Primary State Highway 10 (Washington)
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| Primary State Highway 10 |
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| Okanogan Highway | |||||||||||||
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| Existed: | 1937 – 1964 | ||||||||||||
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| South end: |   PSH 7 in Quincy-PSH 2 in Olds Station |
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| North end: | PSH 2 in East Wenatchee-BC 97 at Canadian border |
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Primary State Highway 10, was a highway in the state of Washington, U.S.A., from 1937 to 1964. PSH 9's route extended from Quincy in the east, to East Wenatchee in the north.
Another tempoary section of PSH 10 was added that went from Olds Station to the Canadian border, going through Azwell. It ended at BC 97.
Today, the whole PSH 10 from PSH 7 to PSH 2 is SR 28. From Olds Station to Azwell, US 97 Alt., and from Azwell to Canada, U.S. Route 97.
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[edit] Branches
PSH 10 has 2 named branches.
[edit] Brewster-Coulee City (BC)
PSH 10BC originally branched off PSH 10 in Brewster and headed east to PSH 2. In 1951, the western end was moved east to Fort Okanogan State Park and headed southeast to Fort Joseph Dam and then joining the original alignment going east to Coulee City. In 1964, PSH 10BC became SR 17.
[edit] Brewster-Bridgeport (BB)
PSH 10BB started as part of PSH 10BC. In 1951, the old alignment of PSH 10BC became PSH 10BB. It became SR 173 in 1964.
[edit] Secondary State Highways
PSH 10 had 4 secondary branches; see secondary state highways as branches of Primary State Highway 10.
