Road closures and seven miles of diversions to allow for Eastern Bypass works at Greetwell Road are over the halfway hurdle.
Rat runs have caused tensions among drivers and residents on the Carlton estate.
Works began on March 5 and will be ongoing until April 5, during which time drivers are diverted through Outer Circle Road, Bunkers Hill, HawthornRoad, Croft Lane, Church Lane, Fiskerton Road and back onto Greetwell Road.
No vehicles have been allowed through while roadworks are in place from 6am on March 4 to 6pm on April 5.
The 7.5km Lincoln Eastern Bypass will link the A158 Wragby Road roundabout to the A15 at Bracebridge Heath.
Lincolnshire County Council said, despite delays, Lincoln Eastern Bypass is said to be “progressing well” before it opens to motorists in May 2020.