Stop foot traffic on the muddy area
Identify and fix the cause of excess water
Improve drainage by leveling low spots
Clear debris, thatch, and dead grass
Aerate compacted soil
Add topsoil to fill ruts and depressions
Spread compost to improve soil structure
Reseed bare or thin areas
Cover seed lightly with soil or straw
Water gently and consistently until established
Avoid overwatering
Use mulch or temporary mats in high-traffic areas
Install drain tiles or French drains if needed
Redirect downspouts away from the lawn
Mow only when the lawn is dry and recovered
Fertilize lightly after new grass starts growing
Keep people and pets off the area until it firms up