A2_-_Figures_for_Fall_GPR.pdf

Figure 1. Plan view of Falls Dam.

Conduit

Fishing Pier

Joint C7/C8, seepage noticed during inspection on the south side approximately 1 foot above conduit floor.

Figure 2. Conduit cross sections and joint location in dam.

The seepage is located at a transition point between two section forms.

Approximate elevation of seepage point in the conduit.

The seepage occurs at joint C7-C8 and is approximately 1 foot up the wall from the lowest point in the conduit.

The material here could be either Zone 2, 3 or 6 material.

Figure 3. Typical embankment section.

Approximate location of joint C7-C8.

Seepage is possibly through Zone 2 material.

Figure 4. Typical embankment section on abutment.

Figure 5. Soil cover and flow at joint C-7/ C-8.

Joint C-7/C-8.

Figure 6. Falls stilling basin from the conduit.

Figure 7. Entrance to conduit through the stilling basin.

Figure 8. Fishing pier and boat access area.

Photos to be added to FALLS Conduit Repair 8- 2017