Des Plaines Mayor Tony Arredia said U.S. Rep. Jan Schakowsky has committed to pushing for help on regional flood-control measures. Portions of Des Plaines, Rosemont and Park Ridge will be part of the 9th Congressional District under redistricting that will take effect Jan. 2. Schakowsky, an Evanston Democrat, is facing a challenge in the November general election from Park Ridge Republican Nicholas M. Duric, an attorney and former Maine Township High School District 207 board member. Schakowsky met with Arredia on Wednesday to talk about a variety of issues, including Des Plaines River flood control projects, train traffic and road projects, her spokesman said. Many projects rely on federal funding, as well as support from the state and municipalities.