Signs of Drainage Problems in Sherman, TX

Drainage problems usually reveal themselves gradually. Standing water that lingers a day after rain might seem like a minor annoyance. But repeated saturation cycles damage turf, erode soil, attract pests, and can eventually threaten the foundation. Knowing what to watch for — and when to take it seriously — can save significant money and headaches.

Sherman is home to Austin College, one of the oldest institutions of higher education in Texas, founded in 1849, and the tree-lined streets around the historic campus carry some of the city's oldest housing stock, on infrastructure that predates even the area's early-1900s rail and manufacturing boom. Sherman sits near the Texoma region's namesake Lake Texoma, though the lake itself sits far enough north along the Red River that its influence on in-town Sherman drainage is more indirect than the lake-adjacent DFW suburbs closer to Dallas. Loy Lake, a smaller reservoir just outside town, has a more direct localized effect on nearby neighborhoods' groundwater. Grayson County's Blackland clay here is real but slightly less severe than the deep black gumbo found in Collin and Dallas counties to the south.

Common Drainage Warning Signs

These are the signs we hear about most often from Sherman homeowners:

• Standing water in the yard that takes more than 24-48 hours to drain after rain
• Soggy or perpetually soft areas of lawn that don't dry out between rain events
• Bare eroded channels where water consistently flows across the yard
• Water pooling against the foundation or in the basement after heavy rain
• Downspouts that drain directly against the house with no extension
• Mosquito problems that persist through summer — standing water is the primary breeding habitat

What Causes These Problems

Most drainage problems in Sherman and Grayson County come down to one or more of three conditions: soil that drains slowly (clay is the primary culprit in this region), low spots in the grading where water naturally concentrates, or runoff from neighboring lots, driveways, or roof drainage that overwhelms the yard's capacity to absorb. Identifying which condition applies determines the right solution — and a proper assessment before any work begins is the only way to get that right.

This content is reviewed by the Texas French Drains editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for Drainage. Read our editorial standards.