I 55 over PEARL RIVER CHANNEL

Map 

Facts 

Name:	I 55 over PEARL RIVER CHANNEL
Structure number:	11000550250943A
Location:	1.2 MI N JCT I 55 I 20
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	129.9 ft. [39.6 m]
Total length:	1032.2 ft. [314.6 m]
Roadway width between curbs:	71.9 ft. [21.9 m]
Deck width edge-to-edge:	74.8 ft. [22.8 m]
Owner:	State Highway Agency [01]
Year built:	1967
Year reconstructed:	1997
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:	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:	53,000 [as of 2006]
Truck traffic:	20% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
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:	51.3 tons [46.6 metric tons]
Inventory rating:	39.4 tons [35.8 metric tons]
Sufficiency rating:	93.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	42,500 [as of 1996]
Truck traffic:	13% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
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:	51.3 tons [46.6 metric tons]
Inventory rating:	39.4 tons [35.8 metric tons]
Sufficiency rating:	94.0

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	29,980 [as of 1989]
Truck traffic:	13% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
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:	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:	89.6

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