Jess Julius Engelstad was a Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 engineer and railroad administrator.

Engelstad was born in Christiania

Oslo

Oslo is a municipality, as well as the capital and most populous city in Norway. As a municipality , it was established on 1 January 1838. Founded around 1048 by King Harald III of Norway, the city was largely destroyed by fire in 1624. The city was moved under the reign of Denmark–Norway's King...

 as the son of customs surveyor Christopher Engelstad (1786–1835). He was the grandfather of museum director Eivind Stenersen Engelstad

Eivind Stenersen Engelstad

Eivind Stenersen Engelstad was a Norwegian archaeologist and art historian.-Personal life:Engelstad was born in Kristiania as the son of jurist Bjarne Engelstad and grandson of engineer Jess Julius Engelstad ....

 (1900–1969).

An engineer by education, Engelstad oversaw the construction of numerous bridges during the 1850s, including Nygårdsbroen, Sarpebrua and Fossum Bridge

Fossum Bridge

Fossum Bridge is a road bridge in Askim, Norway, crossing the river Glomma. The old wooden bridge, an arch bridge with two spans, opened in 1856. The bridge was partly destroyed in a battle in 1940. The current bridge dates from 1961, and is a suspension bridge with a main span of 125 metres....

. From 1859 to 1896 he was the manager of the Hoved Line, the first railway line in Norway. He was also a director of traffic in the Norwegian State Railways from 1883 to 1989.