Rockfall countermeasures to protect the roadway from rockfall
Ishikawa Prefecture Road Special Improvement Works General National Route 157 (in Onabara, Hakusan City)
* Embankment height (m): 3.0 *Approximate construction extension (m): 30
* Rockfall diameter (m): D = 0.5 *Converted fall height (m): H = 41.9
* Rockfall energy (kJ): E = 97