The Berlin fire brigade assumes that the blocking of the Autobahn 115 (Avus) can be lifted on Wednesday.
"It looks good," said a fire department spokesman in the late afternoon.
The blast site had been secured in order to be able to reduce the restricted area around the area affected by the fire in Berlin's Grunewald.
Significant success was achieved in the extinguishing and cooling work.
The A115 is about 500 meters from the police blast site.
Since the fire broke out in Grunewald just under a week ago, the autobahn, which is important for Berlin, has been closed for around eleven kilometers between the Zehlendorf junction and the Funkturm autobahn triangle.