Located near the town of Dobbins in Yuba County, the dam forms the New Bullards Bar Reservoir, which can hold about 969,600 acre⋅ft (1.1960×109 m3) of water.

The Our House Diversion Dam is situated on the Middle Yuba about 8 miles (13 km) above its mouth and diverts water into a 5.5-mile (8.9 km) tunnel with a capacity of 810 cubic feet per second (23 m3/s), running northwest to the Log Cabin Diversion Dam on Oregon Creek.

[5] The diversions add about 173.9 square miles (450 km2) to the effective catchment area of New Bullards Bar Reservoir.

Marysville Dam is still a defining function in the downstream channel capacity constraints even though it is non-existent.

[6] The dam furnishes water via a penstock through a mountain to the New Colgate Powerhouse, which is located 5.2 miles (8.4 km) downstream.

[7] At maximum generation, the powerhouse utilizes a flow of 3,430 cubic feet per second (97 m3/s), and is an important source of peaking power for the region.