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US52 Running Slough Bridge


Looking North

From Sabula Island.

Photo taken by Quinn Phelan in May 2010


BH Photo #164583

Street View 


Bridge was on Iowa approach causeway to Savanna-Sabula Bridge.

While plans were being prepared to replace this bridge, one of its piers was undermined by floodwaters on February 27, 2018, and the whole bridge sagged. It was immediately closed, and subsequently demolished.

This closed the whole Mississippi River crossing, including the New Savanna-Sabula Bridge. A detour, and ferry and bus services, were offered.

The replacement concrete girder deck span was opened in Sept. 2018.


Through truss bridge over Running Slough (Mississippi River Overflow) on US 52/IA 64 in Sabula
Sabula, Jackson County, Iowa
Closed due to washout of pier March 2018; replaced with concrete girder span
Built 1933; rehabilitated 1985; lost February 27, 2018 when it sagged after a pier was undermined
Riveted Pratt through truss
Length of largest span: 120.1 ft.
Total length: 342.2 ft.
Deck width: 20.0 ft.
Vertical clearance above deck: 13.8 ft.
Approximate latitude, longitude
+42.07540, -90.17573   (decimal degrees)
42°04'31" N, 90°10'33" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/733632/4662007 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2015)
Inventory numbers
IA 29950 (Iowa bridge number)
BH 13720 (Bridgehunter.com ID)
Inspection report (as of July 2016)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 29.6 (out of 100)
View more at BridgeReports.com


Built 1933 (667)
Built during 1930s (12,165)
Destroyed by flood (599)
Have street view (28,892)
Iowa (6,791)
Jackson County, Iowa (78)
Lost (28,414)
Lost 2018 (233)
Lost during 2010s (3,599)
Owned by state (16,553)
Pratt through truss (6,049)
Pratt truss (10,286)
Sabula, Iowa (7)
Span length 100-125 feet (4,553)
Through truss (16,737)
Total length 250-500 feet (5,506)
Truss (35,407)
US 52 (44)

Update Log 

  • October 2, 2018: Updated by Alexander D. Mitchell IV: Replacement opened to trafic
  • July 11, 2018: Updated by Roger Deschner: Bridge lost when pier undermined in flood
  • May 31, 2018: Updated by Luke: Demolished
  • March 2, 2018: Updated by Luke: Closed; Will probably be replaced.
  • May 2, 2012: New photos from J.R. Manning
  • May 8, 2010: New photo from Quinn Phelan
  • April 20, 2010: Updated by Nathan Holth: Updated GPS and info.

Related Bridges 



US52 Running Slough Bridge
Posted March 2, 2018, by Luke