Bay Area Edition | November 2025

BY RACHEL LELAND & HALEY VELASCO

League City’s flood map A majority of the city’s borders are high-risk flood zones with a 1% chance of flooding in any given year, according to League City’s flood map, which became effective in 2019.

What’s next

The impact

As plans progress, officials highlighted two decades of work to improve flood protection. “All the neighborhoods that were built pre-1990 that had the most impact from the flooding ... had major projects completed, and you see a noticeable difference,” Baumgartner said. In the coming years, League City plans a series of drainage upgrades citywide. Hughes Lane-Deats Road drainage improvements • Cost: $3M • Time: construction in 2026 Westside master drainage plan • Cost: $175K • Time: construction in 2026 Magnolia Creek and Cedar Gully, Phase 2 • Cost: $9.5M (estimated) • Time: bid in 2026 Borden’s Gully/Hughes & West Deats culvert modifications • Cost: N/A • Time: bid in 2026

A, AE, VE: high-risk flood zones with a 1% chance of flooding in any given year, or 100-year floodplain

0.2% annual chance of flood risk: lower-risk flood zones, or 500-year floodplain

GALVESTON BAY

45

MARINA BAY DR.

518

146

3

646

LEAGUE CITY PKWY.

SOURCE: LEAGUE CITY/ COMMUNITY IMPACT

N

NOTE: A: 1% ANNUAL CHANCE OF FLOOD (NO BASE ELEVATION), AE: SUBJECT TO 1% ANNUAL CHANCE OF FLOOD (WITH BASE ELEVATION), VE: COASTAL FLOOD ZONES

N

Other projects

Bay Ridge, Phase 4 • Cost: N/A • Time: final design in 2026 Benson Bayou Regional Pond • Cost: $12M • Time: construction in 2028

Outside of the watershed study, other projects the city is taking on with construction slated to begin in 2026 include: • Hughes Lane to Deats Road for drainage improvements, $3 million • Interurban neighborhood for drainage improve- ments, $7.9 million • Westside master drainage plan for develop- ment, $175,000

The Lower Clear Creek & Dickinson Bayou Watershed study will consist of two phases. The first phase of the study, completed in 2022, identified a variety of smaller and larger projects that collectively would reduce water levels during a flood event by several feet, Community Impact previously reported. The second phase is slated to kick off in 2026, pending funding commitments from multiple cities, as well as the Harris County Flood Control District, among other sources, Sims said.

FM 518 and Wesley Drive • Cost: N/A • Time: awaiting FEMA, GLO funding

SOURCE: LEAGUE CITY/COMMUNITY IMPACT

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