Mae risgiau sylweddol i'r prosiect yn parhau i ddod i'r amlwg yn hwyr yn y broses, fel problemau gyda'r trac rhwng Rosset a Saltney, a'r angen i uwchraddio'r groesfan reilffordd yn Broad Oak. Mae hyd at 2 filltir o linell reilffordd rhwng yr Amwythig a Gobowen wedi'u hepgor o'r prosiect gan Network Rail oherwydd yr oedi o ran nodi pont nad yw'n addas ar gyfer y cyflymderau llinell uchel a fwriedir.  Hefyd, mae Network Rail bellach wedi penderfynu na ellir cyflawni'r cyflymderau llinell uchel a fwriedir yng nghanol y llinell oherwydd dwy groesfan reilffordd sy'n bodoli eisoes. Nid yw'r lleihad yng nghwmpas y prosiect, yr oedi o ran ei gyflawni na'r cynnydd yn y gost o wneud hynny, yn dderbyniol, ac rwyf wedi ysgrifennu at Syr Peter Hendy i fynegi fy mhryderon, oherwydd mae'n debygol y bydd buddiannau ychwanegol y cynllun, ar ôl i'r prosiect gael ei gwblhau yn yr haf, yn llai na'r disgwyl.
Significant risks to the project continue to emerge late in the process such as   problems with trackworks between Rossett and Saltney, and the need to upgrade a level crossing at Broad Oak. Between Shrewsbury and Gobowen, up to 2 miles have now been de-scoped from the project by Network Rail due to the late identification of a bridge that cannot accommodate the intended higher line speeds.  Network Rail has also now determined that the intended line speed increases cannot be achieved in the middle of the line because of two existing level crossings. This reduction in scope, increase in cost and delay in delivery is not acceptable and I have written to Sir Peter Hendy to raise my concerns, as it is likely that following completion of the project in the summer, the additional benefits of the scheme will be less than that anticipated at its outset.