MOOD'S BRIDGE

STRUCTURAL REPAIRS

The existing siding, runners, floor planks, and stringers were removed. The siding was replaced removing as much of the material as possible that was removed from the bridge at the beginning of the restoration.

The roof knee braces were disconnected from the top chords. Then cables between the chords were adjusted until trusses were plumb and the 5" bow was removed. Knee braces were reconnected using lag bolts; shims were used where necessary.  

 
The top and bottom chords of the trusses were repaired. Jacking bents (transverse frame of bridge designed to support either vertical or horizontal loads) and timber blocking bents under the chords of the trusses were installed.   The jacks were then raised to reach the desired height. Block trusses at these elevations were adjusted shims until timber blocking bents were tight against the chords.   
     
The bridge was jacked up using the support seen at the bottom of the bridge. Blocking was added as required.   Here is a view of the bridge from below with the jacks in place.
   
Here is one of many cables between the chords used to remove the 5" bow (or sideways leaning of the bridge) in the bridge.   As the diagonal cables were adjusted that ran between the upper and lower chords, the 5" bow was eliminated.
     
Joints were bolted back together, and shims were added where necessary.   A portion of the existing abutment was replaced with reinforced concrete and faced with rubble masonry. The abutments are 99' 7" apart.
 BRIDGE CONSTRUCTION MOOD'S BRIDGE
 STRUCTURAL REPAIRS - Mood's Bridge  ROOF REPAIRS - Mood's Bridge  WALL REPAIRS - Mood's Bridge  DECK REPAIRS - Mood's Bridge