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Added part of SR 206.
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Adding US 66 Business
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Adding US 66 Business
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Adding US 66 Business
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Fixing dates on highways.
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Fixing dates on highways.
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Added post SR-18 E Street
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Fixing dates on highways.
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Fixing dates on highways.
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Fixing dates on highways.
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Fixing dates on highways.
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Adding post-1964 US 395
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Fixing dates on highways.
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Adding post-1964 US 395
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Adding post-1964 US 395
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Adding post-1964 US 395
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Adding post-1964 US 395
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Adding ramps on the San Bernardino Freeway.
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Adding ramps on the San Bernardino Freeway.
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Adding the 1959 routing of US 66/US 91/US 395.