Washington Ave. Bridge Case Study #1 Approaches to Historic Bridge Preservation Case Study #1 Washington Ave. Bridge Charles E. Walker, P.E. Texas DOT, Bridge Division
450’ span (18 panels @ 25’) Pennsylvania Petit Truss
PHOTO: ESPERANZA WHITE JAY-REESE CONTRACTORS, INC.
C/L Span
C/L Span
TARGET RATING: HS 20, Operating C/L Span U8 U6 U4 M7 M5 M3 SUB-TIES ~ HS 3 ALL OTHERS > HS 20
REPLACE ALL SUB-TIE EYEBARS
M3 Rt (98) M3 Rt
Closer view of cracking in eybar…
At Upper Pin
Discovered Conditions
All parties concurred with “no adverse effect” finding Section 106: All parties concurred with “no adverse effect” finding July 2010
2011 City of Waco - Historic Landmark Commission Award Lessons Learned: Involve SHPO early in developing project concept Stay involved during construction phase Expect to solve new problems during construction 2011 City of Waco - Historic Landmark Commission Award