Projects

The following information pages describe some of Cass Hayward's most prominent and award winning projects and illustrate our broad and varied portfolio.

2017 A4232 Eastern Bay Link, Cardiff Steel and concrete composite Highway Viaducts in a structure 850m long in a heavily congested corridor
Features in CEW, NEC and Concrete Society Awards
2016 Thorndell Viaduct, W. Sussex Continuous precast concrete Railway Underline Bridge reconstruction in soft ground conditions
Features in ICE SE England & Wales Cymru Awards
2016 Lee Valley Viaduct, London Reconstruction, upgrading and including complex installation of 14 spans of Railway Underline Bridges
Features in UK Rail Industry Awards
2015 Erwood Bridge Refurbishment, Powys Intricate temporary Works scheme to support bridge deck whilst piers reconstructed below
Features in BCI, CEW, ICE Wales Cymru Awards
2015 Stockley Flyover near Heathrow Overseeing and checking Temporary Works design for launch of long span curved through truss over main line
Features in British Construction Industry Awards
2015 Memorial Bridge, London New Railway Over-line Bridge at Emanuel School designed for launching & special architectural treatment
1997 to 2017 Cambrian Lines’ Timber Viaducts Upgrading & renewals of 9 timber Railway Underline Bridges including Barmouth Viaduct
2014 Adur Ferry Bridge, Shoreham by Sea Replacement pedestrian/cyclist viaduct over River Adur with stayed Swing Bridge over navigation channel & architectural features
Features in ICE SE England Engineering Excellence Awards
2014 River Cynon Viaduct Reconstruction Replacement single track non-standard Railway Underline Bridge purpose-designed for offline reconstruction
2014 River Teme Bridge Reconstruction Replacement twin track Network Rail standard design Railway Underline Bridge adapted for rapid implementation with new foundations.
2007 to 2017 Railway Gauge Clearance Projects 25 new Railway Over-line Highway Bridges for gauge-clearance schemes for electrification and freight traffic
2007 to 2017 Railway Gauge Clearance Projects - Portals New Railway Over-line Highway Bridges for gauge-clearance schemes for electrification and freight traffic including new precast concrete portal bridges for railway gauge-clearance

2007 to 2017 Railway Gauge Clearance Projects - Filler Decks New Railway Over-line Highway Bridges for gauge-clearance schemes for electrification and freight traffic including new precast filler beam bridges for railway gauge-clearance
2014 Spring Bank West Underbridge Reconstruction, Hull Single track non-standard Railway Underline Bridge & new foundations purpose-designed for direct track fixings and demolition/installation using heavy duty trailers
Features in ICE Wales Cymru Awards
2013 Ouseburn Viaduct, Newcastle Project to Extend the life of the 1869 Grade II* listed five-span spandrel arch railway underline bridge
Features in National Railway Heritage Awards
2013 A14 Huntingdon Viaduct Novel Temporary Works scheme design for lifting bridge strengthening components in restricted access area
2013 Streatham Common Station Overbridge Special reconstructed span of Railway Over-line Bridge to gain clearance for platform extension below
2011 Reading Station & Elevated Railway Design for Grip Stages 3 & 4 of the Railway Interchange Bridges forming the largest RC structure on the UK rail network. Also independent checking of the launched overhead concourse deck of the new station building
2011 Loughor Viaduct, Llanelli Design for Grip Stages 3 & 4 of the Railway Underline Bridge for reconstruction of this listed estuarial viaduct
2010 Pont y Werin, Cardiff Bay New pedestrian/cyclist viaduct over River Ely with Bascule Bridge over navigation channel & architectural features
2010 Black Rabbit & Peppering Bridges, Arundel Replacement of Railway Underline Bridge decks for all three twin-track spans of each of the two bridges over the R. Arun in West Sussex. Designed for installation of all 12 decks in a single blockade of the tracks.
Features in three categories in ICE SE England Awards
2010 A303 Andover Interchange Three lane Integral Highway Bridge with full structural continuity at abutments
2010 Airdrie to Bathgate Rail Link Two new Underline Railway Bridges and one Over-line Bridge redesigned as value engineering exercise
2009 Newcastle High Level Bridge Independent checking for project to Extend the life of the 1849 Grade I listed six-span double-deck arch highway and railway underline bridge
Features in ICE NE and Infrastructure Awards, National Railway Awards & Europa Nostra
2009 Angel Way Bridge, Bargoed New 4-span Highway River Bridge including high level RC arch & redesigned as a value engineering exercise
Features in ICE Wales Cymru Awards
2009 New Raynesway Bridge, Derby New twin long-span Highway River Crossing with geometry controlled by flooding risk
2007 A249 Sheppey Crossing, Kent New £30m, 1.25km long dual-carriageway Highway Viaduct in 19 spans 29m above The Swale
Features in ICE SE England Awards, BCSA Steel Design Award and I Struct E Awards
2007 Dutch River Swing Bridge, Goole Replacement Highway Viaduct over Dutch River with cable-stayed Swing Bridge over navigation channel
Features in ICE (Yorkshire and Humberside) Awards
2007 Leven Rail Viaduct, Cumbria Replacement of 98 decks for the 49 span Railway Underline Viaduct over Morecambe Bay using Cass Hayward value engineered design including for direct track fixing.
Features in ICE North West & I Struct E Transportation Structures Awards
2005 Paddington Bridge Project Prominent replacement four span Railway Over-line Bridge designed for integrated demolition and erection scheme involving launching of 3500 tonne assembly over tracks without any abnormal possessions.
Features in BCIA, National Rail Awards, ICE London/Historic Bridge awards & I Struct E Transportation Structures Awards
2004  Newport Street Bolton Iconic design for this replacement railway over-line bridge suspended from an asymmetric overhead arch.
2002 Underbridge 278 Newark Dyke Reconstruction Prominent long span bowstring truss Underline Railway Bridge replacement designed for integrated demolition and erection scheme and the first UK bridge to be constructed with a design for high speed trains
Features in ICE Awards, BCSA Steel Design Awards and National Rail Awards
1998 River Exe Viaduct Reconstruction Three span twin track Underline Railway Bridge with special design for novel roll-in method on ball bearings
1997 A5140 Longholme Bridge Bedford Elegant three span steel box girder Highway River Viaduct over the river Great Ouse at Bedford
Features in BCSA Steel Design Awards
1996 A69 Haltwhistle By Pass Railway Viaduct Curved & heavily skewed high level Highway Viaduct over Rail in 4 long spans each around 70m in length
1996 Bridge over River Avon, Warwick Steel arch Bridge for Pedestrians and Cyclists over the River Avon in Warwick
Winner of Warwick District Council Architectural Design Competition
1995 M602 Centenary Bridge, Salford Vertical Lifting Bridge to carry the M602 over the Manchester Ship Canal
Features in I Struct E Awards and was ICE Telford Medal Award Winner
1995 Waterloo International Terminal Track support structures design as Railway Underline Bridges at station second floor level
Features in BCIA Awards
1995 M74 River Annan Bridge, Scotland Paired ladder-deck Highway Bridge over River with special jacked installation to avoid bearing uplift
Features in Saltire Awards
1993 River Trent Railway Crossing, Gainsborough Four-span replacement Railway Underline Bridge installed using unique methodology integrated into the permanent works design to avoid cost/risk of floating cranes
Features in BCSA Steel Design Awards
1990 A53 Festival Park Flyover, Stoke on Trent Four-span Highway Viaduct designed in ladder-deck form to minimise temporary works over live roundabout
Features in ICE Project Awards
1988 A435 Simon de Montfort Bridge, Evesham Three-span Highway Bridge River crossing & the first contemporary ladder deck bridge in UK
Features in BCSA Steel Design Awards
1986 M4/M5 Interchange Viaducts near Heathrow Three multiple span composite steel box girder Highway Viaducts as the principal structures of the motorway interchange 
Feature in BCSA Steel Design Awards