The new Sustainable Transport Infrastructure Delivery Framework is expected to deliver a £700m work pipeline over the next two years.
Its scope may include capital works to the South Wales Metro framework, presently out to bid.
The works will also include design and implementation of enhancements of the rail network in Wales and its borders with England, as well as multi-modal transport interchanges.
TfW will be holding a Supplier Event Day on Tuesday 13 February from noon at the Metropole Hotel in Powys.
To register for the bidders day email here
To register an interest click Sell2Wales