Share:

I 20 over VALLEY ST/ LYNCH CREEK

Map 

Coordinates:
+32.28512, -90.21513
32°17'06" N, 90°12'54" W
Source: National Bridge Inventory (1992, 2000, 2010 editions)
Information not verified. Use at your own risk.

Facts 

Name:I 20 over VALLEY ST/ LYNCH CREEK
Structure number:11000200250441B
Location:3.2 MI E SR 18
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:96.1 ft. [29.3 m]
Total length:1110.0 ft. [338.3 m]
Roadway width between curbs:52.5 ft. [16.0 m]
Deck width edge-to-edge:55.8 ft. [17.0 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1969
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:17
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]

2010 Inspection 

Status:Open, no restriction [A]
Average daily traffic:35,500 [as of 2006]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:63.5 tons [57.7 metric tons]
Inventory rating:38.1 tons [34.6 metric tons]
Sufficiency rating:90.2

2000 Inspection 

Status:Open, no restriction [A]
Average daily traffic:31,000 [as of 1996]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Scour calculation/evaluation has not been made. [6]
Operating rating:63.5 tons [57.7 metric tons]
Inventory rating:38.1 tons [34.6 metric tons]
Sufficiency rating:89.9

1992 Inspection 

Status:Open, no restriction [A]
Average daily traffic:30,500 [as of 1989]
Truck traffic:13% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Scour calculation/evaluation has not been made. [6]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:90.6