The Water Tower
Ypsilanti, Michigan

Home/Depot Town & the Streets/A Brick-and-Cornice Key

Depot Town & the Streets · Section 02

A Brick-and-Cornice Key

Corbelling, segmental arches, cast-iron shopfronts — learn to read a frontage.

a cast-iron shopfront column and cornice detail
Photo: wal_ 172619 / Pexels

How to read a Depot Town frontage before you walk past it

Depot Town's commercial brick — a compact run of nineteenth-century storefronts along East Cross Street — repays attention the moment you slow down enough to look upward. Most of what you need to know is written in the masonry itself: in the way bricks step outward below the roofline, in the shallow curves over windows and doorways, in the occasional flash of painted cast iron at street level. This is not ornament applied to disguise something plain. It is the plain thing, made with enough pride that the craft became legible. Here is how to read it.

Brick as structure, brick as signal

Start at the top. The dominant feature of a well-preserved Depot Town frontage is its cornice — the projecting horizontal cap that gives the building its profile against the sky. In the absence of stone or terracotta, Ypsilanti's nineteenth-century builders achieved that projection through corbelling: successive courses of brick, each one cantilevered a fraction of an inch beyond the one below, accumulating into a shelf that can extend several inches from the wall face. Run your eye along a block and you will see how many small decisions compose what reads, from the street, as a single continuous gesture. Each stepped course is load-bearing in a modest sense — the overhang is self-supporting through compression — but its primary job is visual. The cornice announces the building's top edge, separates the commercial façade from the sky, and implies that whoever built this took the public face seriously.

Corbelling is not uniform across the block. Look for variation in the number of steps, the depth of projection, the way a builder chose to finish the final course. Some cornices are plain — three or four courses, no further elaboration. Others integrate a dentil course, a row of small rectangular projections evenly spaced, before the final cap. The dentil is itself a corbelled element, each tooth being a short brick end standing proud of the course behind it. You are looking at a small vocabulary, and the buildings across from each other are speaking slightly different dialects of the same language.

Below the cornice, the upper-floor windows are often set in groups of two or three, separated by brick piers. The arches above those windows are where the second key term comes in. A true semicircular arch describes a full half-circle, the kind associated with Romanesque churches and heavy civic ambition. What you will mostly see in Depot Town is the segmental arch: a shallow curve struck from an arc that is considerably less than a semicircle, so that the crown of the arch sits only a few inches above the springing points at either side. The segmental arch is the workhorse of Victorian commercial construction — cheaper to build than a full arch, stronger than a flat lintel, and visually crisp without being fussy. Its shallow profile also allows windows to be taller relative to the bay width, which was useful in a pre-electric era when every inch of glazed opening contributed to the interior light.

Look at the brickwork within the arch itself, and then at the brickwork of the spandrel — the roughly triangular area of wall between the arch curve and the flat line of the window head below. In the better buildings, that spandrel is filled with a contrasting brick pattern, a different bond, or a recessed panel that adds shadow and depth without adding cost. In the simpler ones, it is plain stretcher-bond brick laid straight through. The difference tells you something about the building's original budget and the ambitions of whoever commissioned it.

Street level and the catalogue column

Drop your gaze to the storefronts themselves, and the material changes. Ground-floor commercial frontages were routinely rebuilt, refaced, and modernized throughout the late nineteenth and early twentieth centuries, so what you see at street level is often younger than what sits above it. But in the surviving cases — and Depot Town has several — the original treatment involved cast-iron columns flanking the display windows.

Those columns were not custom work. They came from foundry catalogues, ordered by the pattern number, shipped as components, and bolted together on site. The foundry did the ornamental thinking: Corinthian capitals, fluted shafts, decorative bases — all available at a price per running foot. The local builder assembled them. The result was a street-level vocabulary that could look remarkably consistent across a whole commercial block even when the buildings above were built by different owners at different times, because everyone was ordering from a relatively small range of catalogues circulating through the Midwest. If you know what to look for, you can sometimes spot columns from the same pattern on buildings that have no other connection. The cast-iron shopfront is its own close study, but the key at-a-glance identifier is the seam: cast iron is assembled in sections, and the vertical joint lines are visible on the shaft if the paint has not filled them entirely.

The arches above those windows are where the second key term comes in.

Reading a single building

Take any intact frontage and work it systematically: cornice, cornice detail, upper window arches, spandrel treatment, pilasters or piers dividing the bays, transom windows above the ground-floor glazing, and finally the cast-iron or brick columns at street level. Each layer was made at a slightly different moment and by people with slightly different skills and slightly different access to materials. The brickwork was local work — Ypsilanti and the broader Washtenaw County region had clay and had brickyards, and the brick in these walls has a color and texture that reflects that. The cast iron came from elsewhere, probably from a Detroit or Ohio foundry. The corbelled cornices were built by masons working from pattern books and from their own accumulated judgment.

The Thompson Block, on the north side of East Cross, is among the most legible examples remaining — its upper floors retain enough of the original brick vocabulary that you can practice most of what is described here without moving from one spot. The buildings along the south side reward comparison: similar period, similar materials, meaningful variations in how each builder handled the cornice and the arch. Stand at the Cross Street Bridge end of the block, look east, and you are looking at a nearly complete Victorian commercial streetscape — interrupted here and there, patched in places, but coherent enough that the grammar is readable.

That readability is the point. These buildings were not designed for architectural tourists; they were built as working commercial premises by people who expected them to be taken for granted. The ornament was civic habit rather than artistic statement — a shared understanding that a building facing a public street owed something to the street. The fact that we now have to consciously decode what was once simply assumed is partly a measure of how far that habit has eroded elsewhere. Depot Town kept more of it than most, which is reason enough to look up.

Keep reading