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Add train tracks
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Add settlements from 1899 map
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Extend primary road
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Extend primary road
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Add primary roads
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Add early version (1949) of interchange near Bay Bridge
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Add secondary road network
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Add to primary road network
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Add to primary road network
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Add primary roads
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Add train station
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Modified road alignment from 1969 map
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Correct road segment start date/source
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Freeway interchange
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Trace approximate lake (reservoir) extent from 1892 map
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Add secondary road
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Add secondary road
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Add modern alignment of road
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Extend Skyline Boulevard
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Add freeway interchange