MLIT press release: revised draft guide on small-river flood inundation maps (sediment/driftwood)
土砂・流木の影響を考慮した浸水想定区域図の作成手法をとりまとめました ～「小規模河川の洪水浸水想定区域図作成の手引き」改定案 手交式の開催～
Published: 2026-09-28 · Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT) · Stage: Government Announcement · Area: Public Safety / Disaster Management · Impact (preliminary): Low · First detected by this dashboard: 2026-09-30
View the original Japanese source More Public Safety / Disaster Management updates Search all updates in the dashboard
AI summary
Generated by AI from the Japanese source metadata. It is an unofficial monitoring aid, not legal advice, and may contain errors. The area, stage, and impact labels are preliminary keyword-based triage labels. Confirm every point in the original Japanese source.
Summary
The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) issued a press release stating that it has compiled a method for preparing inundation-area maps that take the effects of sediment and driftwood into account. The title also refers to a handover ceremony for a revised draft of the guide to preparing flood inundation-area maps for small rivers. The item is a government announcement concerning a draft revision, not a finalized rule.
Business Impact
Entities involved in river management, flood hazard mapping, or related consulting and engineering work may find the revised draft relevant to how inundation maps are prepared. Any practical effect would depend on details in the official source, which were not provided here.
Recommended Action
Review the official MLIT press release and the revised draft guide in Japanese to confirm its scope, status, and any stated timelines.