RT AA E over IS 55


+38.14287, -90.33668
38°08'34" N, 90°20'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:RT AA E over IS 55
Structure number:1668
Old structure number:A1987R 1 (from 1992 edition)
Location:S 2 T 39 N R 6 E
Purpose:Carries highway over highway
Route classification:Minor Collector (Rural) [08]
Length of largest span:138.8 ft. [42.3 m]
Total length:394.0 ft. [120.1 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.5 ft. [9.3 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:52°
Owner:State Highway Agency [01]
Year built:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: December 2015 

Status:Open, no restriction [A]
Average daily traffic:547 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:36.6 tons [33.3 metric tons]
Inventory rating:21.8 tons [19.8 metric tons]
Sufficiency rating:71.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201571.0Not deficientSatisfactoryFairSatisfactory547
September 201459.3Structurally deficientSatisfactoryPoorSatisfactory536
November 201275.4Not deficientSatisfactoryFairSatisfactory570
January 201275.3Not deficientSatisfactoryFairSatisfactory632
January 201087.2Not deficientSatisfactoryGoodSatisfactory666
January 200887.2Not deficientSatisfactoryGoodSatisfactory598
January 200687.3Not deficientSatisfactoryGoodSatisfactory528
January 200487.1Not deficientSatisfactoryVery GoodSatisfactory724
November 200188.1Not deficientSatisfactoryVery GoodSatisfactory738
January 200187.6Not deficientSatisfactoryVery GoodSatisfactory432
200080.7Not applicable---5400
October 199887.6Not deficientSatisfactoryVery GoodGood418
December 199786.6Not deficientGoodVery GoodGood418
January 199787.4Not deficientGoodVery GoodGood591
January 199688.5Not deficientGoodGoodGood591
December 199488.5Not deficientGoodGoodVery Good546
January 199484.6Not deficientGoodGoodVery Good537
February 199384.6Not deficientGoodGoodVery Good537
December 199184.6Not deficientGoodGoodVery Good506