Beaver Dam Hydrology & Ghost Gear Rescue Simulator

Direct Action: Click orange ghost nets to slice or select Beaver Dam tool to drop timber

Biodiversity Index

28%

Severe Net Impact

Wetland Retention

2.1 acres

Fast Runoff Channel

Mean Velocity

4.8 ft/s

High Channel Erosion

Sediment Capture

45 tons/yr

Low Deposition

Hydrology Parameters 500m River Reach

River Inflow (CFS) 120 CFS

Channel Gradient / Slope 1.8 %

Riparian Vegetation 40 %

Ecosystem Health Matrix

Overall Reach Restoration 28 / 100

Synthetic ghost netting constricts passage. Lack of beaver structures causes rapid runoff and habitat fragmentation.

Interactive Mechanics:

Cut Ghost Nets: Click on amber net structures in the river to remove gear and unblock migratory fish.
Build Beaver Dams: Switch to the Dam tool and click the water channel to place permeable wooden log dams.
Watch Floodplain Hydrology: Beaver dams impound water, slowing flow, elevating headwater, and creating sprawling wetland pools.

Hydrological Parameter	Baseline	Current Simulated	Target
Ghost Nets Entangling Stream	3 Active	0 Remaining	0 Active
Beaver Dam Structures	0 Built	2 Installed	2-3 Built
Wetland Retention Area	2.1 acres	14.5 acres	> 12.0 acres
Mean Stream Velocity	4.8 ft/s	1.4 ft/s	1.0 - 2.0 ft/s
Sediment Retention Capacity	45 tons/yr	310 tons/yr	> 250 tons/yr

Ecosystem Health Report Card