Is that the actual bridge he rode over and the path?
No, that is the site of the Old North Bridge. The picture is from the western side of the Concord River, where the Minutemen assembled. The Red Coats were on the opposite side. The bridge has been rebuilt a couple of times. The Concord River is subject to flooding in spring, and can rise almost to top of the road level. This is the site of the first shots fired by the colonials on the British. In Lexington, the Red Coats shot colonials who were dispersing, after being ordered to do so by the greatly larger regular force.
Revere was arrested outside of Lexington and never got as far as Concord. He, and a second messenger, Dr. William Dawes, who had arrived at Lexington by different route, met up with Dr. Samuel Prescott, who was returning from a night of courting. Dawes and Revere were detained by the Red Coats, but Prescott bolted on horseback and alerted Concord. From there the word fanned out. Minutemen from as far away as Marlborough eventually joined in the fight before the regulars got back to Boston.