The alley was paved in 1909 using wooden block (cedar) technique—a later example of a kind of paving once widespread in Chicago but now almost entirely vanished. It’s composed of wooden blocks about 6-10 inches long and roughly 4 inches wide, treated with creosote to last longer against moisture and wear.
In 2011, the alley underwent restoration. Some of the blocks are salvaged, others are new, with the restoration project paying attention to preserving its historic character. The alley was formally recognized in 2002 when it was added to the National Register of Historic Places.
When you stroll through, you’ll notice how the wood-blocks set in sand with concrete bands produce an almost tactile sense of stepping over sidewalks of a different era—something quieter, something strangely alive with grain and texture.
Atmosphere & Character
Though the alley is short, it’s full of character. It sits just behind the Archbishop’s mansion (sometimes referred to as the Cardinal’s residence) in the Gold Coast, giving it an elegant, tucked-away feel. The surrounding homes are stately and historic, which helps the alley feel like a time capsule amid polished urban infrastructure.
In the restored version, the wooden blocks appear fairly well aligned, though in wet weather the surface becomes more slippery, especially when rain mixes with the aged treated wood. The smell of creosote in moist conditions is noted by some visitors—it’s not overwhelming, but it’s there, lending the alley a very “old wood” aroma.
Lighting is natural (no fancy installations), and because the alley is narrow, shadows from adjacent buildings fall quickly, especially during morning or late afternoon. You’ll want a good pair of shoes (something with grip), especially if the wood has dampened.
Other Considerations
So how’s the price (and time commitment)? There’s no admission fee—it’s a public alley. Visiting takes maybe 10-15 minutes (or less), depending on how much you like to linger. It’s best combined with a walk through the Gold Coast neighborhood or nearby attractions.
Is it worth seeing if I’m not a history buff? Yes. Even if you don’t normally dig historic pavement, there’s something quietly mesmerizing about seeing a rare technique still in use—or at least preserved—in the middle of a modern city. It’s a good photo op, a chance to reflect on material history, and something different than the usual tourist stops.
Does weather affect the experience? Definitely. After rain or snow, the wood becomes slick, so be cautious. Also, long exposure to moisture over many years does wear the blocks, meaning parts of the alley show aging, unevenness, or slight sagging—expected given its age and material.
Accessibility & visibility: It’s open 24/7, being a public alley. There is no formal signage beyond historical markers. Because it’s narrow and tucked behind buildings, it could be easy to miss if you’re driving by—best to walk. Parking in the Gold Coast area can be challenging, so public transit or walking from elsewhere is advisable.
Unique History & Quirks
One striking fact: wood block paving was once very common in Chicago—hundreds of miles of wood-paved streets in the 19th century. But most have been paved over with asphalt, brick, or concrete. This alley is one of only two remaining wood block alleys in the city.
The original wood paving technique (called “Nicolson pavement”) used wood blocks (originally pine, later more durable woods like white oak or cedar) laid over a sand/gravel base, filled with coal tar to seal between blocks. That made for a quieter and less dusty/dirt prone surface than plank or crude wood planks.
In the years after its construction, this alley survived changes, decay, and the general move away from wood pavement, so its 2002 designation and 2011 restoration demonstrate community interest in preserving even the small slices of tech & material history.
Wooden Alley
📍 Between N. Astor St & N. State St, Chicago, IL 60610
Website: https://www.atlasobscura.com/places/wooden-block-alley
