The Budget Red Book revealed a timeline for the Northern Powerhouse, highlighting key project starts and completions.

2015-16 Key Project Starts:

• £220m upgrade to M6 J16-19 between Crewe and Knutsford
• Construction of the £230m A6 to Manchester Airport relief road 
• Phase one of the Leeds Flood Alleviation Scheme

Key Project Completions

• Electrification of railway between Manchester and Liverpool
• £120m M1 J39-42 Smart Motorway between Wakefield and Leeds
• Construction of the £300m Liverpool2 deep water terminal at Seaforth

2016-17 Key Project Starts:

• Construction of £200m New Polar Research Vessel, Birkenhead
• New rail franchises for TransPennine Express and Northern start 1 April 2016
• £100m improvement to A19/A1058 Coast Road Junction in Newcastle
• £75m development of improvements to M60, Northern TransPennine links (A66 and A69) and TransPennine tunnel between Manchester and Sheffield

Key Project Completions:

• £192m upgrade to A556 Knutsford to Bowdon
• Carrington Power Station enters operation, after a £620m construction

2017-18 Key Project Starts:

• ESIOS – Energy Subsurface Test Centre, Chester
• National Centre for Ageing Science and Innovation, Newcastle
• Smart Motorway on the M62 J10-12 (Manchester – Warrington)
• £13m Hull UK City of Culture 2017

Key Project Completions:

• £380m of improvement works on the A1 Leeming to Barton
• £210m Smart Motorway on M60 J8 – M62 J20
• Graphene Engineering and Innovation Centre, Manchester 
• Cognitive Computing Research Centre, Cheshire (Hartree Phase III)
• Plans produced for High Speed 3 between Leeds and Manchester to reduce journey times to around 30 minutes
• National College of High Speed Rail, Doncaster

2018-19 Key Project Starts:

• Ouse and Foss flood defence schemes in York, and phase two of the Leeds Flood Alleviation Scheme
• Publish 2nd Roads Investment Strategy (2020-25), which could include TransPennine tunnel and upgrades to northern TransPennine roads and M60
• Comprehensive upgrades to the TransPennine rail route, paving the way for High Speed 3

Key Project Completions:

• Tees Renewable Energy Plant and £190-200m Energy Works in Hull
• Great Exhibition of the North 2018

2019-20 Key Project Starts:

• Upgrades to the A5036 Princess Way and M56 J6-8 Smart Motorway (Manchester Airport – A556)
• Smart Motorway on the M62 J20-25 (Leeds – Manchester)
• Upgrades to the A1 north of Ellingham
• M62/M606 Chain Bar in Bradford

Key Project Completions:

• M62 J10-12, M60 J24-27 & J1-4 South of Manchester Smart Motorway
• Sir Henry Royce Institute for Advanced Materials, Manchester
• National Institute for Smart Data Innovation, Newcastle