The Fort Bend Parkway Toll Road is the Fort Bend County (i.e.,southern) portion of a continuous toll road connecting Sienna Plantation in eastern Fort Bend County to US 90A in southwestern Harris County. It is administered by the Fort Bend County Toll Road Authority (FBCTRA). The Harris County Toll Road Authority (HCTRA) administers the Harris County (i.e., northern) segment of the road — from just south of Beltway 8 at the county line to US 90A — and uses its purple pentagonal shield labeled as Fort Bend Toll Road (the colloquial name for the entirety). It is proposed to reach a northern terminus at the southwestern corner of Interstate 610 in the future, and SH 99 at its southern terminus. The toll road has two lanes in each direction with major interchanges at Sienna Parkway, State Highway 6, Lake Olympia Parkway, and FM 2234, and a connection, albeit not seamless, with Beltway 8. There are Toll Plazas between every interchange in FBCTRA territory. Originally, a main toll plaza was located north of FM 2234 with ramp tollbooths at FM 2234 and Lake Olympia Parkway. Another toll plaza was located north of Beltway 8 in the HCTRA segment. Currently, the FBCTRA is constructing an expansion to Sienna Ranch Road a little west of Sienna Parkway. The speed limit is 65 mph in the southern portion but drops to 60 mph inside Beltway 8. History and formation The tollway's origins date back to a TxDOT (Texas Department of Transportation) original proposal of building a highway from the southwest corner of I-610 in Houston (where North Braeswood and I-610 meet). A section of frontage roads (later part of Hillcroft Avenue in Houston) was constructed in the late 1960s/early 1970s (date unknown) south of the proposed Beltway 8 (Sam Houston Tollway), south of Harris County adjacent to the Chasewood and Willow Park II subdivisions in northeast Fort Bend County. Originally planned as either the West Loop Extension or the Bay City Freeway, the proposed freeway was cancelled in 1979 although remnants of the freeway exist (an extension of South Post Oak between West Bellfort and North/South Braeswood, along with a section of the Fort Bend Tollway between Beltway 8 and West Fuqua in Fort Bend County). Although the 1979 cancellation has ended TxDOT's highway proposal, Fort Bend County had an interest in the roadway project since 1984. On March 29, 1988, the parkway was