Miami Grand Prix officials claim the International Autodrome is now "95 per cent" complete head of the race's debut next month.
At present, there is late opposition to the event going ahead on May 6-8 due to local residents citing "intolerable" noise levels across the weekend.
Despite that, all permanent structures around the 5.41km circuit, such as the pit building, garages and race control tower are close to completion.
The focus now in the final weeks will shift to the final fit of the temporary structures around the Miami Campus and minor works, such as painting curbs and installing temporary safety barriers.
“We’re in the final stages of this incredible circuit," said race CEO Richard Cregan.
“We are delighted with the progress we have made and it’s a huge credit to the hard work of the team here in Miami, in consultation with both Formula 1 and the FIA to get this circuit finished in a tight timeline.
"We have tried to create a track that drivers love to race on and a campus that offers unique, best-in-class fan experiences, and we can’t wait for the first weekend in May to be here.”
Miami perfects track surface
The 19-turn track features three straights and three DRS zones, with simulations predicting drivers will be on full throttle for 58 per cent of the lap.
One of the key features of the venue is the construction of 14 pedestrian bridges - the most of any F1 circuit - to enable ease of access around the Miami Campus.
“There has been no compromise on any aspect of the circuit design or quality of construction,” added Cregan.
"In my experience of working with new venues over the years, I’ve never seen as much effort on perfecting the surface of the track as we have done in Miami.
"Everything was exactly per the design, and everyone involved in construction has done an incredible job.”
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