NFA 1256 (SA 4716) over KNOB FORK CREEK

Map 

Facts 

Name:	NFA 1256 (SA 4716) over KNOB FORK CREEK
Structure number:	47S24100005
Location:	CENTRAL AVE-E OF I75
Purpose:	Carries highway over waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	22.6 ft. [6.9 m]
Total length:	69.9 ft. [21.3 m]
Roadway width between curbs:	51.8 ft. [15.8 m]
Deck width edge-to-edge:	59.4 ft. [18.1 m]
Skew angle:	45°
Owner:	City or Municipal Highway Agency [04]
Year built:	2006
Historic significance:	Historical significance is not determinable at this time [4]
Design load:	MS 18 / HS 20 [5]
Number of main spans:	3
Main spans material:	Concrete continuous [2]
Main spans design:	Culvert [19]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	8,130 [as of 2007]
Truck traffic:	3% of total traffic
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]
Culvert condition:	No noticeable or noteworthy deficiencies which affect the condition of the culvert. Insignificant scrape marks caused by drift. [8]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	97.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	7,840 [as of 1999]
Truck traffic:	3% of total traffic
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Culvert condition:	Large spalls, heavy scaling, wide cracks, considerable efflorescence or opened construction joint permitting loss of backfill. Considerable settlement or misalignment. Considerable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection throughout, extensive corrosion or deep pitting. [4]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	37.6 tons [34.2 metric tons]
Inventory rating:	21.8 tons [19.8 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	27.8
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$280,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	6,200 [as of 1991]
Truck traffic:	1% of total traffic
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Culvert condition:	Large spalls, heavy scaling, wide cracks, considerable efflorescence or opened construction joint permitting loss of backfill. Considerable settlement or misalignment. Considerable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection throughout, extensive corrosion or deep pitting. [4]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	37.6 tons [34.2 metric tons]
Inventory rating:	21.8 tons [19.8 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	30.0
Recommended work:	Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:	$85,000

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