Seaside, OR — Boardwalk, Arcade, and a Tsunami Zone the Town Faced Head-On

What Actually Makes Seaside Different

Seaside is not a quiet, upscale enclave -- it is Oregon's original, and still busiest, family beach resort, and its identity is built around genuinely public, historic infrastructure rather than exclusivity. The Prom, a 1.5-mile paved oceanfront promenade running from 12th Avenue on the north end to Avenue U on the south, was completed in 1921 atop an 8,000-foot concrete seawall, replacing a wooden boardwalk-and-pier structure from 1908 that winter storms battered apart within a few years. At its dedication, an eight-year-old local girl named Martha Hagmeier broke a bottle of seawater on the new concrete to christen it -- a small, specific, sourced detail that says something real about the town's self-image as a place built for ordinary families, not a resort for the few. Where the Prom meets Broadway Street sits the Turnaround, the literal spot where Broadway dead-ends at the ocean, marked since 1990 by a bronze statue of Lewis and Clark; it is both a functioning traffic circle and, by any reasonable measure, the most photographed single spot on the Oregon coast.

That family-resort identity is not incidental color -- it is a structural, commercial fact about the town. Funland Arcade has operated on Broadway since 1929 and is described as the largest arcade on the north Oregon coast; the Seaside Aquarium, founded in 1937 and still run in part by descendants of its founders, is one of the oldest aquariums on the West Coast and has let visitors hand-feed its seals for more than eighty years. Downtown Broadway itself runs from Highway 101 to the Turnaround, lined with salt-water taffy shops, go-cart tracks, and family arcades in a way that reads as genuinely different from the art-gallery, no-chain-business character of Cannon Beach a few miles south -- Seaside has never positioned itself as an upscale escape, and that is a real, deliberate market difference rather than a lesser version of its more polished neighbor.

Seaside's other defining historical claim predates the resort town by more than a century and is independently verifiable at the National Park Service level. On December 28, 1805, a five-man detail left the Lewis and Clark Expedition's winter encampment at Fort Clatsop to find a site for making salt, since the Corps had run out and needed it to preserve meat for the journey home. They found a spot roughly 15 miles south, near a Clatsop-Nehalem village, within what is now the city of Seaside. Privates Joseph Field, William Bratton, and George Gibson then spent close to fifty days there, in rotating shifts, boiling seawater in kettles over a stone furnace through cold, wet coastal winter storms. When the detail finally left on February 20, 1806, they had produced roughly 3.5 bushels -- about 28 gallons -- of salt, which Meriwether Lewis himself described in his journal as 'excellent, fine, strong, and white.' The reconstructed cairn marking that site sits within Seaside today and is administered as part of the Lewis and Clark National Historical Park, a real, citable historic landmark rather than a tourism embellishment.

The other defining fact about modern Seaside is its documented tsunami exposure, and this page treats it with the same directness it treats the Prom and the Salt Works. Seaside occupies a narrow, low-lying spit between the Pacific Ocean and the Necanicum River, with independent reporting and DOGAMI's own hazard analysis describing roughly 80% of the town's population as living at or below approximately 15 feet of elevation. A 2015 DOGAMI local evacuation analysis (Open-File Report O-15-02, by Priest, Stimely, Madin, and Watzig) modeled evacuation routes for Seaside and neighboring Gearhart under the state's largest earthquake scenarios and found evacuation west of the Necanicum River 'extremely difficult' for the biggest modeled tsunami scenarios, particularly for anyone with mobility limitations, given that most of the town's population sits on that same side of the river. That finding was not shelved -- it became the direct basis for a real, contested local decision: Seaside School District voters rejected a school-relocation bond in 2013, then approved a $100 million bond in 2016 to move the district's middle and high schools out of the inundation zone entirely. Timber company Weyerhaeuser donated 80 acres of hilltop land toward the project, cutting the second bond's cost by roughly 37.5% compared with the failed 2013 version, and the consolidated hilltop campus opened in 2021, explicitly engineered to double as an earthquake and tsunami refuge for the broader community, not just students.

Several practical facts that matter to a buyer were not independently confirmed to the level this page is willing to state as settled, and it does not invent them. Not confirmed: a single, current, code-area-specific combined property tax rate for a particular Seaside parcel (Oregon's Measure 50 system means assessed value, and therefore the effective bill, varies significantly parcel to parcel regardless of a home's sale price -- covered in depth on this site's Property Tax page); a Seaside-specific homeowners or flood insurance premium as opposed to general Oregon and NFIP ranges; and the exact current occupancy or vacancy rate of Seaside's short-term rental inventory under the city's 2024-2025 zoning overhaul. Anyone seriously evaluating a purchase here should confirm current numbers directly with the Clatsop County Department of Assessment and Taxation, the City of Seaside's Community Development Department, a licensed Oregon insurance agent, and a Seaside-focused buyer's agent rather than assuming a figure found online is current.