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W. North Avenue Bridge East

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Photos 

The north face

A virtual twin to this bridge, albeit in worse condition, is located just a few yards to the west of this bridge, on North Avenue.

Photo taken by J.R. Manning in March 2008

Map 

Lannon Stone 

Written by J.R. Manning

"Lannon Stone" is a building material that is commonly used in the Milwaukee area. It was used extensively in Milwaukee County Parks during depression era construction projects for structures of all kinds, many of them were WPA projects.

From tiny control buildings to arch bridges to structures of many kinds, Lannon Stone is ubiquitous, even moreso than Cream City Brick, also a common building material in the area. Many county golf course buildings are constructed of the attractive, white stone, including clubhouses. For example, the impressive club house that overlooks the golf course in Brown Deer Park, is constructed of Lannon Stone. Brown Deer Park is the location of a PGA golf tournament, formerly known as the Greater Milwaukee Open.

The stone is actually dolomite but takes its name from the area, northwest of Milwaukee, from which it is quarried.

This bridge uses "Lannon Stone" for facing and parapet walls.

Facts 

Overview
Concrete arch bridge over Menomonee River on North Avenue in Wauwatosa
Location
Wauwatosa, Milwaukee County, Wisconsin
Status
Open to traffic
History
Built 1934
Builder
- Jacobus & Winging Concrete Construction Co.
Design
Closed-spandrel concrete arch with stone facing
Dimensions
Length of largest span: 67.9 ft.
Total length: 78.1 ft.
Deck width: 56.1 ft.
Approximate latitude, longitude
+43.06040, -88.03335   (decimal degrees)
43°03'37" N, 88°02'00" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/415855/4768040 (zone/easting/northing)
Quadrangle map:
Wauwatosa
Inventory number
BH 34870 (Bridgehunter.com ID)
Inspection (as of 12/2012)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 56.5 (out of 100)
Average daily traffic (as of 2010)
16,200

Update Log 

  • April 6, 2008: Updated by J.R. Manning: Added bridge to new category, Lannon Stone
  • March 16, 2008: Essay added by J.R. Manning
  • March 15, 2008: Updated by J.R. Manning

Sources 

  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net