92 Ill. Adm. Code 510.30
Sufficient Justification
Section 510
Section 510.30 Sufficient
Justification
It should be considered
sufficient justification for protective fencing on existing bridges if police
or other qualified local agency sources provide a record of incidents. For new
structures, the District Engineer must depend on previous experience for similar
existing locations wherein he anticipates it will serve comparable volumes and
types of pedestrian traffic.