Simplify the following text for a Grade 7 native English-speaking person.
Original: Despite the clever design , the roadway through the arch in the Bargate still had to be lowered and some secretive fine-tuning of the profile of the arch masonry was also required at the last minute .
Simplified: However , the roadway through the arch in the Bargate still had to be lowered to allow the trams to pass through the arch . Some secret changing of the profile of the arch 's masonry was also needed at the last minute .