The new road was how un'arteria designed liaison between government institutions pontifical who were gathered in one area: the Palace of the Chancellery, which was ultimately to build in that period, the Mint papal palace of the Courts, which had just been designed. The detailed design of the road was made by Donato Bramante, who was working on the new St Peter's Basilica who was taking his appearance on the other side of the river.
You also linked the river port of Ripa Grande and the new way of Lungara, a path through Giulia Sisto bridge to transport the goods safely and conveniently in the heart of markets and areas of the benches.
Bramante's work for the building of the Courts proceeded with difficulty. We wanted to put under one roof throughout the justice of Rome. The building remained unfinished for a generation, with the regret of artists such as Vasari. A key part of urban planning of Julius II was lost. Best success came via the draft Ripetta that instead it created a shortcut straight to Piazza del Popolo and was opened in 1518.

Via Giulia became a street of small houses with gardens behind them, built for private owners or brotherhoods, sometimes on speculation, interspersed by a vole buildings more ambitious. This is the context of urban So-called "case by Raphael, with their shops on the street front.
Michelangelo in 1540 did the project for the gardens of Palazzo Farnese to be connected with a bridge to the Farnese villa, located in Trastevere, on the other side of the river, the Villa Farnesina. The elegant arch that overlooks via Giulia belongs to this next project is not implemented.

GIULIA VIA ROMA IN CAPITAL
With the advent of the capital Rome, the history of the road is linked inextricably with that of the demolitions, which completely change the face and nature.
The demolition began immediately after the approval of the first plan of Umbertine Rome, to Viviani, dated 1873, which provides a range of squarci converged on St. John of the Florentines to tie The historic center with the district in developing the Prati di Castello, through the implementation of Corso Vittorio Emanuele and the continuation of the way Coronari. The Master Plan of 1873 becomes law ten years later, with the only effect, following the creation Vittorio Emanuele of course, to further isolate the area of Via Giulia, between the new artery of the heart Rome and the river.
The history of events building of "Strada Giulia ends in full fascist era, with major evisceration between the New Prisons and the Holy Spirit of Neapolitans, creating a squalid area empty and anonymous bridge between Mazzini and Via dei Banchi Vecchi, a side which is installed in the same period the school Virgilio, disturbing A further urban fabric that we tried to highlight, in these pages, the beauty, but united to extreme fragility.
Via Giulia runs in a straight line for a kilometer, an innovative feature for the time, even if now seems obvious.

CURIOSITY
The civic numbering in Via Giulia and 'least strange.
Apart from the jumps here and there also dozens of numbers, rather due to urban interventions (such demolitions are defined) in even fairly recent times, the last one is fascist, the civic odd and are mixed, but above all, something original, first increase, while the other falls.

A Via Giulia there are no sidewalks, on the road is paved with cobblestones which increases the character and the vintage.
The only drawback is that when it rains because water school in the middle of the road, the road becomes a puddle, so that when a car passes must be quick to jump into the first door or behind a car stationary.

Source: http://www.morelli.it/foglio/giulia/storia.html