I20W I55S over GALLATIN ST LYNCH CK
Map
Coordinates:
+32.27570, -90.1930932°16'33" N, 90°11'35" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.
Facts
Name: | I20W I55S over GALLATIN ST LYNCH CK |
Structure number: | 110002002504580 |
Location: | 0.8 MI E I 55S/ I 20W |
Purpose: | Carries highway over highway and waterway |
Route classification: | Principal Arterial - Interstate (Urban) [11] |
Length of largest span: | 80.1 ft. [24.4 m] |
Total length: | 880.0 ft. [268.2 m] |
Roadway width between curbs: | 50.9 ft. [15.5 m] |
Deck width edge-to-edge: | 53.8 ft. [16.4 m] |
Vertical clearance below bridge: | 16.4 ft. [5.0 m] |
Owner: | State Highway Agency [01] |
Year built: | 1966 |
Historic significance: | Bridge is not eligible for the National Register of Historic Places [5] |
Design load: | MS 18+Mod / HS 20+Mod [6] |
Number of main spans: | 3 |
Main spans material: | Concrete continuous [2] |
Main spans design: | Box Beam or girders - Single or Spread [06] |
Deck type: | Concrete Cast-in-Place [1] |
Latest Available Inspection: August 2016
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 55,000 [as of 2015] |
Truck traffic: | 13% of total traffic |
Deck condition: | Satisfactory [6 out of 9] |
Superstructure condition: | Satisfactory [6 out of 9] |
Substructure condition: | Very Good [8 out of 9] |
Structural appraisal: | Equal to present minimum criteria [6] |
Deck geometry appraisal: | Somewhat better than minimum adequacy to tolerate being left in place as is [5] |
Underclearances appraisal: | Meets minimum tolerable limits to be left in place as is [4] |
Water adequacy appraisal: | Equal to present desirable criteria [8] |
Roadway alignment appraisal: | Equal to present desirable criteria [8] |
Channel protection: | Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8] |
Scour condition: | Bridge foundations determined to be stable for assessed or calculated scour condition. [5] |
Operating rating: | 56.7 tons [51.5 metric tons] |
Inventory rating: | 49.5 tons [45.0 metric tons] |
Sufficiency rating: | 83.3 |
Previous Inspections
Date | Suff. Rating | Condition | Deck | Superstructure | Substructure | SD/FO | ADT |
---|
August 2016 | 83.3 | Fair | Satisfactory | Satisfactory | Very Good | - | 55000 |
August 2014 | 86.1 | Fair | Satisfactory | Satisfactory | Very Good | - | 56500 |
August 2012 | 86.2 | Fair | Satisfactory | Satisfactory | Very Good | - | 55000 |
July 2010 | 85.5 | Good | Good | Very Good | Very Good | - | 67000 |
June 2008 | 83.8 | Good | Good | Very Good | Very Good | - | 62500 |
June 2006 | 87.2 | Good | Good | Very Good | Very Good | - | 54500 |
October 2004 | 73.4 | Good | Good | Very Good | Very Good | FO | 57500 |
September 2002 | 86.9 | Good | Good | Very Good | Very Good | - | 60000 |
September 2000 | 85.0 | Good | Good | Very Good | Very Good | - | 48500 |
September 1998 | 85.0 | Good | Good | Very Good | Very Good | - | 48500 |
February 1997 | 85.0 | Good | Good | Very Good | Very Good | - | 48500 |
February 1995 | 84.6 | Good | Good | Very Good | Very Good | FO | 40300 |
April 1991 | 84.9 | Good | Good | Very Good | Very Good | FO | 36640 |