After extensive site preparation, construction work began on 7 May 2014 and the bridge opened to traffic just after midnight on 14 October 2017.

The bridge has three towers that support a cable-stayed crossing over the river, while the southern approach creates a second bridge over the Ship Canal.
The three towers are different heights: an 80 m (260 ft) central pylon, a 110 m (360 ft) pylon on the north side and a 125 m (410 ft) south pylon.

The crossing's total length is 2.3 km (1.4 miles) and its river span is 1 km (0.6 miles).
The deck is made from reinforced concrete with a maximum clearance of 23 m (75 ft) above the river.
As the water depth was too low at this point for marine construction vessels, a 1.5 km (1-mile) trestle was built out into the Mersey to drive in the bridge's pilings.

New roads were built to connect the bridge to the highway network.
An interchange and a junction were built to join the southern end to Runcorn's existing Central Expressway.
On the northern side, the old route of the A563 was demolished and replaced with a dual carriageway to Speke Road.
Embankments on the Widnes side were constructed from decontaminated material excavated along the route from former industrial brownfield sites: treating and reusing the material meant that it did not need to be removed from the construction zone.
The new crossing was expected to improve journey times by up to 10 minutes during peak times compared to the old bridge.

A 28.5 ha (70-acre) nature reserve was established around the bridge and the surrounding riverside, managed by the Mersey Gateway Environmental Trust, an independent charity tasked with promoting biodiversity, landscape, science, and educational opportunities.
This scheme, which will help conserve important ecological sites such as the Astmoor salt marshes, is part of the 1,600 ha (4,000-acre) Upper Mersey Estuary project that covers everything upstream of the Mersey Gateway Bridge as far as Warrington.
After extensive site preparation, construction work began on 7 May 2014 and the bridge opened to traffic just after midnight on 14 October 2017.
The bridge has three towers that support a cable-stayed crossing over the river, while the southern approach creates a second bridge over the Ship Canal. The three towers are different heights: an 80 m (260 ft) central pylon, a 110 m (360 ft) pylon on the north side and a 125 m (410 ft) south pylon.
The crossing's total length is 2.3 km (1.4 miles) and its river span is 1 km (0.6 miles). The deck is made from reinforced concrete with a maximum clearance of 23 m (75 ft) above the river. As the water depth was too low at this point for marine construction vessels, a 1.5 km (1-mile) trestle was built out into the Mersey to drive in the bridge's pilings.
New roads were built to connect the bridge to the highway network. An interchange and a junction were built to join the southern end to Runcorn's existing Central Expressway. On the northern side, the old route of the A563 was demolished and replaced with a dual carriageway to Speke Road. Embankments on the Widnes side were constructed from decontaminated material excavated along the route from former industrial brownfield sites: treating and reusing the material meant that it did not need to be removed from the construction zone. The new crossing was expected to improve journey times by up to 10 minutes during peak times compared to the old bridge.
A 28.5 ha (70-acre) nature reserve was established around the bridge and the surrounding riverside, managed by the Mersey Gateway Environmental Trust, an independent charity tasked with promoting biodiversity, landscape, science, and educational opportunities. This scheme, which will help conserve important ecological sites such as the Astmoor salt marshes, is part of the 1,600 ha (4,000-acre) Upper Mersey Estuary project that covers everything upstream of the Mersey Gateway Bridge as far as Warrington.
Mersey Gateway Bridge