Dorman Long

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Dorman Long Technology Ltd.
legal form Private company limited by shares
founding 1875
Seat Higham Ferrers , Northamptonshire , England
management David Dyer (Managing Director)
Branch steel construction
Website www.dormanlongtechnology.com
As of March 22, 2015

Dorman Long , now Dorman Long Technology , manufactures and operates special equipment and fixtures for the construction of bridges , dams , refineries , power plants , offshore facilities and other large structures. Dorman Long is based in Higham Ferrers , Northamptonshire , England and operates internationally with offices in the People's Republic of China and India .

history

The company was founded in 1875 as Dorman Long & Co. Ltd. Founded in Middlesbrough when Arthur Dorman and Albert de Lande Long acquired the West March Iron Works , a manufacturer of iron profiles and sheets for shipbuilding and civil engineering . From 1880 the company produced steel using the Thomas Gilchrist process . After expanding production and taking over various other companies, Dorman Long was one of the largest British steel companies in 1914 with blast furnaces and rolling mills in which around 20,000 employees produced steel and practically all types of profiles, sheet metal and wire.

In the early 1920s, business activities were expanded to include bridge construction. The construction of the Sydney Harbor Bridge from 1923 to 1932 was the first of a series of large bridge construction projects.

The company was nationalized for the first time in 1951, but privatized again in 1954. In 1967 it was nationalized for the second time and incorporated into British Steel . During the decline of steel production in the UK, the company increasingly focused on building bridges and other large structures .

The engineering part of this business in 1982 as Redpath Dorman Long to the conglomerate Trafalgar House sold the him in 1990 with its longtime rivals bridge Cleveland Bridge & Engineering Co. to Cleveland Structural Engineering merged . After Trafalgar House was taken over in 1996 by the Norwegian group Kværner ASA , the company was renamed Kvaerner Cleveland Bridge . When the bridge construction company became independent in 2000 through a management buyout , the engineering part was established as Dorman Long Technologies together with another engineering office and a manufacturer of heavy-duty cranes .

Bridge building

Some of the bridges built by Dorman Long are:

bridge place Year of
completion 		Remarks
Old Omdurman Bridge Al-Chartum , Sudan 1926 over the White Nile
Desouk railway bridge Disuk , Egypt 1927 across the Rosetta arm of the Nile
Tyne Bridge Newcastle upon Tyne , England 1928
Alfred Beit Bridge Beitbridge , Zimbabwe 1929 over the Limpopo
Sydney Harbor Bridge Sydney , Australia 1932
Grafton Bridge Grafton, New South Wales , Australia 1932
Lambeth Bridge London , England 1932
Phra Phutthayotfa Bridge ( Memorial Bridge ) Bangkok , Thailand 1932
Kasr El Nile Bridge Cairo , Egypt 1933 originally Khedive - Ismail Bridge
Tees Newport Bridge Middlesbrough, England 1934
Birchenough Bridge Zimbabwe 1935 across the Sava River
Storstrømsbroen Denmark 1937 between the islands of Falster and Masnedø
Qiantang-Jiang Bridge Hangzhou , Zhejiang , Republic of China 1937 across the Qiantang River
Auckland Harbor Bridge Auckland City , New Zealand 1959 together with Cleveland Bridge & Engineering Co.
Silver Jubilee Bridge Runcorn , England 1961 across the River Mersey
Ayub Bridge Sukkur , Pakistan 1962 via an Indus arm
Tsing Ma Bridge Hong Kong 1997 in Cleveland Structural Engineering , merged by Trafalgar House , in joint venture with Costain Group and Mitsui Group
Shibanpo-Yangtze Bridge Chongqing 2006 Lifting the 108 m long steel middle section into the 330 m wide opening

Web links

Commons : Dorman Long  - collection of images, videos and audio files

Individual evidence

  1. ^ Dorman Long Historical Information on Dorman Long's website
  2. ↑ Dorman, Long and Co on Grace's Guide