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Proposed downtown Portland highway extensions map |
M/1835 |
12/31/1940 |
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Proposed downtown Portland highway extensions map |
M/1836 |
12/31/1940 |
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Downtown Portland map near waterfront |
M/1837 |
12/31/1940 |
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Map of rail facilities and connections in Portland and vicinity showing relation to south Portland industries after construction of Front Ave improvement project |
M/1838 |
06/27/1940 |
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Portland Oregon proposed plans for collection and disposal of sewage |
M/1839 |
08/31/1939 |
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Extension arterial highway system into and through Portland |
M/1840 |
08/31/1939 |
