IS 55 S over MISSISSIPPI RVR, CST WHA

Map

Coordinates:
+38.61888, -90.18547
38°37'08" N, 90°11'08" W

Source: National Bridge Inventory
Information not verified. Use at your own risk.

Name:	IS 55 S over MISSISSIPPI RVR, CST WHA
Structure number:	1244
Location:	S 23 T 45 N R 7 E
Purpose:	Carries highway over highway and waterway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	600.1 ft. `[182.9 m]`
Total length:	2165.1 ft. `[659.9 m]`
Roadway width between curbs:	117.5 ft. `[35.8 m]`
Deck width edge-to-edge:	122.1 ft. `[37.2 m]`
Vertical clearance below bridge:	54.8 ft. `[16.7 m]`
Owner:	State Highway Agency `[01]`
Year built:	1963
Year reconstructed:	2016
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	5
Main spans material:	Steel continuous `[4]`
Main spans design:	Box Beam or girders - Single or Spread `[06]`
Deck type:	Steel plate (includes orthotropic) `[5]`
Wearing surface:	Epoxy Overlay `[5]`

Good/Fair/Poor Condition:	Poor
Status:	Open, no restriction `[A]`
Average daily traffic:	55,146 `[as of 2015]`
Truck traffic:	18% of total traffic
Deck condition:	Poor `[4 out of 9]`
Superstructure condition:	Poor `[4 out of 9]`
Substructure condition:	Fair `[5 out of 9]`
Structural appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Deck geometry appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Underclearances appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. `[6]`
Pier/abutment protection:	In place and functioning `[2]`
Scour condition:	Bridge is scour critical; bridge foundations determined to be unstable. `[3]`
Operating rating:	55.4 tons `[50.4 metric tons]`
Inventory rating:	33.7 tons `[30.6 metric tons]`
Sufficiency rating:	56.7
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$78,539,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
February 2016	56.7	Poor	Poor	Poor	Fair	SD	55146
March 2013	55.1	Poor	Fair	Poor	Fair	SD	101755
August 2011	83.8	Fair	Satisfactory	Satisfactory	Satisfactory	-	98587
August 2009	83.7	Fair	Satisfactory	Satisfactory	Satisfactory	-	100589
February 2007	83.8	Fair	Satisfactory	Satisfactory	Satisfactory	-	99193
September 2003	82.8	Fair	Fair	Satisfactory	Satisfactory	-	98170
July 2002	84.0	Fair	Good	Satisfactory	Satisfactory	-	96151
September 2001	85.9	Fair	Good	Satisfactory	Satisfactory	-	99236