A01.10_8-App_7_-SP_2_Photos_Pine_Flat_Dam_Tainter_Gates.pdf

CESPK-ED-DS 14 March 2015

Figure 1 Fracture and Failure Critical Members Label

Appendix 7 Photos - Pine Flat Dam Tainter Gates

Figure 2 Fracture and Failure Critical Members Label and Coupon Locations (4) 2” Dia. Coupons were taken

(1) 2” Dia.

Coupon Taken

(1) 2” Dia.

Coupon Taken

(1) 2” Dia.

Coupon Taken

(1) 2” Dia.

Coupon Taken

Figure 3 Top Face of Upper Strut Arm

Figure 4 Bottom Face of Upper Strut Arm

Figure 5 Top Face of Middle Strut Arm

Figure 6 Bottom Face of Middle Strut Arm

Figure 7 Minor Debris Build Up Around Strut Arm to Horizontal Girder Connection

Figure 8 Top Face of Lower Strut (Right Side) and Bracing Members

Figure 9 Right Side Interior View of Gate Strut Arms

Figure 10 Left Side Interior View of Gate Strut Arms

Figure 11 Top Face of Upper Girder

Figure 12 Bottom Face of Upper Girder

Figure 13 Top Face of Middle Girder

Figure 14 Bottom Face of Middle Girder

Figure 15 Top Face of Lower Girder

Figure 16 Coupon Drilling Set Up and Location

Figure 17 Tie Beam

Figure 18 Upper Downstream Truss

Figure 19 Lower Downstream Truss

Figure 20 Upper Ribs (Typical Condition)

Figure 21 Minor Surface Corrosion on Rib Below Upper Girder

Figure 22 Minor Surface Corrosion on Ribs Below Middle Girder

Figure 23 Upstream Skin Plate

Figure 24 Left Trunnion Assembly

Figure 25 Top Face of Upper Strut Arm

Figure 26 Bottom Face of Upper Strut Arm (Right Side)

Figure 27 Bottom Face of Upper Strut Arm (Left side)

Figure 28 Top Face of Middle Strut Arm

Figure 29 Bottom Face of Middle Strut Arm

Figure 30 Top Face of Lower Strut Arm (Mud found and removed)

Figure 31 Bottom Face of Lower Strut Arm

Figure 32 Right Side Interior View of Gate Strut Arms and Braces

Figure 33 Left Side Interior View of Gate Strut Arms and Braces

Figure 34 Top Face Middle Right Strut Arm Connection (Surface Corrosion & Debris Build Up)

Figure 35 Bottom Face Middle Left Strut Arm Connection (Left) Bottom Face Bottom Right Strut Arm

(Surface Corrosion & Rust Wedging, Typical @ Connections from Strut Arm to Horizontal Girder)

Figure 36 Top Face of Upper Girder

Figure 37 Bottom Face of Upper Girder

Figure 38 Top Face of Middle Girder

Figure 39 Bottom Face of Middle Girder

Figure 40 Top Face of Bottom Girder

Figure 41 Bottom Face of Bottom Girder

Figure 42 Bottom of Gate Between Ribs (Debris, Paint Failure, Moderate to Severe Corrosion)

Figure 43 Tie Beam

Figure 44 Upper Section of Downstream Trusses

Figure 45 Lower Section of Downstream Trusses

Figure 46 Typical Condition of Upper Ribs

Figure 47 Typical Condition of Middle Ribs

Figure 48 Typical Condition of Lower Ribs

Figure 49 Close up of Surface Corrosion Observed on some Top Rib Members

Figure 50 Downstream Elevation View of Gate

Figure 51 Top of Gate Chain Hoist Connection