Lannon Stone
View Exhibit mapMany structures in Southeastern Wisconsin, especially in the Milwaukee area, are constructed with materials known as "Lannon Stone" and "Cream City Brick." Milwaukee, in fact, is known as "The Cream City" but it has nothing to do with Wisconsin's reputation as "America's Dairyland."
Lannon Stone is actually dolomite. It's a type of limestone that runs through The Niagara Escarpment, which runs underneath most of the Great Lakes. In an area northwest of Milwaukee, in Waukesha County, the stone was found right on the surface. Settlers built thick-walled homes from the stone that they just lifted from the surface.
William Lannon was one of those settlers, and he recognized an opportunity to quarry and sell the stone. Quarries sprang up around an area surrounding "Lannon Springs" and the limestone that was quarried there became known as "Lannon Stone." (Today, stone homes are actually frame structures covered with a veneer of Lannon Stone.)

State Historical Marker in the Village of Lannon.
Many bridges in Southeastern Wisconsin, like the ones shown in this category, were built in the depression era and clad with a veneer of Lannon Stone.
Lannon Stone was widely used in the construction of structures in the Milwaukee County Parks. It is still widely used today, and in the Milwaukee County bridge listings, you will find some modern bridges, as well as replacement bridges, that are clad in Lannon Stone.
Cream City Brick can also be found in many Milwaukee area structures, including bridges. The soil in southeastern Wisconsin is red lacustrine clay. When it was used in the manufacture of bricks, the clay turned a yellowish-cream color when fired. So many structures in the Milwaukee area were built using the bricks that visitors began to call Milwaukee "The Cream City." As a result, the bricks became known as "Cream City Brick."
Cream City Bricks were distributed widely. Many lighthouses around the Great Lakes and buildings in Chicago, were constructed with Cream City Bricks.
As you look at the bridges in Southeastern Wisconsin, you will see many of them are clad with Lannon Stone and some with Cream City Brick. You might also notice many buildings and homes, in the background, that use these distinctive materials.
Brown Deer Parkway Bridge (Milwaukee County, Wisconsin)
Built 1936Concrete arch bridge over Park Lagoon on Brown Deer Parkway in MilwaukeeOpen to traffic
Columbia Road Bridge (Ozaukee County, Wisconsin)
Built 1949; rehabilitated 1988Steel stringer bridge over Cedar Creek on Columbia Road (Former Wis 57)Open to traffic
CP - Oconomowoc River Arch Bridge (Waukesha County, Wisconsin)
Built 1902 by The Milwaukee Road Railroad (CMStP&P RR)Closed-spandrel arch bridge over Oconomowoc River on Canadian Pacific Railroad in OconomowocOpen to traffic
Highland Drive Bridge (Ozaukee County, Wisconsin)
Built 1939Concrete arch bridge with stone facing over Milwaukee River on Highland Drive in CedarburgOpen to traffic
Honey Creek Bridge Two (Milwaukee County, Wisconsin)
Built 1932, Replaced 2007Lost bridge over Honey Creek on Honey Creek Parkway in WauwatosaReplaced by new bridge
Honey Creek Footbridge (Milwaukee County, Wisconsin)
Construction began 1933 by CWA, Completed by WPA ca. 1935Bridge over Honey Creek on Walking Path - Yes, it really DOES cross Honey CreekOpen to pedestrians
Honey Creek Parkway Bridge One (Milwaukee County, Wisconsin)
Built 1933, Replaced 2007Lost bridge over Honey Creek on Honey Creek Parkway in WauwatosaReplaced by new bridge
Lac La Belle Bridge (Waukesha County, Wisconsin)
Built 1925, Replaced 2007Lost stringer bridge over Lac La Belle Lake on Lake Road - Former Wisc 67 in OconomowocReplaced by new bridge
Lincoln Creek Bridge (Milwaukee County, Wisconsin)
Built 1936Concrete arch bridge over Lincoln Creek on N. 35th Street in MilwaukeeReplaced
N. Teutonia Avenue Bridge (Milwaukee County, Wisconsin)
Built 1936; Reconstructed in 2002Concrete arch bridge over Lincoln Creek on N. Teutonia Avenue in MilwaukeeOpen to traffic
Oak Creek Mill Road Bridge (Milwaukee County, Wisconsin)
Built 1931; Closed to traffic for flood damage 6/08; Repaired-Reopened 8/08;Concrete arch bridge over Oak Creek on Mill Road in South MilwaukeeOpen to traffic after repair of flood damage
Oak Creek Parkway Bridge (Milwaukee County, Wisconsin)
Built 1931Concrete arch bridge over Oak Creek on Oak Creek Parkway in South MilwaukeeOpen to traffic
Oakwood Avenue Bridge (Waukesha County, Wisconsin)
Built 1928, Replaced 2007Lost stringer bridge over Fowler Lake on Oakwood Avenue in OconomowocReplaced by new bridge
Palm Tree Road Bridge (Fond du Lac County, Wisconsin)
Built in 1903; Repaired in 1950 by Francis DreifuerstStone arch bridge over Sheboygan River on Palm Tree RoadOpen to traffic
Port Washington Road Bridge (Milwaukee County, Wisconsin)
Built 1913, Replaced 2004Concrete arch bridge over Milwaukee River on N. Port Washington Road in GlendaleDemolished - Replaced by a new bridge
Promen Drive Bridge (Fond du Lac County, Wisconsin)
Built 1927Concrete arch bridge over Lakeside Creek on Promen Drive in Fond du LacOpen to traffic
Promen Drive Bridge (Fond du Lac County, Wisconsin)
Built 1927Stringer bridge over Lakeside Creek on Promen Drive in Fond du LacOpen to traffic
Range Line Road Bridge (Milwaukee County, Wisconsin)
Built 1935Charles S. Whitney Renaissance Revival Design arch bridge over Milwaukee River on Range Line Road in River HillsOpen to traffic
River Road Bridge (Waukesha County, Wisconsin)
Built 1950Stone arch bridge over Fox River on River Road in Menomonee FallsClosed to all traffic
W. North Avenue Bridge East (Milwaukee County, Wisconsin)
Built 1934Concrete arch bridge over Menomonee River on North Avenue in WauwatosaOpen to traffic
W. North Avenue Bridge West (Milwaukee County, Wisconsin)
Built 1934Concrete arch bridge over Menomonee River on North Avenue in WauwatosaOpen to traffic