Four Sided Precast Concrete Box Culvert Defects: Leaking Joints
Leaking joint
CAUSES
Lack or or failure of waterproofing
Sections not properly pulled together when constructed
Mastic not installed in joints when constructed
RECOMMENDED REPAIRS
INITIAL COST
EXPECTED LIFE
Do nothing
Excavate and re-waterproof
$500/LF
20 years
Attempt to seal from underside using expanding polyethylene/urethane caulk or "Leak Stop" fast setting mortar
$10/LF of joint
10 years
EXAMPLE
