Detroit Redlining Map 1939

[MSUguy]

Part of Detroit’s history of racial discrimination is comprised on housing discrimination, which in turn contributed to job discrimination, interpersonal racism, and continued racial inequity of opportunity. These areas of Detroit were targeted for “urban renewal” in the 1960s which displaced thousands of black residents to public housing complexes. Today these areas of Detroit have more vacancy [[see map) than others either because the redlined properties were managed by slumlords whose properties deteriorated [[see map) more quickly or from renewal efforts that didn’t consider the displacement
of black residents.


http://detroitography.com/2014/12/10/detroit-redlining-map-1939/

If you haven't had chance to check out the Detroitography blog you should tons of interesting maps of the city.

[Jimaz]

A magnified view of the legend on both maps:

Attachment 25156

[Bham1982]

While I don't doubt that black neighborhoods were hit very hard, just going by this map, it seems to target old, industrial and poor neighborhoods moreso than specifically by race. Of course, because of segregation, pretty much all the black neighborhoods happened to be redlined, because they were undesirable neighborhoods by definition.

To take an example, SW Detroit, which never had a significant black population, is fully redlined. Back in 1940, SW Detroit, with its old housing and industrial base, would have probably been looked at every bit as "fourth grade" according to this map, even if the inhabitants weren't black.