spur 		entire route PSH 18
WA-282.svg SR 282 entire route SSH 11G
WA-283.svg SR 283 entire route PSH 7
WA-290.svg SR 290 entire route SSH 2H
WA-291.svg SR 291 entire route SSH 3S
WA-292.svg SR 292 entire route SSH 3J
WA-294.svg SR 294 entire route SSH 6A Renumbered in 1970 as a portion of SR 20
US 295 (1961).svg SR 295 entire route PSH 3 In 1970, US 295 was dropped from the U.S. Highway System, and was renumbered SR 127. In 1979, the section from Dusty to Colfax was renumbered from SR 127 to a portion of SR 26.
WA-300.svg SR 300 entire route SSH 21C
WA-302.svg SR 302 entire route SSH 14A
WA-303.svg SR 303 SR 304 in Bremerton to Keyport SSH 21B
Keyport to SR 3 PSH 21
WA-304.svg SR 304 entire route PSH 21
WA-305.svg SR 305 entire route SSH 21A
WA-306.svg SR 306 entire route SSH 21B Removed from the state highway system in 1992
WA-311.svg SR 311 entire route SSH 6B
US 395 (1961).svg SR 395 Oregon state line to US 410 in Pasco PSH 3 Concurrencies with SR 90 and SR 2 are skipped in this list.
US 410 in Pasco to I-90 in Ritzville PSH 11
US 2 in Mead to British Columbia, Canada border PSH 3
WA-401.svg SR 401 entire route SSH 12B
WA-402.svg SR 402 entire route SSH 12G The proposed SSH 12-G / SR 402 highway from Grays River to Pe Ell was never built, and was dropped from the state highway system in 1971.
WA-403.svg SR 403 entire route SSH 12C Removed from the state highway system in 1992
I-405.svg SR 405 entire route PSH 1 I-405 was signed as a state highway until it was improved to Interstate Highway standards in 1970-71.
WA-407.svg SR 407 entire route SSH 12D Dropped from the state highway system in 1992
WA-409.svg SR 409 entire route SSH 12F
US 410 (1961).svg US 410 US 101 in Aberdeen to US 101 at Mud Bay PSH 9 In 1967, US 410 was dropped from the U.S. Highway System, and became US 12, except from Elma to Naches. From Elma to Mud Bay, SR 410 was renumbered SR 8. From Mud Bay to Tacoma, the designation was removed from concurrencies with US 101 and I-5/US 99 (this section is skipped in this list). From Tacoma to Naches, the highway remained numbered SR 410. In 1973, the section of SR 410 from Tacoma to Sumner was renumbered as a portion of SR 167.
I-5 in Tacoma to I-82 in Yakima PSH 5
I-82 in Union Gap to Idaho state line PSH 3
WA-411.svg SR 411 entire route SSH 12H
WA-500.svg SR 500 entire route SSH 8A
WA-501.svg SR 501 entire route SSH 1T
WA-502.svg SR 502 entire route SSH 1S
WA-503.svg SR 503 SR 500 in Orchards to SR 502 in Battle Ground SSH 1U
SR 502 in Battleground to I-5 in Woodland SSH 1S
WA-504.svg SR 504 entire route SSH 1R
WA-505.svg SR 505 entire route SSH 1Q
WA-506.svg SR 506 entire route SSH 1P
WA-507.svg SR 507 I-5 in Centralia to Tenino SSH 1N
Tenino to SR 7 in Roy SSH 5H
WA-508.svg SR 508 entire route SSH 5K
WA-509.svg SR 509 I-5 in Tacoma to SR 516 in Des Moines SSH 1V
SR 516 in Des Moines to US 99 at the Duwamish River SSH 1K
WA-510.svg SR 510 entire route SSH 5I
WA-512.svg SR 512 entire route SSH 5G
WA-513.svg SR 513 entire route SSH 1J The portion of SR 513 south of SR 520 was dropped from the state highway system in 1971. The portion north of NE 65th Street in Seattle was dropped in 1992.
WA-514.svg SR 514 entire route SSH 1X Dropped from the state highway system in 1992
WA-515.svg SR 515 entire route SSH 5C
WA-516.svg SR 516 SR 509 in Des Moines to I-5 in Midway SSH 1K
I-5 in Midway to SR 169 in Summit SSH 5A
WA-518.svg SR 518 entire route SSH 1L
WA-520.svg SR 520 entire route PSH 1
WA-522.svg SR 522 entire route PSH 2 In 1970, SR 522 east of Bothell was renumbered as SR 202, and old SR 202 from Bothell to Monroe became a portion of SR 522.
WA-524.svg SR 524 entire route SSH 1W
WA-525.svg SR 525 US 99 in Martha Lake to Mukilteo ferry SSH 1I
Clinton ferry to SR 536 near Anacortes SSH 1D
WA-526.svg SR 526 entire route SSH 1I
WA-527.svg SR 527 entire route SSH 2J
WA-528.svg SR 528 entire route PSH 1
WA-530.svg SR 530 entire route SSH 1E
WA-532.svg SR 532 entire route SSH 1Y
WA-534.svg SR 534 entire route SSH 1H
WA-536.svg SR 536 entire route PSH 1 In 1973, the portion of SR 536 west of its current western terminus in Fredonia was renumbered as a portion of SR 20.
WA-537.svg SR 537 entire route SSH 1C In 1975, SR 537 was renumbered SR 237. In 1992, it was dropped from the state highway system.
WA-538.svg SR 538 entire route SSH 1G
WA-540.svg SR 540 entire route SSH 1Z Dropped from the state highway system in 1992.
WA-542.svg SR 542 entire route PSH 1
WA-543.svg SR 543 entire route PSH 1
WA-544.svg SR 544 entire route SSH 1A
WA-546.svg SR 546 entire route SSH 1B
WA-603.svg SR 603 entire route SSH 12E In 1992, SR 603 north of Winlock was dropped from the state highway system. SR 603 south of Winlock was renumbered as a portion of SR 505.
WA-702.svg SR 702 entire route SSH 5J
WA-706.svg SR 706 entire route PSH 5
WA-801.svg SR 801 entire route SSH 1M In 1967, SR 801 was renumbered as SR 121. Although SR 121 still exists, the section that had been SR 801 was dropped from the state highway system in 1992.
US 830 (1961).svg SR 830 US 101 in Johnsons Landing to I-5 in Kelso PSH 12 In 1968, US 830 was dropped from the U.S. Highway system. The portion west of I-5 was renumbered as SR 4; the portion east of I-5 was renumbered as a portion of SR 14.
I-5 in Vancouver to US 97 in Maryhill PSH 8
WA-831.svg SR 831 entire route PSH 12 In 1968, SRs 831, 832, and 833 were renumbered SRs 431, 432, and 433 respectively.
WA-832.svg SR 832 entire route PSH 12
WA-833.svg SR 833 entire route PSH 12
WA-900.svg SR 900 entire route PSH 2
WA-901.svg SR 901 entire route SSH 2D In 1971, the portion of SR 901 from Bellevue to downtown Redmond was renumbered as SR 908. In 1992, the remaining portion of SR 901 was dropped from the state highway system.
WA-902.svg SR 902 entire route SSH 11D
WA-903.svg SR 903 entire route SSH 2E
WA-904.svg SR 904 entire route SSH 11H The SR 904 designation was assigned in 1964. However, it remained posted as a section of US 10/395 (and not as SR 904) until I-90 was completed past Cheney in 1966.
This article is part of the
highway renumbering series.
Alabama 1928, 1957
Arkansas 1926
California 1964
Colorado 1953, 1968
Connecticut 1932, 1963
Florida 1945
Indiana 1926
Iowa 1926, 1969
Louisiana 1955
Maine 1933
Massachusetts 1933
Minnesota 1934
Missouri 1926
Montana 1932
Nebraska 1926
Nevada 1976
New Jersey 1927, 1953
New Mexico 1988
New York 1927, 1930
North Carolina 1934, 1937, 1940, 1961
Ohio 1923, 1927, 1962
Pennsylvania 1928, 1961
Puerto Rico 1953
South Carolina 1928, 1937
South Dakota 1927, 1975
Tennessee 1983
Texas 1939
Utah 1962, 1977
Virginia 1923, 1928, 1933, 1940, 1958
Washington 1964
Wisconsin 1926
Wyoming 1927
This box:

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State Route 261 (SR 261) is a 62.71-mile-long (100.92 km) state highway in the U.S. state of Washington. Serving Columbia, Franklin, and Adams counties, the highway begins at U.S. Route 12 (US 12) east of Starbuck and becomes concurrent with SR 260 from Kahlotus to SR 26 in Washtucna before ending at Interstate 90 (I-90) and US 395 in Ritzville. The highway has been legislated since 1937 from Ritzville to Washtucna as Secondary State Highway 11E (SSH 11E) and in 1957 from Washtucna to the Starbuck area as a branch of SSH 11B. The two secondary highways became SR 261 during the 1964 highway renumbering, and a gap between Washtucna and Starbuck was not paved until the construction of the Snake River Bridge was completed in 1968.

<span class="mw-page-title-main">Washington State Route 260</span> State highway in Washington, United States

State Route 260 (SR 260) is a 37.98-mile-long (61.12 km) state highway serving Franklin and Adams counties in the U.S. state of Washington. The highway begins at SR 17 west of Connell, and travels through the Washtucna Coulee to Kahlotus, forming the southern terminus of SR 21 and the northern terminus of SR 263, before a concurrency with SR 261 to SR 26 in Washtucna.

<span class="mw-page-title-main">U.S. Route 12 in Washington</span> Section of U.S. Highway in Washington, United States

U.S. Route 12 is a major east–west U.S. Highway, running from Aberdeen, Washington, to Detroit, Michigan. It spans 430.5 miles (692.8 km) across the state of Washington, making it the second longest highway in the state. It is also the only numbered highway to span the entire state from west to east, starting near the Pacific Ocean, and crossing the Idaho state line near Clarkston. It crosses the Cascade Range over White Pass, south of Mount Rainier National Park. Portions of it are concurrent with Interstate 5 (I-5) and Interstate 82 (I-82), although the majority of the route does not parallel any interstate highway.

<span class="mw-page-title-main">State highways in Washington</span> A collection of roadways in the U.S. state of Washington

The State Highways of Washington in the U.S. state of Washington comprise a network of over 7,000 miles (11,270 km) of state highways, including all Interstate and U.S. Highways that pass through the state, maintained by the Washington State Department of Transportation (WSDOT). The system spans 8.5% of the state's public road mileage, but carries over half of the traffic. All other public roads in the state are either inside incorporated places or are maintained by the county. The state highway symbol is a white silhouette of George Washington's head.

<span class="mw-page-title-main">Washington State Route 237</span> Highway in Washington

State Route 237 was a 9.07-mile (14.60 km) Washington state highway that ran from SR 20 in Fredonia, through Edison and ending at SR 11 east of Edison. The roadway was established in 1937 as Secondary State Highway 1C and was renumbered to State Route 537 in 1964, before being renumbered to SR 237 in 1975. The road was decommissioned in 1991.

References

  1. ↑ Hauptli, Jack (July 1, 1962). "2B or not 2B—Maybe it is 2A". The Seattle Times . p. 3.
  2. ↑ "Plan for Renumbering State Highways Goes to Legislature". Washington Highways. Vol. 6, no. 9. Washington State Department of Highways. March 1957. pp. 19–20. OCLC   29654162 . Retrieved September 12, 2018– via WSDOT Library Digital Collections.
  3. ↑ "New Numbers For Highways In-State Urged". The Seattle Times. Associated Press. September 18, 1962. p. 4.
  4. ↑ "Chapter 24: Highways—Routes—Numbering" (PDF). Session Laws of the State of Washington, 1963. Washington State Legislature. March 9, 1963. pp. 316–318. Retrieved June 2, 2017.
  5. 1 2 Hauptli, Jack (February 23, 1964). "Highway Department Plays The Numbers Game!". The Seattle Times. pp. 10–11.
  6. ↑ Smith, Lee (January 12, 1964). "Days Numbered For State Highway Daze—New Designations Scheduled". Seattle Post-Intelligencer . Associated Press. p. 14.
  7. ↑ "Renumbering Of Roads Set". The Seattle Times. Associated Press. June 19, 1963. p. 24.
  8. ↑ "Renumbering of roads set". The Seattle Times. Associated Press. June 19, 1963. p. 24.
  9. ↑ "New Road Numbering Is Started". Walla Walla Union-Bulletin. January 7, 1964. p. 5.
  10. ↑ Hannula, Don (November 29, 1963). "Just Ignore Signs On New Freeway". The News Tribune . p. 2. Retrieved March 25, 2022– via Newspapers.com.
  11. ↑ "Times Troubleshooter: New Route Numbers". The Seattle Times. January 16, 1964. p. 10.
  12. ↑ Prahl, C. G. (December 1, 1965). "Identification of State Highways" (PDF). Washington State Highway Commission. Archived from the original (PDF) on October 30, 2008. Retrieved June 2, 2017.
  13. ↑ Mapguy (September 6, 2006). "End of U.S. Highway 10". Archived from the original on October 19, 2009. Retrieved February 28, 2008.[ self-published source ]
  14. ↑ Bozanich, Mark. "State Route 12". Highways of Washington State. Retrieved February 29, 2008.[ self-published source ]
  15. ↑ Bozanich, Mark. "State Route 14". Highways of Washington State. Retrieved February 29, 2008.[ self-published source ]
  16. ↑ Bozanich, Mark. "State Route 31". Highways of Washington State. Retrieved February 29, 2008.[ self-published source ]
  17. ↑ Mapguy (August 19, 2005). "End of U.S. Highway 195". Archived from the original on October 23, 2009. Retrieved February 29, 2008.[ self-published source ]
  18. ↑ "Chapter 47.17 RCW Dispositions: State highway routes". Washington . Retrieved March 5, 2008.
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