Fun Fact #50 Nonsensical Concrete Pads

 

Image of two massive joined cylinders (old water towers) A E Doyles Largest Log Cabin Forestry Center is in the back ground. The water tower is covered with perhaps ivy
Cropped image of Water Towers with Ivy Forestry Center in background on the left.  Image Courtesy Norman Gholston

Were the Concrete Pads on NW 28th and Thurman the Footings of the 1905 Lewis & Clark Exposition Water Towers? The Final Verdict. (updated 8/18/2025 text rewritten for clarity as the pads are no longer)

Noman standing on a patch of cement next to a fence the rest of the area has grass.  Norm in in shorts a tshit and a baseball hat.
Image of Norman Gholston standing on top of one of the cement pads June 2019.

History is a puzzle, and sometimes the most interesting discoveries are made when a piece doesn’t fit. For years, a small cluster of concrete pads at the corner of NW 28th and Thurman had sparked a persistent rumor among neighbors: were these the lost footings of the massive water towers from the 1905 Lewis & Clark Exposition? Indeed, it was a compelling theory, connecting a forgotten corner of the city to a landmark historical event.

On our walking tours, we’re dedicated to uncovering the real stories behind the City’s landmarks. Therefore, when a construction fence went up around the vacant lot, we saw our last chance to play historical detective. We had to know the truth before this little piece of history was paved over.

 

 

A map that shows the entrance to the 1905 Fair.  Each building is labeled with its use and the footage is included for each structure and the map is color coded for material types which are important details for insurance companies to access when writing policies.
Zoom and cropped image from June 1905 Color Portland Sanborn Map

The Problem with Pretty Maps

Unfortunately, the artistic rendering map of the 1905 “Lewis and Clark Centennial and American Pacific Exposition and Oriental Fair” created a false narrative. These maps, much like a modern-day subway map, were not intended to show accurate distances or true scale. They simply offered a directional guide for fair attendees. This lack of precise detail gave generations a poor sense of the fair’s true layout, a problem that grew worse after the Forestry Center burned down in 1964. With that official landmark gone, people no longer had a physical reference point to help them visualize the space, and the inaccurate maps compounded this loss of a sense of place.

The breakthrough came with a deeper dive into the archives. When we consulted a detailed June 1905 Sanborn map, the answer became clear. The map showed that our exact location housed the western end of the Museum of Art (the “Fine Art Building”), not the water towers. The towers were located much farther north, in the middle of what is now the intersection of NW 28th and Upshur. The “souvenir map” had led us astray—a great example of why primary sources are so crucial.

Always seek out the owner

The real ending to this story, however, came directly from the source. We tracked down the former owners of the property, who finally revealed the true origin of the pads. Their response was simple and direct: “They were footings for a mixed-use building (commercial and residential) that we were going to build in the mid-1990s… there is no interesting historical story behind the vacant lot.” Pouring the cement simply kept the permit open.

Pretty Propaganda poster "map"
Marketing Materials lead us astray, but it was a fun history hunt.

Fun Facts that go deeper into actual elements of the the 1905 Fair:

#73 Water Tower Moved to St. Johns

#76 Trixie The Horse

#47 Infant Incubators

#30 The American Inn

#26 Monkey Puzzle Trees

Link to Carl Abbot’s wonderful post for the Oregon Encyclopedia about the Lewis and Clark Exposition.