Location: IH 10 at the Louisiana Line, Orange Cty Just after 90 Business rejoins, we’ll cross the Sabine River into Calcasieu Parish, Louisiana. US-90 and I-10 will concur for a few more miles, and then parallel each other all the way to Lafayette. E to US-90, W to TX-87 E to I-10, W to TX-87 W … Continue reading Interstate 10, US-90 Bus to LA State Line