BPA transmission lineRegional context
Pearl-Sherwood No 1
About this record
BPA line geometry as published, with the operating voltage in kV as reconciled from the source field; no power flow or capacity.
2026-07-07
Show on the map ↗
Operating voltage
230kV
Source & method
BPA field VoltageMeas read as kilovolts: the source declares no unit, but every line whose name states a kV figure carries that figure in the field and values fall on standard classes (validation check lines.voltage_unit_is_kv)
2026-07-07 · reported · derived · valid · final
Unit established by reconciliation: line names that state a kV figure agree with the field for every such line, and values fall on standard transmission classes; the Pacific DC Intertie rows read 1000-1100 (pole-to-pole DC)
BPA Transmission Lines (Public View), layer 0 BPA_TransmissionLines; OBJECTID=821097; GlobalID=0531285a-4681-4f9d-8fba-dabcb559cdd9; XRefCd=PERL-SHWD-1; field=VoltageMeas
Publisher & attribution ↗ Cite this released fact ↗Operating voltage (raw source value, unit not declared)
230unit not declared
Source & method
BPA field VoltageMeas retained as published; the source declares no unit, so no kV assertion is made
2026-07-07 · reported · direct · valid · final
BPA Transmission Lines (Public View), layer 0 BPA_TransmissionLines; OBJECTID=821097; GlobalID=0531285a-4681-4f9d-8fba-dabcb559cdd9; XRefCd=PERL-SHWD-1; field=VoltageMeas
Publisher & attribution ↗ Cite this released fact ↗What BPA publishes about this line
Line layer only - Route
- BPA’s published geometry, 7.7 km long, retrieved 2026-09-29 04:56 UTC from the layer as BPA reloaded it 2026-09-26 16:01 UTC.The geometry as retrieved from BPA's layer on this date. BPA reloads the layer weekly and can change a line's geometry at any reload; the reload stamp dates the layer, not this line. Length: Planar length of the published geometry in CONUS Albers (EPSG:5070), within about 1% in the region; BPA publishes no length.
- Voltage
- 230 kVThe layer declares no unit; VoltageMeas is read as kV on the layer-wide reconciliation (validation lines.voltage_unit_is_kv) No BPA document is cited for this line’s voltage.
- Owner
- Bonneville Power Administration ↗ BPA publishes the line in its own layer; no BPA document read here states its ownership. No document read names an operator separately.
- Paths
- North of Pearl ↗Curated relation, reviewed 2026-09-18 against BPA Transmission Services A reviewed row of crosswalks/bpa_paths.csv names this line in the path. A path's transfer capability limits the whole cut, never this line.
Not published here
ConductorConductor type, size and bundling are not in BPA's public line layer; a planned reconductor names no conductor.
Held by BPAStructure design
BPA publishes structure points by line name in a separate layer with a symbol code it does not define; designs, heights and circuit arrangement are not published. The atlas does not acquire that layer.BPA source ↗RatingsThermal and operating ratings (MVA or amperes) are not in any public BPA layer. A path's transfer capability limits the whole cut and is never this line's rating.
Held by BPAAvailable capacity
BPA calculates available transfer capability per flowgate or path, not per line (ATC Implementation Document); a line has no available-capacity figure of its own.BPA source ↗Outages
BPA posts outage plans and its outage policy on its Outage Coordination site (ATC Implementation Document, section V); outages of this line are not collected here.BPA source ↗Flow
BPA publishes metered flow per path, not per line; a path's flow is never attributable to one of its lines.BPA source ↗In-service date and edit historyThe layer's CreationDate and EditDate are stamped on every feature at each weekly reload: they date the reload, not this line's construction or last change.
Held by BPA
A line beside a plant or project never establishes a connection, available capacity or transmission service.
Geographic & reporting context
Plants nearby Context, not a connection
Plants whose reported point lies within 3 km of this line; context, not a connection
Informational geometry, name and operating voltage (kV, reconciled). No connectivity, capacity, ownership beyond what BPA states, or flow is asserted.
- layer reloaded at
- 2026-09-26T16:01:28Z
- metadata publication date
- 2026-07-07
- note
- Geometry as retrieved; the reload stamp dates BPA's weekly reload of the whole layer, not an edit to this line. Independent of the tabular comparison year
- retrieved at
- 2026-09-29T04:56:57Z
BPA interties and flowgates (pipeline/config/crosswalks/bpa_paths.csv)
Path definitions from BPA's OPI Paths page, ATCID V88 and 2025 Transmission Plan; ratings from BPA's OPI TTC series and the WECC 2026 Path Rating Catalog
A path is a metered cut plane; member lines are those BPA names, so partial cuts (non-BPA lines) are noted per row. TTC is a directional operating limit on the review date, not a rating of any line.
BPA Transmission Lines (Public View), layer 0 BPA_TransmissionLines
Bonneville Power Administration, Geospatial Services
This product was made for informational purposes only and was created with the best available data at time of production. It does not represent any legal information or boundaries. BPA GIS disclaims responsibility or liability for any data discrepancies or errors. No BPA endorsement; no engineering or rights-of-way use. Operating voltage is retained raw only; the source declares no unit.
Release 20260929T050546Z-51ae0f7d3c78 · Record JSON