Cook Road is scheduled to be reduced to one lane east of Lima Road at the entrance to the Airport North office complex.
The lane restriction near Smith Field will be from 9 a.m. to 2 p.m. Friday, according to a statement issued by the Fort Wayne Engineering Department.
The statement said a water main is leaking and will be repaired. Two-way traffic will be maintained.
For more information or to report problems, call 427-1172.