| Name: | GTW RR over LANTZ |
| Structure number: | 825180811070X01 |
| Location: | W OF JOHN R |
| Purpose: | Carries railroad over highway |
| Route classification: | Local (Urban) [19] |
| Length of largest span: | 65.0 ft. [19.8 m] |
| Total length: | 91.9 ft. [28.0 m] |
| Year built: | 1938 |
| Main span material: | Steel [3] |
| Main span design: | Girder and floorbeam system [03] |
This bridge DOES carry the GT/CN Holly Subdivision over a stretch of what appears to be a four-lane highway. As a result, the center span is about thirteen feet wider than the 1940 GTW bridge over much-busier State Fair Avenue to the north.
However, Lantz is NOT a highway. Except for the portion between John R and Charleston, Lantz is a narrow, one-way-westbound RESIDENTIAL STREET. Here's how this happened:
After West and East Grand Boulevard (inspired by the "Grands Boulevards" of Paris) were completed c. 1900, Detroit city planners continued to analogize with Parisian-style traffic engineering with another good idea: OUTER DRIVE, based on the "Boulevards Outieres" of Paris. Unfortunately (for the planners), Detroit was a boom town during the first three decades of the twentieth century. Residential development and political division literally got in the way of any attempt to complete a continuous divided parkway circling the city.
Farther east, a portion of the proposed boulevard between Six Mile and Gratiot was never built - the unused right-of-way was instead incorporated into a runway at Detroit City Airport (1930). East Outer Drive never got any farther west than Dequindre Road, a longitudinal "mile road" that formed the border between two rural townships, long before this area became part of Detroit. The township closer to Woodward developed faster, so that ended that - for a while.
Evidently, a last-ditch effort was made in the late-1930s to ram the Drive to Woodward. A deserted four-lane "highway", topped by a grandiose railroad grade-separation, is all there is to show for it.
I have seen an old map that showed the "proposed Outer Drive" alignment along Lantz.