US 31 NBL over CATOMA CREEK

Map 

Facts 

Name:	US 31 NBL over CATOMA CREEK
Structure number:	005088
Old structure number:	00000003510169B (from 1992 edition)
Location:	0.6 MI S OF SO BY PASS
Purpose:	Carries highway over waterway
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	69.9 ft. [21.3 m]
Total length:	783.2 ft. [238.7 m]
Roadway width between curbs:	27.9 ft. [8.5 m]
Deck width edge-to-edge:	30.8 ft. [9.4 m]
Owner:	State Highway Agency [01]
Year built:	1955
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:	21
Main spans material:	Concrete continuous [2]
Main spans design:	Tee beam [04]
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:	7,205 [as of 2008]
Truck traffic:	9% of total traffic
Deck condition:	Poor [4 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	65.1 tons [59.2 metric tons]
Inventory rating:	39.1 tons [35.5 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	62.9
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$7,559,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	10,935 [as of 1997]
Truck traffic:	4% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:	Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:	64.9 tons [59.0 metric tons]
Inventory rating:	38.9 tons [35.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	64.4
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$3,298,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	19,245 [as of 1990]
Truck traffic:	9% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 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:	47.5 tons [43.2 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	76.1
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$4,123,000

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