Imagine workers scrambling, boats jostling, and the relentless flow of the River Irwell. This scene unfolded nearly two centuries ago during the construction of the Irwell Bridge. It stands as a testament to Manchester’s pioneering spirit.
The Irwell Bridge was not part of the original plan for the Liverpool & Manchester Railway. Parliament authorized a variation to the railway’s route in 1829. This extended the line into Manchester. It necessitated a bridge over the River Irwell.
The Irwell Bridge was constructed for the Liverpool & Manchester Railway. This was the world’s first passenger railway. It used only steam locomotives. It operated as a scheduled service. The Irwell Bridge was a vital link to Liverpool Road railway station.
George Stephenson likely designed the Irwell Bridge. He was the L&MR’s chief engineer. Jesse Hartley or Thomas Longridge Gooch may have contributed to its design.
Construction wasn’t without tragedy. In April 1830 eleven workers drowned. An overcrowded boat collided with a cofferdam. This cofferdam was used to build the bridge’s central pier. The boat sank.
The Mersey and Irwell Navigation Company initially opposed the Irwell Bridge. They were concerned about the central pier’s impact on river traffic. They insisted on a clearance of at least 8.8 metres above the water. This requirement elevated the railway line significantly. It led to the construction of a brick viaduct over Water Street. This governed the location of platforms at Liverpool Road Station.
The Irwell Bridge has two equal arches. Each spans 20.1 metres on a skew. They span 19.7 metres square. The width between the parapets is 16.2 metres. It accommodates a twin standard gauge track layout and a 5.5-metre wide roadway.
Built of sandstone, the Irwell Bridge features rusticated ashlar facings. Radiating stonework frames the arches. It forms the spandrel panels. Horizontal stone courses make up the parapet and pilasters. The coping and cornices are plainly dressed.
On September 15 1830 the Irwell Bridge opened with the L&MR line. An adjacent two-span bridge was built in 1849. It carried the Manchester South Junction and Altrincham Railway. In 1869 a plate-iron-girder viaduct was constructed. It had a large circular cast-iron support column. It has been demolished.
Look closely at the stonework. You may spot the initials ‘J D’ carved on the keystone of the western arch. ‘J D’ stands for John Dixon. He was the resident engineer responsible for building the Irwell Bridge. The keystone on the other arch bears ‘G S’. This represents George Stephenson.
Over time, stalactites formed under the Irwell Bridge. These formations resulted from lime leaching from mortar. They reached lengths of up to 230 mm. Efforts have been made to remove them.
In June 1988 the Manchester side of the Irwell Bridge became a Grade I listed structure. The Salford end gained this designation in February 2007. The Irwell Bridge is recognized for its special architectural and historic interest. This is due to its early date intactness and design by George Stephenson.
The Ordsall Chord project improved railway services. It required a link between Victoria Oxford Road and Piccadilly. A section of the chord passes over the Irwell. It bisects the Manchester end of the Irwell Bridge approach. It severed the former Liverpool Road Station’s connection to the railway network.
During the Ordsall Chord works the viaduct was demolished. The bridge’s full elevation was revealed. The arch soffits were cleaned. All stalactites were removed.
Today the Irwell Bridge stands as a reminder of Manchester’s industrial past. It showcases innovative engineering. Its enduring presence connects us to the dawn of railway travel.