The original main road ran to Nuceria by Mevania; a branch by Interamna and Spoletium joined it at Forum Flaminii.
He erected the Circus Flaminius on the Campus Martius, for the accommodation of the plebeians, and continued the military road from Rome to Ariminum, which had hitherto only reached as far as Spoletium (see Flaminia, Via).
Terni is the ancient Interamna (inter amnes, " between the rivers," the Nar and one of its branches), originally belonging to Umbria, and founded, according to a local tradition preserved in an inscription, in the year 672 B.C. It is first mentioned in history as being, along with Spoletium, Praeneste and Florentia, portioned out among his soldiers by Sulla.
CLITUMNUS, a river in Umbria, Italy, which rises from a very abundant spring by the road between the ancient Spoletium and Trebia, 8 m.
Later on a more circuitous route from Narnia to Forum Flaminii was adopted, passing by Interamna, Spoletium and Fulginium (from which a branch diverged to Perusia), and increasing the distance by 12 m.