Further northern extensions of I-110 were opened as follows: from LA 67 (Plank Road) to Hollywood Drive around 1969, to US 61/190 (Airline Highway) in 1976, to LA 408 (Harding Boulevard) in the late 1970s, and to LA 19 around 1982. The final segment between LA 19 and US 61 (Scenic Highway) in Scotlandville was completed in January 1984. In total, I-110 was constructed over the course of 30 years at a cost of $94.8 million.
