HydroBASINS lev08 watershed · #7080040360
Bassin de Delaware River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 8 administrative regions : Cecil, Chester, Delaware, Gloucester, Lancaster +3
Sub-basin area
2 589,7km²
Upstream area
28 584,3km²
Discharge
547,31m³/s
Mean elev.
87m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Delaware River826 km²
- Bassin de Schuylkill River738 km²
8 dept-equivalent regions (GADM L2)
- 1121.2 km²43.2% of basin
- 498.5 km²19.2% of basin
- 478.7 km²18.5% of basin
- Delaware368.8 km²14.2% of basin
- 93.6 km²3.6% of basin
- 18.8 km²0.7% of basin
- 6.5 km²0.2% of basin
- Lancaster6.3 km²0.2% of basin
30 intersecting protected areas
Brandywine Conservancy
IUCN Not AssignedEasement
123.39 km² overlap
White Clay Creek
IUCN VState Park
17.59 km² overlap
Ridley Creek
IUCN IIIState Park
10.58 km² overlap
Marsh Creek
IUCN IIIState Park
7.10 km² overlap
ChesLen
IUCN VPreserve
5.16 km² overlap
National Wildlife Refuge
4.08 km² overlap
Laurels
IUCN VPreserve
3.11 km² overlap
Private Conservation
2.41 km² overlap
Stroud
IUCN VPreserve
2.36 km² overlap
21 more protected areassorted by overlap area
Sadsbury Woods
IUCN VPreserve
2.03 km² overlap
Game Branch
IUCN VPreserve
1.59 km² overlap
Private Conservation
1.31 km² overlap
O46Bc-Old Hilton Road
IUCN VPrivate Conservation
1.29 km² overlap
Preserve
1.01 km² overlap
Private Conservation
0.99 km² overlap
Miller Farm
IUCN VPrivate Conservation
0.91 km² overlap
Harrisonville Lake
IUCN VWildlife Management Area
0.90 km² overlap
Glassboro
IUCN VWildlife Management Area
0.89 km² overlap
Private Conservation
0.88 km² overlap
Brandywine Conservancy
IUCN Not AssignedEasement
0.83 km² overlap
Raccoon Creek
IUCN VWildlife Management Area
0.74 km² overlap
For Woldlife Observation
IUCN Not AssignedOther
0.66 km² overlap
Brandywine Conservancy
IUCN Not AssignedEasement
0.63 km² overlap
Easement
IUCN Not AssignedConservation Easement
0.63 km² overlap
Spackman - Brandywine
IUCN Not AssignedBattlefield
0.61 km² overlap
Conservation Area
IUCN VConservation Area
0.61 km² overlap
Flint Woods
IUCN IIINature Preserve
0.55 km² overlap
Monds Island
IUCN VWildlife Refuge
0.51 km² overlap
Willisbrook
IUCN VPreserve
0.50 km² overlap
Brandywine Conservancy
IUCN Not AssignedEasement
0.50 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 490 distinct species · 6 295 980 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Delaware River : 23 espèces reliées par 75 interactions GloBI sur 3 types (connectance 13.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,7°C
Annual rain
1 125mm
Moisture idx (CMI)
0,07
Runoff
613mm/an
PET
1 047mm
AET
834mm
Mean slope
2,1°
Water table
135cm
Forest
59%
Crops
16%
Urban
43%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)