The steel contractor on Brightline’s downtown Miami station claims it’s owed $25.8 million for extra work blamed on on-site issues and incomplete and faulty plans that didn’t comply with state regulations.

ADF International Inc. was hired in 2016 by Suffolk Construction Co. Inc., the MiamiCentral general contractor, to work on Brightline’s private passenger rail station and one of the office buildings in the complex, according to signed agreements.