Terra Nova raises $7M to lift flood-prone cities using wood chip injection robots — San Rafael is first target
Nov 11, 2025 with Laurence Allen
Key Points
- Terra Nova raises $7M seed round led by Congruent Ventures to deploy wood chip injection robots that physically lift subsiding coastal land, with an 80-acre Corte Madera site targeting $100M in mixed-use development as the lead commercial opportunity.
- California's wildfire clearing generates enough wood waste feedstock to sustain aggressive deployment, with Terra Nova sourcing 1,000 truckloads daily in the Bay Area alone at near-zero material cost.
- The company is fielding government interest from Indonesia and Cambodia for massive subsidence projects like Jakarta's relocation, positioning the technology as a scalable infrastructure solution across geographies and political markets.
Summary
Terra Nova has raised $7 million and is actively deploying its wood chip injection technology, with a crew on-site at an undisclosed testing location near Sacramento as of the interview date. The company has been operational for approximately one year and is now actively seeking commercial contracts.
The core thesis is straightforward: organic soils in diked or levied coastal areas subside over time, leaving land below sea level and increasingly vulnerable to flooding. Terra Nova injects compressed wood chips underground using auger drill bits and industrial pumping equipment, physically lifting the ground. The founder claims the injected material compacts into a dense, particleboard-like substrate that is more structurally stable than native earth and measurable to two-millimeter precision.
San Rafael is the primary municipal target, facing a substantial infrastructure bill tied to subsidence and flood risk. A specific deal case illustrates the commercial opportunity: an 80-acre parcel in Corte Madera, near a Target retail location, has subsided two meters. The landowner wants to restore tidal wetlands on part of the site and develop approximately $100 million worth of homes on the upland section. Both goals require the same intervention, lifting the land, which Terra Nova says positions it as the single solution provider for mixed-use coastal redevelopment.
Ideal early customers are wetland restoration projects and greenfield residential developments, where existing infrastructure is minimal and risk tolerance is higher. The company also sees roadway projects as near-term targets. On materials sourcing, California's wildfire clearing operations generate large volumes of wood waste with no clear disposal outlet, which Terra Nova treats as essentially free feedstock. The founder says sourcing 1,000 semi-truckloads per day in the Bay Area alone is logistically straightforward.
On scale, raising one square mile by five feet would require roughly 64,000 truckloads of wood chips. At 1,000 truckloads per day, that implies a two-month timeline under aggressive logistics or roughly two years at a slower pace.
The geographic opportunity extends well beyond California. Miami and South Florida face comparable subsidence and flooding dynamics. The founder notes direct outreach from government officials in Indonesia and Cambodia, with Jakarta's relocation cited as a potential use case. Terra Nova is positioning the technology as a bipartisan infrastructure solution, explicitly noting relevance in red-state markets like Florida.
One unannounced claim under active testing is seismic resilience. The founder says early results suggest the injected substrate performs meaningfully better in earthquake conditions but is not yet making public claims pending further data.