{"name": "Boysen Unit of the Pick-Sloan Missouri Basin Program", "slug": "boysen-unit-of-the-pick-sloan-missouri-basin-program-0b30229e1129e94e", "as_of": "2026-10-03T23:28:47.060522+00:00", "depth": "basic", "facts": {"name": {"value": "Boysen Unit of the Pick-Sloan Missouri Basin Program", "rights": "facts_only", "source": {"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}, "locator": "/html/body/div/div[4]/div/div[2]/div[3]/div[1]/h1", "claim_id": "fe416739-b292-4562-81cc-17a0c4553ba3", "modality": "reported", "confidence": 0.9, "valid_from": null, "attribution": "USBR Boysen agency project narrative", "evidence_id": "3a3846bb-5216-47a1-8dae-6efdcfc49fd6", "valid_until": null, "assertion_id": "99bad7e1-0bf1-48db-b01d-018511ff458b", "temporal_expression": "", "extraction_confidence": 0.9}, "scope": {"value": "The unit consists of Boysen Dam, Boysen Reservoir, and Boysen Powerplant. The dam is described as a 220-foot zoned earthfill structure with a radial-gate-controlled overflow spillway and outlet works. The reservoir has 802,000 acre-feet of total controlled storage capacity at elevation 4,725 feet. The powerplant has 15,000 kW of installed capacity in two 7,500-kW units. The separate 1908 concrete dam described in the history was about 1.5 miles downstream of the present dam site and was removed in 1948; it is not part of this scope.", "rights": "facts_only", "source": {"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}, "locator": "/html/body/div/div[4]/div/div[2]/div[3]/div[4]/p[2]", "claim_id": "a664945c-fe9e-4b6b-8810-260c2fdb44d3", "modality": "reported", "confidence": 0.9, "valid_from": null, "attribution": "USBR Boysen agency project narrative", "evidence_id": "f0df2dd3-2457-4f99-b59f-958e785868e9", "valid_until": null, "assertion_id": "9b85b637-d122-492e-9fd2-f1c47862fa72", "temporal_expression": "", "extraction_confidence": 0.9}, "activity": {"value": "Construction of Boysen Dam and Powerplant, including relocation of the CB&Q Railroad, began September 19, 1947, and was completed December 11, 1952. The construction account also describes relocation of 13.5 miles of track, a 1.25-mile tunnel, seven bridges, and two sidings.", "rights": "facts_only", "source": {"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}, "locator": "/html/body/div/div[4]/div/div[2]/div[3]/div[6]/p[2]", "claim_id": "dd246aab-85b3-4b2b-8a06-728de5ec21fe", "modality": "actual", "confidence": 0.9, "valid_from": null, "attribution": "USBR Boysen agency project narrative", "evidence_id": "38abeb96-7faf-4d50-9b94-9877d1b31b3f", "valid_until": null, "assertion_id": "9f8821f3-e290-4fe3-8b17-59fe22fe691c", "temporal_expression": "", "extraction_confidence": 0.9}, "location": {"value": "Wyoming, on the Wind River. The page places the unit about 20 miles south of Thermopolis; its recreation description places the reservoir about 20 miles upstream from Thermopolis.", "rights": "facts_only", "source": {"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}, "locator": "/html/body/div/div[4]/div/div[2]/div[3]/div[1]/div[2]/p[1]", "claim_id": "73d0c6ad-eee5-4b02-be87-cb3ba7e3b207", "modality": "reported", "confidence": 0.9, "valid_from": null, "attribution": "USBR Boysen agency project narrative", "evidence_id": "0a9e8bfb-96d7-458f-b867-c92a8bfbd4c5", "valid_until": null, "assertion_id": "65b6d437-27e3-4f9f-bc66-d8f41c96cb31", "temporal_expression": "", "extraction_confidence": 0.9}}, "origin": "snapshot", "revision": 1, "timeline": [], "is_sample": false, "project_id": "5a343b88-732e-440b-ad6d-48270c67da3b", "publication": {"local_only": false, "reviewed_at": "2026-10-16T16:31:54.867352+00:00", "indexability": "noindex", "buying_window": "unknown", "policy_version": "accepted-destination-v1", "template_version": "dossier-v1"}, "public_summary": "The Boysen Unit of the Pick-Sloan Missouri Basin Program comprises Boysen Dam, Boysen Reservoir, and Boysen Powerplant on the Wind River in Wyoming. The source places the unit about 20 miles south of Thermopolis and separately describes the reservoir as about 20 miles upstream from Thermopolis. The dam is described as a 220-foot zoned earthfill structure, the reservoir as having 802,000 acre-feet of total controlled storage, and the powerplant as having 15,000 kW of installed capacity in two units. The historical construction account gives a start date of September 19, 1947, and completion date of December 11, 1952.", "schema_version": "1.0", "public_unknowns": ["The supplied page text has no publication date, so current operating condition is not established.", "The page does not establish current construction, rehabilitation, procurement, financing, or contract status.", "The linked Boysen Unit PSMBP document and page media, including images and captions, are not covered by the supplied evidence."], "evidence_observed_at": "2026-10-03T22:56:48.799133+00:00", "knowledge_reviewed_at": "2026-10-16T16:31:54.867352+00:00", "decisive_evidence_observed_at": "2026-10-03T22:56:48.799133+00:00", "export_metadata": {"publisher": "CapexCue", "project_title": "Boysen Unit of the Pick-Sloan Missouri Basin Program", "original_project_title": "Boysen Unit of the Pick-Sloan Missouri Basin Program", "canonical_url": "https://capexcue.com/projects/boysen-unit-of-the-pick-sloan-missouri-basin-program-0b30229e1129e94e/", "release": {"id": "9afa5ab1-a595-485b-8c82-90d9b0a3078f", "number": 1, "published_at": "2026-10-16T16:31:55.210423+00:00"}, "release_reference": "release 1 (9afa5ab1-a595-485b-8c82-90d9b0a3078f)", "current_dossier_url": "https://capexcue.com/projects/boysen-unit-of-the-pick-sloan-missouri-basin-program-0b30229e1129e94e/", "citation": "CapexCue \u2014 Boysen Unit of the Pick-Sloan Missouri Basin Program \u2014 dossier released 2026-10-16T16:31:55.210423+00:00, release 1 (9afa5ab1-a595-485b-8c82-90d9b0a3078f) \u2014 https://capexcue.com/projects/boysen-unit-of-the-pick-sloan-missouri-basin-program-0b30229e1129e94e/.", "edition_note": "This file records the release identified above; visit the current dossier for later updates.", "presentation": {"version": "dossier-presentation-v7", "project_milestones": [], "project_category": {"basis": "codex_retained_dossier_curation", "value": "energy", "support": {"end": 538, "start": 0, "sources": [{"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}], "modality": "reported", "predicate": "scope", "raw_value": "The unit consists of Boysen Dam, Boysen Reservoir, and Boysen Powerplant. The dam is described as a 220-foot zoned earthfill structure with a radial-gate-controlled overflow spillway and outlet works. The reservoir has 802,000 acre-feet of total controlled storage capacity at elevation 4,725 feet. The powerplant has 15,000 kW of installed capacity in two 7,500-kW units. The separate 1908 concrete dam described in the history was about 1.5 miles downstream of the present dam site and was removed in 1948; it is not part of this scope.", "statement": "The unit consists of Boysen Dam, Boysen Reservoir, and Boysen Powerplant. The dam is described as a 220-foot zoned earthfill structure with a radial-gate-controlled overflow spillway and outlet works. The reservoir has 802,000 acre-feet of total controlled storage capacity at elevation 4,725 feet. The powerplant has 15,000 kW of installed capacity in two 7,500-kW units. The separate 1908 concrete dam described in the history was about 1.5 miles downstream of the present dam site and was removed in 1948; it is not part of this scope.", "qualifications": {"attribution": "USBR Boysen agency project narrative"}}, "label": "Energy", "icon": "energy"}, "project_metadata": {"version": "released-metadata-v7", "category": {"basis": "codex_retained_dossier_curation", "value": "energy", "support": {"end": 538, "start": 0, "sources": [{"url": "https://www.usbr.gov/projects/index.php?id=500", "name": "US Bureau of Reclamation screened government project narrative", "origin": "live", "checksum": "acbc5bd4c0656bfff0f9c7ed3a91f6b6dc308f875aaf7862079221e3cf70cdc5", "observed_at": "2026-10-03T22:56:48.799133+00:00", "revision_id": "43ecf576-d8ce-492f-ab5e-8b58fc128da2", "published_at": null}], "modality": "reported", "predicate": "scope", "raw_value": "The unit consists of Boysen Dam, Boysen Reservoir, and Boysen Powerplant. The dam is described as a 220-foot zoned earthfill structure with a radial-gate-controlled overflow spillway and outlet works. The reservoir has 802,000 acre-feet of total controlled storage capacity at elevation 4,725 feet. The powerplant has 15,000 kW of installed capacity in two 7,500-kW units. The separate 1908 concrete dam described in the history was about 1.5 miles downstream of the present dam site and was removed in 1948; it is not part of this scope.", "statement": "The unit consists of Boysen Dam, Boysen Reservoir, and Boysen Powerplant. The dam is described as a 220-foot zoned earthfill structure with a radial-gate-controlled overflow spillway and outlet works. The reservoir has 802,000 acre-feet of total controlled storage capacity at elevation 4,725 feet. The powerplant has 15,000 kW of installed capacity in two 7,500-kW units. The separate 1908 concrete dam described in the history was about 1.5 miles downstream of the present dam site and was removed in 1948; it is not part of this scope.", "qualifications": {"attribution": "USBR Boysen agency project narrative"}}}, "input_hash": "32b6f65f9c475a52da12892ed259b33d1cbf8fb73cf5377fb9b3ea3afaa45c93", "release_id": "9afa5ab1-a595-485b-8c82-90d9b0a3078f", "type_codes": ["hydropower"], "field_states": {"type": {"state": "accepted", "reason": "Wyoming dam and operating-project hydroelectric powerplant; the removed 1908 dam remains excluded."}, "region": {"state": "accepted", "reason": "derived_from_accepted_countries"}, "country": {"state": "accepted", "reason": "Wyoming dam and operating-project hydroelectric powerplant; the removed 1908 dam remains excluded."}, "category": {"state": "accepted", "reason": "Wyoming dam and operating-project hydroelectric powerplant; the removed 1908 dam remains excluded."}}, "region_codes": ["north_america"], "release_hash": "74e4525a4262e0b23803dfa5894279b5fc3b41d1b7976cff83875e2be02a1c78", "assessment_id": "2cfc6a46-6c36-4c6b-b0fd-976109151aa2", "country_codes": ["US"], "assessment_hash": "22c7733ddc1709df9f11c080810d4fe8676f96c5b1f86f1599713c8df2208df9", "country_label": "United States", "region_label": "North America", "type_labels": ["Hydropower"]}, "date_note": "Project event times are distinct from source publication, observation and dossier release dates. An elapsed plan does not establish completion."}}}