Northbound US 77-L begins as LaSalle Avenue in southern Waco at a
traffic circle with its parent route, along with Circle Drive and Valley Mills Drive. Approximately north-northeast of the northbound southern terminus of US 77-L, it connects with southbound US 77 at South 18th Street. (This intersection is the southern terminus of southbound US 77-L.) From that intersection US 77-L runs along the eastern boundary of
Baylor University before crossing the
Brazos River. Now, South Loop Drive, the highway
interchanges with
Loop 484 and becomes a mostly a freeway. After crossing
Interstate 35 (I-35) / US 77 and then
U.S. Route 84, the highway drops its freeway status and briefly enters Bellmead. The highway enters
Lacy Lakeview as the town's main street. Just north of Lacy Lakeview US 77-L ends at I-35 / US 77 (just south of
Elm Mott). ==Junction list==