Portrait of John McAdam, Scottish inventor

Portrait of John McAdam, Scottish inventor

H413/0141 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.5MB

Downloadable file size: 3.1MB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: John McAdam. Portrait of John Loudon McAdam (1756-1836), Scottish pioneer of road technology. McAdam had made his fortune in the United States. On his return to Scotland he began to study various road surfaces. In 1815 he was made Surveyor General of roads in Bristol and by 1816 was implementing his road design. It had a raised foundation of earth and was capped by a surface of crushed stones and sand compacted by road rollers. These macadamized roads were widely adopted in Europe and McAdam was made surveyor-general of British metropolitan roads in 1827. His design was unable to bear the weight of 20th Century heavy trucks and has since been largely abandoned.

Release details: Model release not available. Property release not required.

Keywords: inventor, john loudon, macadamized, mcadam, portraits, road, road construction, surname m

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.