The 2011-12 season at Chicago’s Steppenwolf Theater Company will include the preem of an adaptation of E.L. Doctorow novel “The March,” as well as a new version of Chekhov’s “Three Sisters” penned by “August: Osage County” scribe Tracy Letts.

Frank Galati, who helmed the original Broadway staging of Doctorow-based tuner “Ragtime,” will adapt and helm “The March” (April 5-June 10, 2012), a Civil War-set tale that looks at the effects of General Sherman’s prolonged march of some 60,000 soldiers through Georgia and the Carolinas. Cast members will include William Petersen (“CSI”) and Steppenwolf a.d. Martha Lavey.

Later in the season, Letts’ new version of “Three Sisters” (June 28-Aug. 26, 2012) will reteam Letts with director Anna D. Shapiro, who helmed the Steppenwolf production of “August” that went on to become a New York awards-magnet. “August” cast members Sally Murphy and Ian Barford are among those set to star.

Season also will see a production of “Clybourne Park” (Sept. 8-Nov. 6), the first play by Chicago scribe Bruce Norris to have bowed in Gotham rather than Chi. Well-received in New York, it also has nabbed a number of awards in its London staging. Amy Morton, who appeared as an actor in “August: Osage County,” helms.

Also on tap for the season are Enda Walsh play “Penelope” (Dec. 1-Feb. 5), also directed by Morton and Donald Margulies’ “Time Stands Still” (Jan. 19-May 13, 2012), in a production helmed by Austin Pendleton.