US20 over STREAM


+42.46701, -96.98649
42°28'01" N, 96°59'11" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US20 over STREAM
Structure number:S020 39987
Location:8NE LAUREL
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:16.1 ft. [4.9 m]
Total length:33.1 ft. [10.1 m]
Roadway width between curbs:39.4 ft. [12.0 m]
Deck width edge-to-edge:42.3 ft. [12.9 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1935
Year reconstructed:1974
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:2
Main spans material:Concrete [1]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2014 

Status:Open, no restriction [A]
Average daily traffic:2,505 [as of 2012]
Truck traffic:23% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Better than present minimum criteria [7]
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:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:28.9 tons [26.3 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:55.7
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201455.7Structurally deficientFairFairPoor2505
September 201280.2Not deficientFairFairFair2090
September 201081.2Not deficientFairFairFair2320
March 201081.2Not deficientFairFairFair2320
September 200881.2Not deficientFairFairFair2320
August 200684.3Not deficientFairFairFair1995
March 200483.3Not deficientFairFairFair2100
September 200283.3Not deficientFairFairFair2075
March 200083.3Not deficientFairFairFair2070
April 199883.3Not deficientFairFairFair2070
April 199682.4Not deficientFairFairFair1600
March 199482.5Not deficientFairFairFair1495
March 199282.5Not deficientFairFairFair1545
February 199082.5Not deficientFairFairFair1545