The total scheme cost, at time of completion, per mile of trunk roads and motorways constructed over the last 10 years, broken down by road, is shown in the following table: Scheme Cost Per Mile (£) A1 Bowerhouse to Spott 4,486,001.65 A1 Howburn-Houndwood 3,573,807.36 A1 Haddington-Dunbar 3,725,064.33 A1 Spott-Oswald Dean 2,161,813.34 A1 Thistly Cross-Bowerhouse 5,513,187.55 A68 Dalkeith Northern Bypass 12,001,662.17 A68 Soutra Hill 1,007,587.98 A7 Auchenrivock 5,446,698.10 A7 Hawick Traffic Relief 5,346,764.39 A720 Edinburgh City Bypass Phase 1 222,932.40 A720 Edinburgh City Bypass Phase 2 5,938,813.26 A720 Sheriffhall Interim Improvements 2,011,683.86 A75 Overtaking Opportunities 7,316,365.22 A75 The Glen 1,927,591.45 A76 Glenairlie 5,186,688.44 A77 Ayr Road Route 4,735,398.21 A77 Haggstone and Glen App 17,802,348.75 A78 Ardrossan-Stevenson 11,234,820.34 A8 Baillieston-Newhouse Maintenance 5,613,974.75 A82 Base Camp Bridge 7,321,957.40 A828 Creagan Bridge 3,072,892.07 A830 Arisaig-Kinsadel 3,116,359.28 A830 Arisaig-Loch nan Uamh 5,200,098.00 A830 Rubha Na...