(MT. VERNON, IL) — IDOT has announced that there will be an upcoming lane reduction, weather permitting, to southbound Interstate 57. I-57 southbound will be reduced to one lane between mile markers 89 and 90 near Mt. Vernon from today through Thursday for the purpose of bridge repair work. Motorists are expected to see travel delays during this time and are asked to take alternate routes. If an alternate route cannot be sought, motorists are asked to reduce speed, be alert to equipment and workers and use extreme caution while traveling through this area.