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Design and Construction

Ouse Bridge Safety Mock Up

Background We’re currently underway with a major bearing replacement scheme on Ouse Bridge which carries the M62 over  River Ouse at Goole. The original structure was built over three years starting in January 1973, spans 1.6km, carries a maximum height at mid-span of 30m and is the final part of the M62 opened in 1976. […]

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Concrete Barrier Project

A £5.5m investment project has been completed on the M62 between J33 and J34. The scheme which took place between November 2017 and March 2018 provides this busy network area with new and safer central reserve barriers, freshly surfaced carriageway, cleared drains and ancillary works. The highlight of the project was replacing the existing central reserve […]

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M1 Rolling Crown

The M1 northbound near Junction 38 in West Yorkshire was experiencing drainage concerns as a result of the geometric layout. The collision statistics (10 collisions resulting in 26 casualties over five years) showed that wet weather was influencing the safety record above the national average at this location. To mitigate the risk we accelerated a […]

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Footbridge Renewal

Background North Dene Footbridge carries a public footpath over six lanes of the A1 near the Angel of the North in Gateshead, Tyne and Wear. Our routine inspections had identified corrosion to reinforcement within the three main steel/concrete composite spans which presented a potential risk from spalling concrete falling onto live traffic on this very busy […]

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M1 J24 Unique Pinch Point Scheme

Background A-one+ identified an innovative and sustainable improvement of the M1 at junction 24 to overcome severe congestion at the intersection which had traffic queuing on all approaches and regularly affecting the mainline M1 carriageway.   Solution Analysis of the junction showed that heavy congestion was largely as a result of significant traffic flow from […]

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Low Temperature Asphalt Demonstration

Background Investigating the viability and benefits of using warm mix asphalt on the strategic road network. Solution A-one+ collaborated with Lafarge Tarmac on a specific trial project on the A46 at Cossington with the aim of formally recording feasibility of use. This project marked the first time that low temperature asphalt was trialled on the […]

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A45 Wellingborough six schemes into one

Background A45 westbound carriageway improvement programme was in a very poor condition, surfacing was at the end of its life, safety barriers required replacement, traffic signs needed upgrading and there was flooding on carriageway and adjacent land. Solution The delivery team applied lean techniques to brigade six individual schemes combining traditional and innovative construction methods. […]

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