Briceburg is an unincorporated community in Mariposa County, California. It is located on the Merced River near the confluence with Bear Creek, 5 miles north-northwest of Midpines. It is accessed via a bridge over the Merced River that connects Highway 140 with Briceburg Road. The bridge is a 160-foot suspension bridge built by the US Forest Service in 193…Briceburg is an unincorporated community in Mariposa County, California. It is located on the Merced River near the confluence with Bear Creek, 5 miles north-northwest of Midpines. It is accessed via a bridge over the Merced River that connects Highway 140 with Briceburg Road. The bridge is a 160-foot suspension bridge built by the US Forest Service in 1937 and constructed by 30 Civilian Conservation Corps enrollees. Forest Service Engineer J. W. Nute was in charge of construction. The community name honors William M. Brice, who built a store at the location in 1926.