5 votes

16th Street Viaduct


Looking North from Pierce Street

The 16th Street Viaduct stretches 8/10 mile across the Menomonee River Valley, crossing streets, railroad tracks, the Menomonee River, industry, a Native American casino and the Hank Aaron State Trail. It was built in 1929 and refurbished in 1986, including a new, wider deck and updated safety features. It continues to be a vital link between the north and south sides of Milwaukee and carries a great deal of both vehicle and pedestrian traffic on a daily basis.

It has 89 main spans in the 18 bridges that comprise the viaduct and an additional 14 spans that form the ramp to Emmber Lane.

Photo taken by J.R. Manning in July 2008


BH Photo #117254

Street View 


Girder bridge over Land, Bruce St., Canal St., Mt. Vernon Ave., Menomonee River, CNRR and Hank Aaron State Trail on 16th Street in Milwaukee
Milwaukee, Milwaukee County, Wisconsin
Open to traffic
Built 1929; rehabilitated 1986
Length of largest span: 149.9 ft.
Total length: 4,002.2 ft. (0.8 mi.)
Deck width: 56.1 ft.
Also called
James E. Groppi Unity Bridge
Approximate latitude, longitude
+43.03000, -87.93300   (decimal degrees)
43°01'48" N, 87°55'59" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/423989/4764568 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2016)
Inventory number
BH 36855 (Bridgehunter.com ID)
Inspection report (as of August 2017)
Overall condition: Fair
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 98.4 (out of 100)
View more at BridgeReports.com

Update Log 

  • March 14, 2010: Updated by J.R. Manning: Added Street View
  • July 15, 2008: New photo from J.R. Manning
  • July 10, 2008: Added by J.R. Manning


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


16th Street Viaduct
Posted July 17, 2013, by Douglas Butler (drawbridges [at] lycos [dot] com)

16th street viaduct bascule bridge drawing.

Webmaster's note: The photo that was here has been incorporated into the main site.