In February 1781, Borghat was the site of a battle between the Maratha Empire centered in Pune and the British East India Company in Bombay. The British dispatched a large force to capture Pune, which had to pass through the Borghat pass, where they were intercepted by Maratha forces. In the battle that ensued, the Marathas inflicted a crushing defeat on the British in what would be known as the Battle of Borghat. The discovery of a route to make a motorable pass in Bor Ghat came after information was provided by a local Dhangar tribesman called Shigroba. Later, the Great Indian Peninsula Railway laid a railway line from Mumbai to Pune. The section through Bhor Ghat with 28 tunnels, and old bridges was opened in 1863. The Ghat opened Mumbai to the Deccan plains of Peninsular India. Building a railway over the Bhor ghat was an exercise in imperial engineering, as noted in an article in Engineering Magazine in 1899, where it was described as "a more certain and enduring form of attack than military power, and that the railway, the canal and harbour are the real weapons in the conquest of a colony." p. 347 The number of staff during construction increased from 10,000 in 1856, over 20,000 in 1857 to a peak of 42,000 in January 1861. The original incline included building 25 tunnels, eight arched masonry viaducts, blasting and removing of 54 miocubic feet of hard rock and building embankments from 67.5 mio cubic feet of material at a total cost of £ 1,100,000, i.e. £ 70,000 per mile. p. 352 The project was marred by industrial unrest, disease and accidents. As many as 24,000 workers died during the project. The first contractor awarded the section, William Frederick Faviell, mistreated his workers and underpaid his subcontractors, leading to riots by the workers that resulted in the death of one of the European managers attempting to subdue the unrest. Following a British Government investigation, Faviell's contract was taken away from him and granted to Solomon Tredwell, who arrived in 1859 to restart the works. Tredwell died within days, of dysentery or cholera. His wife, Alice then took over the contract, completing it with success by 1863. During the grand ceremony at the official opening, which was held at Khandala near the highest point of the incline on 21 April 1863, the governor of Bombay Presidency, Sir Bartle Frere, gave a speech, in which he felt "assured, that in the future ages the works of our English engineers on these Ghauts will take the place of those works of their demigods, the great cave temples of western India, which have so long, to the simple inhabitants of these lands, been the type of superhuman strength, and of more than mortal constructive skill." p. 351
Rail
The Bhor Ghat Railway cuts a distance of 21 km between and. There are 28 tunnels across the railway ghat. This ghat comes under the proposed Golden Quadrilateral Freight Corridors. During construction of this ghat almost 25,000 workers lost their lives due to steepness of this ghat. p. 343 Initially steam traction was used to haul trains across this ghat. In 1929-30 the Great Indian Peninsula Railway electrified Bombay - Poona section with a 1.5 kV DC system. This led to end of steam era on this ghat. The electrification system of the Mumbai - Pune section completed its conversion to a 25 kV 50 Hz AC system in June 2015. The first DC locomotives were EF/1 class locomotives for freight trains. Later Express trains were hauled by EA/1 class locomotives. ;Reversing Station There used to be a reversing station on this ghat which trains of Great Indian Peninsula Railway used earlier. This was shut down due to new tunnels on the ghat. The reversing station was located between and after tunnel no. 26. During night time lights of Khopoli can be seen from here.
Road
The road ghat lies between Khopoli and Khandala and is 18 km long. There are six lanes on the Mumbai – Pune express highway and four lanes on the old Mumbai - Pune road. There is a proposal to dig two four-lane tunnels between Khalapur toll booth near Khopoli and Sinhagad institute, Lonavala to bypass this ghat on Mumbai – Pune express-way which will be expanded from six-lane to eight-lane road. Similarly, old Mumbai – Pune highway will use the existing express highway route and will be expanded from four to six lanes. This will also reduce the distance on express highway by 6 km i.e. from 18 km to 12 km.
