csz_pgv_site_30ft_red (27)
| High : 61.8341 - Low : 45 |
csz_pgv_site_30ft_orange (26)
| High : 45 - Low : 23.5 |
csz_pgv_site_30ft_yellow (25)
| High : 23.5 - Low : 12.5348 |
csz_pgv_site_30ft_ltgreen (24)
| High : 12 - Low : 5.75 |
phf_pgv_site_30ft_dkred (34)
| High : 111.34 - Low : 88 |
phf_pgv_site_30ft_red (33)
|
| High : 88 - Low : 45 |
phf_pgv_site_30ft_orange (31)
|
| High : 45 - Low : 23.5 |
phf_pgv_site_30ft_yellow (30)
|
| High : 23.5 - Low : 12 |
phf_pgv_site_30ft_ltgreen (29)
|
| High : 12 - Low : 5.75 |
phf_pgv_site_30ft_dkgreen (28)
| High : 5.75 - Low : 3.30093 |
Cascadia Subduction Zone M 9.0 earthquake, Peak Ground Acceleration (35)
| < 0.05 |
| 0.05 - 0.10 |
| 0.10 - 0.15 |
| 0.15 - 0.20 |
| 0.20 - 0.25 |
| 0.25 - 0.30 |
| 0.30 - 0.35 |
| 0.35 - 0.40 |
| 0.40 - 0.45 |
Portland Hills Fault M 6.8 earthquake, Peak Ground Acceleration (36)
|
| < 0.05 |
|
| 0.05 - 0.10 |
|
| 0.10 - 0.15 |
|
| 0.15 - 0.20 |
|
| 0.20 - 0.25 |
|
| 0.25 - 0.30 |
|
| 0.30 - 0.35 |
|
| 0.35 - 0.40 |
|
| 0.40 - 0.45 |
| 0.45 - 0.50 |
| 0.50 - 0.60 |
| 0.60 - 0.70 |
| 0.70 - 0.75 |
Historic Landslide Points (7)
CERTAINTY (9)
| High (=>30) |
| Moderate (11-29) |
| Low (=<10) |
DEEP-SHALLOW (10)
| Deep |
AGE (11)
| Historic (<150yrs) |
| Pre-Historic (>150yrs) |
SCARP LINES (15)
HEAD SCARP-FLANKS (16)
HEAD SCARP-FLANKS (17)
Shallow Landslide Susceptibility, Multnomah County (DOGAMI) (18)
Deep Landslide Susceptibility, Multnomah County (DOGAMI) (19)
Potential Landslide Hazard Zones (DOGAMI) (40)
Regulatory Landslide Hazard Area (BDS) (20)
Steep Slopes (20% or more) (21)
MCDD Levee Review Zone (53)
MCDD Boundary (54)
Reduced Flood Risk due to Levee (56)
1996 Flood Area (39)
FEMA 100-year floodplain (SFHA) (3)
FEMA 500-year floodplain (4)
Floodway (FEMA) (57)
Portland Flood Response Stages (38)
| River Gauge levels below Phase 1 |
| Flood Extent - Phase 1 |
| Flood Extent - Phase 2 |
| Flood Extent - Phase 3 |
| Flood Extent - Phase 4 |
| Flood Extent - Phase 5 |
Wildfire Hazard Zones (23)
|
