The city of Bonn currently assumes that evacuations will have to be carried out within a radius of 300 meters around the site of the bomb today, Monday, in order to defuse the bomb. The Autobahn 565 motorway at Endenich will probably also have to be closed, as it is only about a hundred meters away from where the bomb was found - in close proximity of the building of the Chemical Institutes.
Further information is available on the website of the Federal City of Bonn: https://www.bonn.de/pressemitteilungen/dezember-2021/kampfmittelfund-in-der-gerhard-domagk-strasse.php (in German)