In a grid city as orderly and well-behaved as Denver, non-orthogonal streets like Speer Boulevard, Park Avenue, Morrison Road, and Leetsdale Drive stick out from the rest. You might say that they are the street grid’s problem children, resulting from the shotgun marriage of Denver’s 19th century prairie settlement with 20th century automobile development. Some were created for the purpose of a urban beautification; others tackle practical flood control and have been expanded over the years to suit traffic engineers. But all these non-orthogonal streets create problems for Denverites [...]