Three loop freeways provide north-south and east-west connectivity between Greater Houston's radial highways. The innermost loop is Interstate 610, commonly known as the Inner Loop, which encircles Downtown, the Texas Medical Center, Greenway Plaza, the cities of West University Place and Southside Place, and many core neighborhoods. The 88-mile (142 km) State Highway Beltway 8, often referred to as the Beltway, forms the middle loop at a radius of roughly 10 miles (16 km). A third, 180-mile (290 km) loop with a radius of approximately 25 miles (40 km), State Highway 99 (the Grand Parkway), is currently under construction, with six of eleven segments completed as of 2018.[268] Completed segments D through G provide a continuous 70.4-mile (113.3 km) limited-access tollway connection between Sugar Land, Katy, Cypress, Spring, and Porter.[268]
The Allen brothers—Augustus Chapman and John Kirby—explored town sites on Buffalo Bayou and Galveston Bay. According to historian David McComb, "[T]he brothers, on August 26, 1836, bought from Elizabeth E. Parrott, wife of T.F.L. Parrott and widow of John Austin, the south half of the lower league [2,214-acre (896 ha) tract] granted to her by her late husband. They paid $5,000 total, but only $1,000 of this in cash; notes made up the remainder."[18] Saturday worship service

