Why is part of the city's street grid oriented towards the river and the rest oriented north-south?

Posted by stickbreak_arrowmake@reddit | Dallas | View on Reddit | 37 comments

If you have ever looked at a map of the city, or just gotten lost because the street you were on suddenly veered off at a weird angle, you may have realized the city's streets seem to clash in parts. Part of the streets in Dallas (Oak Lawn, Uptown, Downtown, and South Dallas) are oriented towards the Trinity, but the rest of the city is just a standard north-south grid.

I realize its not uncommon in many cities built near a body of water- for instance in Seattle, it was because the original owners of the land grants couldn't agree on what directions they wanted the streets to go on their property. I figure its the same for Dallas, but I was wondering if there was an interesting story behind it. Anyone know?