119-S-1626 Investigative Journalist Impact Analysis

Summary

The bill reauthorizes and updates the National Landslide Preparedness Act through 2030, strengthening USGS-led landslide programs, defining atmospheric rivers/extreme precipitation for cross-agency use, and raising USGS-directed funding to $35M per year with at least $10M for early-warning systems. It aligns mapping/data programs (3DEP and 3D Hydrography) and formally adds NASA to interagency coordination. Based on historical impacts and documented returns from elevation/hydrography investments, expected net effects are risk reduction and improved planning at relatively low federal cost, contingent on steady appropriations and effective warning/partnership design. [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…[2]Congress.gov — S.1626 - 119th Congress: Bill overview and actions[4]U.S. Geological Survey — 3DEP By The Numbers – nearly 5:1 return on investment[5]U.S. Geological Survey — The 3D National Topography Model Call for Action—Part…

Sources: USGS program summaries; USGS 3DEP benefits analysis; S.1626 text; Scripps/CW3E research on atmospheric river damages. [3]U.S. Geological Survey — What We Do – USGS Landslide Hazards Program[4]U.S. Geological Survey — 3DEP By The Numbers – nearly 5:1 return on investment[1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…[7]Scripps Institution of Oceanography (UC San Diego) — Climate Change Projected t…

Economic Effects

Direct program costs are modest relative to disaster losses; benefits hinge on improved hazard intelligence, targeted grants, and data-driven infrastructure and land-use decisions.

• Program cost and status: The bill increases USGS landslide-program funding use to $35M annually (with ≥$10M for early-warning hardware/O&M) and extends authorizations through 2030; the measure was reported with an amendment and placed on the Senate calendar on November 3, 2025 (Cal. No. 249). [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…[8]GovInfo (U.S. Government Publishing Office) — Senate Calendar (General Orders)…
• Loss baseline: USGS estimates landslides cause roughly $1–$2B in U.S. damages annually—costs that are diffuse and often underreported—plus recurring transport disruptions. [3]U.S. Geological Survey — What We Do – USGS Landslide Hazards Program
• Data ROI: USGS’s 3D Elevation Program (3DEP) shows a nearly 5:1 national return via avoided losses and efficiency gains; the companion 3D Hydrography Program (3DHP) is projected to yield >$1B/yr in benefits when fully implemented. [4]U.S. Geological Survey — 3DEP By The Numbers – nearly 5:1 return on investment[5]U.S. Geological Survey — The 3D National Topography Model Call for Action—Part…
• Market stimulus: 3DEP/3DHP acquisitions rely on competitive contracts with private mapping firms and multi-jurisdictional cost-share partnerships, supporting geospatial and surveying sectors. [9]U.S. Geological Survey — The 3D Elevation Program—Landslide recognition, hazard…
• Grant leverage and state capacity: USGS landslide grants to states (e.g., FY2025 awards) indicate relatively small federal dollars can seed mapping, monitoring, and planning outputs with local co-funding. [10]Web search · turn 11 #5
• Insurance gap: Because standard homeowners’ policies often exclude earth movement, avoided losses translate directly to household balance sheets and local tax bases. [11]U.S. Geological Survey — What are landslides & how can they affect me? (insuran…
• AR-related risk externality: Atmospheric rivers drive a large share of Western flood damages (>$1B/yr historically) and are projected to intensify, increasing expected losses without improved forecasting/mapping. [7]Scripps Institution of Oceanography (UC San Diego) — Climate Change Projected t…
• Appropriations risk: CRS notes prior NLPA authorizations outpaced actual appropriations (e.g., ~$14M to USGS LHP in FY2024), so realized benefits depend on sustained funding. [12]Congressional Research Service via Congress.gov — CRS: National Landslide Prepa…

Social Effects

Impacts concentrate in mountainous, post-wildfire, coastal, and permafrost regions; distributional provisions target Tribes and Native Hawaiian organizations.

• Life-safety: U.S. landslides kill roughly 25–50 people annually; catastrophic events (e.g., Oso, WA) show rapid-onset hazards that overwhelm unprepared communities. [13]Web search · turn 5 #0[14]U.S. Geological Survey — Five Years Later – The Oso (SR 530) Landslide in Washi…
• Targeted inclusion: S.1626 explicitly engages Indian tribes, Tribal organizations, and Native Hawaiian organizations across grants, emergency coordination, and debris-flow warnings—addressing prior participation gaps. [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…
• Local capacity dependence: FEMA’s Hazard Mitigation Grant Program requires approved mitigation plans, so benefits accrue fastest where planning staff and technical capability already exist; underserved jurisdictions may need technical assistance to access funds. [15]FEMA — FEMA Hazard Mitigation Grant Program (HMGP) overview and requirements
• Post-wildfire communities: Burn scars face elevated debris-flow risk for years, with short lead times; improved thresholds, sensors, and messaging can reduce casualties if evacuation is feasible. [16]NOAA National Weather Service — Post Fire Burn Scar – Debris Flow & Flash Flood…
• Public understanding: Clear definitions for atmospheric rivers/extreme precipitation and integrated databases can improve risk communication to residents and infrastructure operators. [17]Web search · turn 0 #4[1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…

Environmental Effects

Better mapping and early warning can reduce sediment pulses and infrastructure failures that harm waterways and habitats; program activities have limited direct ecological footprint.

• Sediment and habitat: Debris flows introduce large, rapid sediment loads, rework channels, and can degrade fish habitat; reducing slope failures and routing people/infrastructure out of hazard zones mitigates these effects. [18]Web search · turn 8 #5[19]Web search · turn 8 #0
• Water-quality co-benefits: Avoiding landslide-induced line breaks and road washouts limits contaminant releases; 3D elevation/hydrography integration improves stormwater and watershed modeling for mitigation design. [11]U.S. Geological Survey — What are landslides & how can they affect me? (insuran…[20]U.S. Geological Survey — 3D Hydrography Program (program overview)
• Data programs: 3DEP/3DHP produce public, standardized datasets that support ecological restoration, culvert sizing, and floodplain reconnection decisions with minimal additional environmental disturbance. [9]U.S. Geological Survey — The 3D Elevation Program—Landslide recognition, hazard…[20]U.S. Geological Survey — 3D Hydrography Program (program overview)

Temporal Analysis

Short-term outcomes reflect administrative set-up and targeted deployments; long-run outcomes depend on steady funding and data adoption across agencies and communities.

1. Near term (1–2 years): Regional partnerships (e.g., Alaska) and minimum $10M for early-warning systems enable installation/repair of sensors and deployment of debris‑flow alerts in high‑risk corridors; initial gains are improved situational awareness and incident response. [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…
2. Medium term (3–5 years): National strategy refresh incorporating atmospheric rivers/extreme precipitation, plus expanded landslide database coverage of data‑poor areas, should improve siting, land‑use constraints, and emergency routing. [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…
3. Long term (5–10+ years): Full integration of 3DEP with 3DHP enhances hydrologic modeling and risk maps; as ARs intensify in a warming climate, these datasets underpin adaptive reservoir operations, corridor hardening, and community relocation where necessary. [20]U.S. Geological Survey — 3D Hydrography Program (program overview)[21]NOAA Climate.gov — Atmospheric Rivers: What are they and how does NOAA study th…

Unintended Consequences and Risks

Risks concentrate in governance and warning performance rather than in the underlying science.

• Funding/appropriations gap: If appropriations lag authorizations, program scope (e.g., early‑warning maintenance, grants to states/Tribes) may underdeliver, weakening risk‑reduction claims. [12]Congressional Research Service via Congress.gov — CRS: National Landslide Prepa…
• Operational limits: Some catastrophic slides unfold in under a minute (e.g., Oso), constraining the practical value of real‑time warnings; emphasis on mapping/land‑use controls remains critical. [14]U.S. Geological Survey — Five Years Later – The Oso (SR 530) Landslide in Washi…
• Coordination complexity: Adding NASA to the interagency body increases technical capacity but requires disciplined governance to avoid duplication across USGS/NOAA/NASA data streams. [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…
• Equity and access: Jurisdictions without planning staff may struggle to absorb and act on new data; targeted technical assistance is necessary to convert data into protective action. [15]FEMA — FEMA Hazard Mitigation Grant Program (HMGP) overview and requirements

Assessment

Favorable. The expected benefits—lower mortality and avoided infrastructure/environmental losses enabled by modern elevation/hydrography data, focused grants, and explicit treatment of atmospheric rivers—outweigh the relatively small federal costs. The main execution risks are (1) appropriation follow‑through, (2) interagency/State/Tribal coordination and capacity, and (3) managing warning accuracy to maintain public trust. If those are addressed, the measure should deliver positive net impacts across economic, social, and environmental dimensions. [4]U.S. Geological Survey — 3DEP By The Numbers – nearly 5:1 return on investment[5]U.S. Geological Survey — The 3D National Topography Model Call for Action—Part…[12]Congressional Research Service via Congress.gov — CRS: National Landslide Prepa…[6]Sensors (MDPI) — Systems and Sensors for Debris‑flow Monitoring and Warning

Sourcing (selected)

Key references used above; bill status verified as of November 4, 2025.

• S.1626 text, actions, and status (Congress.gov); Senate Calendar entry (GovInfo). [1]Congress.gov — Text - S.1626 - 119th Congress (2025-2026): National Landslide P…[2]Congress.gov — S.1626 - 119th Congress: Bill overview and actions[8]GovInfo (U.S. Government Publishing Office) — Senate Calendar (General Orders)…
• USGS program data on losses/fatalities, Oso 2014 event analysis. [3]U.S. Geological Survey — What We Do – USGS Landslide Hazards Program[13]Web search · turn 5 #0[14]U.S. Geological Survey — Five Years Later – The Oso (SR 530) Landslide in Washi…
• 3DEP/3DHP benefits and implementation details (USGS; CRS). [4]U.S. Geological Survey — 3DEP By The Numbers – nearly 5:1 return on investment[5]U.S. Geological Survey — The 3D National Topography Model Call for Action—Part…[20]U.S. Geological Survey — 3D Hydrography Program (program overview)[22]Web search · turn 9 #5
• Atmospheric rivers: NOAA overviews; Scripps/CW3E damages projections. [21]NOAA Climate.gov — Atmospheric Rivers: What are they and how does NOAA study th…[7]Scripps Institution of Oceanography (UC San Diego) — Climate Change Projected t…
• FEMA HMGP plan prerequisites and BCA expectations; NWS burn‑scar debris‑flow risk. [15]FEMA — FEMA Hazard Mitigation Grant Program (HMGP) overview and requirements[16]NOAA National Weather Service — Post Fire Burn Scar – Debris Flow & Flash Flood…
• Warning false‑alarm literature (debris‑flow systems). [6]Sensors (MDPI) — Systems and Sensors for Debris‑flow Monitoring and Warning