I-39/US 51 NB over BNSF RR

Map 

Facts 

Name:	I-39/US 51 NB over BNSF RR
Structure number:	062005200000000
Location:	1.14 MI S 0F ILL 17
Purpose:	Carries highway over railroad
Route classification:	Principal Arterial - Interstate (Rural) [01]
Length of largest span:	63.0 ft. [19.2 m]
Total length:	165.0 ft. [50.3 m]
Roadway width between curbs:	40.0 ft. [12.2 m]
Deck width edge-to-edge:	43.0 ft. [13.1 m]
Vertical clearance below bridge:	23.0 ft. [7.0 m]
Skew angle:	10°
Owner:	State Highway Agency [01]
Year built:	1989
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:	3
Main spans material:	Prestressed concrete continuous [6]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]

Latest Available Inspection: March 2016 

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction [A]
Average daily traffic:	8,250 [as of 2015]
Truck traffic:	34% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Fair [5 out of 9]
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:	Better than present minimum criteria [7]
Underclearances appraisal:	Equal to present desirable criteria [8]
Roadway alignment appraisal:	Equal to present desirable criteria [8]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	75.6 tons [68.7 metric tons]
Inventory rating:	42.5 tons [38.6 metric tons]
Sufficiency rating:	85.1

Previous Inspections 

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
March 2016	85.1	Fair	Fair	Fair	Fair	-	8250
March 2015	67.8	Poor	Fair	Fair	Poor	SD	8350
March 2014	70.0	Poor	Satisfactory	Satisfactory	Poor	SD	7500