What This Source Covers
Watershed polygons with descriptive and count fields representing larger drainage catchments.
This layer provides the broadest drainage geography in the active stack and is useful for watershed-scale orientation.
Why Someone Would Open This Page
This source appears on 219 of the 219 mapped place pages in the Allegheny County section, including 129 borough and township pages and 90 Pittsburgh neighborhood pages. That gives a quick sense of how broadly the layer is used across the county.
The example below is here to make the source concrete. Instead of talking about the layer in the abstract, the page shows what it actually looks like on the map.
Example Map
This page uses 029 – Watersheds in Indiana Twp. as the example area. Dense sources use a full selected place; lighter sources use the full sample area.
Live Example Map
Watersheds
Indiana Twp. / Environment / polygon sample
Full municipality watershed sample.
Quick Facts
| Fact | Current value |
|---|---|
| Rows in the source | 138 |
| Main data fields | 11 |
| Total fields | 13 |
| Source system | PASDA AlleghenyCounty MapServer layer 29 |
| Map geometry | PASDA layer 29 |
| Mapped place pages using this source | 219 / 219 (100.0%) |
| Example area used here | Indiana Twp. |
| Features drawn in this example | 26 |
Where You Will See It
| Place type | Coverage |
|---|---|
| All mapped place pages in the county section | 219 |
| Pages using this source | 219 (100.0%) |
| Borough and township pages | 129 / 129 |
| Pittsburgh neighborhood pages | 90 / 90 |
| Pages where the source is hidden | 0 |
For Technical Readers
- Source table:
[WPRDC PASDA].[029 - Watersheds] - Refresh procedure:
[WPRDC PASDA].[029 - Watersheds update] - Documentation map table:
[Allegheny].[WPRDC PASDA MAPS].[Documentation Map - 029 - Watersheds] - Metadata timestamp: 2026-03-16T17:09:07.925Z
Field List
The table below lists the current columns in [WPRDC PASDA].[029 - Watersheds].
| # | Field | SQL type | Nullable | Role |
|---|---|---|---|---|
| 1 | OBJECTID |
nvarchar(4000) |
Yes | Attribute |
| 2 | SDE_ADD1_AlleghenyCounty_Watersheds2000_AREA |
nvarchar(4000) |
Yes | Attribute |
| 3 | PERIMETER |
nvarchar(4000) |
Yes | Attribute |
| 4 | POLY_ |
nvarchar(4000) |
Yes | Attribute |
| 5 | POLY_ID |
nvarchar(4000) |
Yes | Attribute |
| 6 | RINGS_OK |
nvarchar(4000) |
Yes | Attribute |
| 7 | RINGS_NOK |
nvarchar(4000) |
Yes | Attribute |
| 8 | DESCR |
nvarchar(4000) |
Yes | Attribute |
| 9 | COUNT_ |
nvarchar(4000) |
Yes | Attribute |
| 10 | SHAPE_Length |
nvarchar(4000) |
Yes | Attribute |
| 11 | SHAPE_Area |
nvarchar(4000) |
Yes | Attribute |
| 12 | geometry_type |
nvarchar(200) |
Yes | Geometry storage |
| 13 | geometry_json |
nvarchar(max) |
Yes | Geometry storage |