Business Loop I-35 - Kyle
Established in a mileage transfer from U.S. 81 on June 21, 1990, the route of Business Loop I-35J through Kyle followed Old Highway 81 west from a long split diamond interchange at Exit 213. The southbound component looped from on and off-ramps with IH 35 directly, while northbound was not directly accessible from the freeway mainline.
Coupled with work north at Kyle Crossing and FM 1626, construction through October 2013 reconfigured Exit 213 and the east-west route of FM 150 through Kyle. Work extended the west side frontage road from Kyle Parkway (FM 1626) south to Kyle. This partially displaced Old Highway 81 (Business Loop I-35) near the original off-ramp from IH 35 south.
Phase 2A constructed a new multi lane alignment for FM 150 curving south from the IH 35 frontage road system at Center Street to the original alignment nearby. Phase 2B relocated the southbound off-ramp one mile to the north and completed the new southbound only frontage road both to FM 150 (Center Street) and the south end of Business Loop I-35.
Although now discontinuous along Old Highway 81, Business Loop I-35 is still posted with shields north and south of FM 150 (Center Street). Guide signs from the IH 35 mainline still omit the 1.46 mile route.