The Diamond Drive contractor is planning on adjusting valve covers on 38th Street Saturday.
As a result, the westernmost lane on 38th Street going into the Aspen School area will be closed.
Motorists desiring to access 38th Street from northbound Diamond, Arkansas, or southbound Diamond will need to use 35th or 36th Streets.
Motorists may use 38th Street to exit onto Diamond or Arkansas at the stoplight.
38th Street should be open by the end of the day Saturday.