The Northeast Polk County Beltway is a proposed traffic corridor around the northeast side of the metro area through the last expanse of Polk County's prime farmland. The proposed beltway would extend from Altoona at I-80 north to the edge of the city of Elkhart (or possibly much farther north), west to the Polk City area, and then south to IA 141/IA 415. To download and view a map of the range of alternatives under consideration for the Northeast Polk County Beltway click here.

The NW 26th Street project/MLK Extension is a proposed north/south traffic corridor. Proponents of the project, including some Polk County Supervisors, city officials, and developers, want a four-lane extension of MLK, Jr. Parkway from Euclid Avenue in Des Moines north to Interstate 35/80, and interchange, and a widened NW 26th Street leading to IA 415 in the Ankeny area. To download and view a map of the range of alternatives under consideration for the NW 26th Street project/MLK Extension click here. 

• Letter from the King-Irving Neighborhood Board
• NW 26th Street Project/MLK Extension Brochure from the Neighborhood and Natural Preservation Project
  
• "Seek other options: Don't build road through river greenbelt" Guest Column in the Des Moines Register by John Wenck
• MLK Extension Presentation in pdf
  
• Letter from the DNR to Senator Grassley, Senator Harkin & Representative Boswell
• Letter from the DNR to the Polk County Board of Supervisors
  
• Petition to Oppose Northern Extension of Martin Luther, Jr. Parkway and the Construction of a New Interchange