The Mersey Gateway Project has been recognised both nationally and internationally:
2018
| Awarding body | Award | Result |
| ICE North West | Special Recognition Award | Winner |
| RICS North West | Project of the Year | Winner |
| Infrastructure | Winner |
2017
| Awarding body | Award | Result |
| CIEEM (Chartered Institute of Ecology and Environmental Management) | Stakeholder Engagement | Winner |
| CIRA | BIG Biodiversity Champion – Victoria Pollard (Environmental Manager) | Winner |
2015
| Awarding body | Award | Result |
| Project Finance International Awards | European Infrastructure Deal of the Year | Winner |
| Partnership Magazine Awards | Best Roads Project | Winner |
| IJ Global Awards | European Roads Deal of the Year | Winner |
2014
| Awarding body | Award | Result |
| Ground Engineering Awards | Sustainability Award | Winner |
| Technical Application Award | Highly Commended | |
| Chartered Institute of Highways and Transportation North West – Regional Awards | Best Practice | Winner |
| Best Use of a Combination of Remediation Technologies | Highly Commended | |
| Sustainability/Environmental Award | Highly Commended | |
| Construction News Specialist | Project of the Year | Winner |
| Chartered Institute of Highways and Transportation | Technological Application Award | Winner |
