[Taken from Internet (PinoyExchange.com):]
"Imelda Marcos was in charge of building the bridge. She consulted a manghuhula who said that the bridge would never be finished unless the blood of children [would be spilled on the foundation]. So Imelda ordered [street children to be kidnapped] and [their throats were] slit on the bridge's location. Their bodies were thrown into the river. A mermaid or diwata who resided in the river saw the plight of the children and was saddened by it. She cursed Imelda. So the First Lady grew scales on her legs and she smelled fishy. That was why she wore long skirts and bathed as often as possible."
- It was also said that instead just spread the blood on the bridge, the blood itself was mixed to cement by the construction workers.
- Much scary version is, the bodies of the children are dropped to the cement mixer.
The San Juanico Bridge, renamed from Marcus Bridge, was the longest bridge in the Philippines. According to some rumors, it has foundation allegedly been made stronger by the blood of numerous street children (some say babies). When it was under construction, there happened coincidentally a kidnapping in Samar-Leyte areas. Thus, they theorized that the kids were offered to a pagan or demonic ritual to guarantee the strength of the structure. Imelda Marcos, being in charge with the building, was said to be the master mind of the said events.
This is why, people say, the bridge is haunted by many lost spirits. Others say that the success of the bloody rituals done for San Juanico Bridge encouraged others to do the same for their bridges and buildings. Only one detail was constant: the use of street kids as sacrifice.