Missouri City leaders are taking concrete steps to improve mobility for residents of the rapidly expanding Sienna community. During a Sept. 21 council meeting, the city approved a partnership with developer Toll‑GTIS Property Owner LLC and Sienna Municipal Utility District No. 5 (MUD 5) to fund a multi‑phase road‑building program valued at up to $10 million.

Project scope and key improvements

The agreement outlines three primary construction elements:

• Widening a segment of Sienna Parkway that crosses the railroad tracks and connects to FM 521.
• Building a new road linking Sienna Lakes Drive to FM 521.
• Constructing a connector from Park Crossing Drive to One Oak Chase Road, which will ultimately join Fenn Road and FM 521.

MUD 5 will contribute the full $10 million to expand Sienna Parkway from four lanes to six lanes between Steep Bank Trace and Scanlan Trace North, the two intersections that flank the railroad corridor. The widening will also extend where the parkway meets FM 521.

Why the upgrades matter

Public Works Director Mustafa Albassam emphasized that the road work is a prerequisite for continued residential growth. “Anticipating what the future will bring, you need to have capacity and alternate routes for the residents to use,” Albassam said. City Attorney E. Joyce Iyamu added that the city has held off on approving new Sienna developments until the traffic circulation issues are resolved.

Historically, the city’s mobility plans have focused on relieving chokepoint intersections. This new initiative shifts the emphasis to broader connectivity, a change Albassam described as “each single one of the projects is literally just one piece of the puzzle.”

Timeline and funding schedule

The council set a target for all new road links to connect to FM 521 by Dec. 2027. The widening of Sienna Parkway over the railroad tracks is slated for completion in 2029. Funding will be disbursed over three years: $2 million in 2027, followed by $4 million each in 2028 and 2029.

Looking ahead

These improvements are part of a larger, long‑term vision first discussed in May as part of Missouri City’s major thoroughfare plan, which also includes a new Bees Passage bridge and a Miller Road connector. By addressing both capacity and route options now, the city aims to keep traffic flow smooth as new housing units continue to rise in Sienna.

Local residents can expect reduced congestion on the main thoroughfares and safer, more direct routes to FM 521, a key artery for commuters heading toward Houston and surrounding suburbs. The project reflects Missouri City’s commitment to proactive infrastructure planning that supports families, preserves community quality of life, and aligns with the city’s broader mobility master plan.

Original reporting: Community Impact — Sugar Land — read the source article.