US 71 N over CST 18TH ST


+39.09142, -94.57192
39°05'29" N, 94°34'19" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 71 N over CST 18TH ST
Structure number:11989
Location:S 8 T 49 N R 33 W
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:75.1 ft. [22.9 m]
Total length:165.0 ft. [50.3 m]
Roadway width between curbs:65.6 ft. [20.0 m]
Deck width edge-to-edge:67.9 ft. [20.7 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:36,685 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Excellent [9 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:85.1 tons [77.4 metric tons]
Inventory rating:49.5 tons [45.0 metric tons]
Sufficiency rating:97.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201597.3GoodVery GoodExcellentVery Good-36685
September 201397.3GoodVery GoodExcellentVery Good-36685
September 201197.3GoodVery GoodExcellentVery Good-35919
January 201097.3GoodVery GoodExcellentExcellent-36240
January 200897.3GoodExcellentExcellentExcellent-34995
November 200595.9GoodExcellentExcellentExcellent-24056
September 200395.9GoodExcellentExcellentExcellent-24323
October 200199.7GoodExcellentExcellentExcellent-5929

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,2961,296000
Steel Protective Coatingsq. ft.16,01016,010000
Reinforced Concrete Decksq. ft.11,16210,81235000
Reinforced Concrete Columneach88000
Reinforced Concrete Abutmentlinear ft.182180200
Reinforced Concrete Pier Caplinear ft.136131500
Elastomeric Bearingeach1616000
Enclosed/Concealed Bearingeach1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.417417000