View looking east across the Glen Park Bridge and the railway crossing towards Main Road circa 1920. The bridge was originally built as a replacement for an older private bridge built by a man named Foley around 1880. In 1911 Heidelberg and Eltham agreed to share the costs to build a new bridge (the Diamond Creek was the border between the two). Construction began in June 1915 and it was officially opened by Cr. Taylor on Cup Day, November 1915. This photo, dated around 1920, is of the Glen Park Bridge crossing over the Diamond Creek about 50 metres north of the present-day Wattletree tree Road Bridge. Glen Park Road intersected Main Rain Road along an alignment following present day Coleman Cresent. In this this picture we see the narrow wooden bridge over a high flowing Diamond Creek at Glen Park, now Eltham North. In the background is a railway crossing sign. There is a self-contained carbide streetlamp situated in front of the bridge. In the early 1900s, carbide (acetylene gas) streetlamps emerged as a lighting technology for regional towns across Victoria, Australia, before municipal electricity grids were widely established. During the late Victorian and early Edwardian eras, major hubs like Melbourne relied on centralized coal-gas infrastructure. However, small regional Victorian shires lacked the funds or population density to build large gasworks. When the commercial production of calcium carbide became viable around 1900, it offered a quantum leap in brightness over traditional kerosene streetlamps. Acetylene gas burned with an intense, crisp white flame—significantly brighter than oil or candles. Many rural towns used self-contained lampposts. A lamplighter had to climb each post daily to manually place calcium carbide pellets in a lower chamber and fill an upper chamber with water. The water dripped onto the carbide, producing acetylene gas to feed the burner. Lamplighters carefully measured the fuel amounts so the chemical reaction would naturally exhaust itself and "turn off" around midnight. While carbide streetlights provided unparalleled visibility for early motorists, cyclists, and pedestrians, they were incredibly labour-intensive and inherently volatile. The gas was highly explosive, prone to leaks, and left behind a pungent, sulphur-like odour. By the end of World War I, local Victorian councils rapidly phased out acetylene infrastructure in favour of safer, independent electric powerhouse generators. In the context of Eltham's local history, the Eltham Shire and surrounding Yarra Valley region actively relied on carbide streetlamps and kerosene lighting during the early 20th century before the expansion of the Melbourne electric grid. Eltham was an outer-rural, heavily timbered farming and orchard district at the turn of the century, it faced unique civic infrastructure challenges. In rural Eltham, early streetlamps were exceptionally sparse. The community relied heavily on "innkeeper laws" which dictated local hotels—such as the historic Eltham Hotel—were legally required to keep external oil, kerosene, or acetylene lamps burning through the night to illuminate the main roads for travellers and coaches. The volatile carbide and kerosene lamps on Eltham's main thoroughfares were progressively phased out during the 1920s. The district steadily transitioned to electricity, which allowed for developments like the installation of modern electrical wiring at the local fire station on Arthur Street by 1928. The Glen Park Bridge was a low structure and subject to flooding readily. In 1959 Eltham Council erected a new crossing over the Diamond Creek and realigned the road to the present-day Wattletree Road Bridge. Construction was not fully complete when on Sunday, 20 September 1959, heavy flooding occurred in the stream and at 3:53 pm the old bridge was washed away forever.Photograph copy eltham north, wattletree road, coleman crescent, bridges, diamond creek (creek), bridge, carbide streetlamp, floodwater, glen park bridge, street lamp, glen park road, glen park estate