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Open-File Report O-14-09, Redigitized GIS Data Approximating the Oregon Senate Bill 379 (SB 379) Tsunami Regulatory Line, by Rachel L. Smith and Sean G. Pickner.

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This data release provides digital versions of Oregon’s tsunami regulatory line and supplemental georeferenced digital scans of the official regulatory paper maps. In 1995 the Oregon Department of Geology and Mineral Industries (DOGAMI) created the official tsunami regulatory maps for implementing Oregon Revised Statutes (ORS) 455.446 and 455.447. These statutes were enacted as a result of Oregon Senate Bill 379 resulting in the commonly used reference “SB 379 maps” and “SB 379 line.” The official regulatory line is shown on paper maps published by DOGAMI. These paper maps depict the line in red on a black and white U.S. Geological Survey topographic basemap. GIS users often need to show a non-regulatory version on maps or to use a polygon version for GIS analysis. DOGAMI has created an unofficial but accurate vector line and polygon version of the regulatory line, and this publication makes those data available. Extra care was taken by DOGAMI to note line artifacts or errors resulting from map edges where the tsunami regulatory line is not reflected. This publication also includes georeferenced digital images of the regulatory maps that were used to create the vector data. Details on the processing steps used to create these products are provided in this report.

Olmstead, D. L., 2003, Development in Oregon's tsunami inundation zone: information guide for developers and local government: Oregon Department of Geology and Mineral industries Open-File Report O-03-05, 17 p. Web:

Priest, G. R., 1995, Explanation of mapping methods and use of the tsunami hazard maps of the Oregon coast: Oregon Department of Geology and Mineral Industries Open-File Report O-95-67, 95 p. Web:

Priest, G. R., 2000, Digital reissue of tsunami hazard maps of coastal quadrangles originally mandated by Senate Bill 379 (1995): Oregon Department of geology and Mineral Industries Open-File Report O-00-05, CD-ROM. This publication contains Open-File Reports O-95-09 through O-95-38; O-95-43 through O-95-66, O-97-31, and O-97-32. From north to south along the Oregon coast, the original maps are as follows:

95-09-Warrenton 95-23-Nestucca Bay 95-37-Florence 95-53-Floras Lake
95-10-Astoria 95-24-Neskowin 95-38-Tahkenitch Creek 95-54-Langlois
95-11-Cathlamet Bay 95-25-Lincoln City 97-31-Winchester Bay 95-55-Cape Blanco
95-12-Knappa 95-26-Devils Lake 97-32-Reedsport 95-56-Sixes
95-13-Gearhart 95-27-Depoe Bay 95-43-Lakeside 95-57-Port Orford
95-14-Olney 95-28-Newport North 95-44-Empire 95-58-Ophir
95-15-Tillamook Head 95-29-Newport South 95-45-North Bend 95-59-Gold Beach
95-16-Arch Cape 95-30-Toledo South 95-46-Cape Arago 95-60-Signal Buttes
95-17-Nehalem 95-31-Waldport 95-47-Charleston 95-61-Cape Sebastian
95-18-Garibaldi 95-32-Tidewater 95-48-Coos Bay 95-62-Sundown Mountain
95-19-Kilchis River 95-33-Yachats 95-49-Bullards 95-63-Mack Point
95-20-Netarts 95-34-Heceta Head 95-50-Riverton 95-64-Carpenterville
95-21-Tillamook 95-35-Mercer Lake 95-51-Bandon 95-65-Brookings
95-22-Sand Lake 95-36-Goose Pasture 95-52-Bill Peak 95-66-Mt. Emily