The Big Blue River Bridge is located in the Grafton Township, in the northwestern portion of Fillmore County.
The bridge is located approximately five miles north and one mile west of the village of Grafton, or approximately 4.75 miles (7.64 km) directly northwest of Grafton.
The facility is located along Fillmore County Road 6 (CR 6), and is about 0.2 miles (0.32 km) from CR 6's northern terminus at County Road 1, and about 29.3 miles (47.2 km) north of CR 6's southern terminus at Thayer County Road AA.
The site is rectangular shaped, with dimensions of 52 feet (16 m) by 22 feet (6.7 m), which contains only the bridge.

The Big Blue River Bridge carries CR 6 over the West Fork of the Big Blue River.
The bridge is located just west of School Creek's confluence with the river.
The facility carries the road's single lane.
The bridge consists of a single-span, concrete filled spandrel arch, with a substructure consisting of two abutments and several flared wingwalls.
The span has a length of 50 feet (15 m) while the bridge has a total length of 52 feet (16 m).
The roadway width along the bridge is 20 feet (6.1 m).
The facility's floor is covered with gravel filled with dirt, the same substance as the surface of the road.
The bridge structure also contains a solid, concrete, rectangular parapet.
The Big Blue River Bridge is located in the Grafton Township, in the northwestern portion of Fillmore County. The bridge is located approximately five miles north and one mile west of the village of Grafton, or approximately 4.75 miles (7.64 km) directly northwest of Grafton. The facility is located along Fillmore County Road 6 (CR 6), and is about 0.2 miles (0.32 km) from CR 6's northern terminus at County Road 1, and about 29.3 miles (47.2 km) north of CR 6's southern terminus at Thayer County Road AA. The site is rectangular shaped, with dimensions of 52 feet (16 m) by 22 feet (6.7 m), which contains only the bridge.
The Big Blue River Bridge carries CR 6 over the West Fork of the Big Blue River. The bridge is located just west of School Creek's confluence with the river. The facility carries the road's single lane. The bridge consists of a single-span, concrete filled spandrel arch, with a substructure consisting of two abutments and several flared wingwalls. The span has a length of 50 feet (15 m) while the bridge has a total length of 52 feet (16 m). The roadway width along the bridge is 20 feet (6.1 m). The facility's floor is covered with gravel filled with dirt, the same substance as the surface of the road. The bridge structure also contains a solid, concrete, rectangular parapet.
Big Blue River Bridge (Grafton, Nebraska)