5740C over ARKANSAS RIVER

Map 

Facts 

Name:	5740C over ARKANSAS RIVER
Structure number:	021660000000000
Old structure number:	57E0441N3590006 (from 1992 edition)
Location:	BLACKBURN,5.5S OF HWY 20
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) [07]
Length of largest span:	160.1 ft. [48.8 m]
Total length:	1136.2 ft. [346.3 m]
Roadway width between curbs:	18.4 ft. [5.6 m]
Deck width edge-to-edge:	19.0 ft. [5.8 m]
Vertical clearance above deck:	15.1 ft. [4.6 m]
Owner:	County Highway Agency [02]
Year built:	1928
Historic significance:	Historical significance is not determinable at this time [4]
Number of main spans:	6
Main spans material:	Steel [3]
Main spans design:	Truss - Thru [10]
Deck type:	Corrugated Steel [6]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Posted for load [P]
Average daily traffic:	160 [as of 2008]
Truck traffic:	15% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:	15.0 tons [13.6 metric tons]
Inventory rating:	8.0 tons [7.3 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	15.5
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$2,298,000

2000 Inspection 

Status:	Posted for load [P]
Average daily traffic:	160 [as of 1999]
Truck traffic:	7% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Operating rating:	14.9 tons [13.5 metric tons]
Inventory rating:	11.1 tons [10.1 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	25.1
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$1,236,000

1992 Inspection 

Status:	Posted for load [P]
Average daily traffic:	160 [as of 1992]
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Serious [3 out of 9]
Substructure condition:	Serious [3 out of 9]
Channel protection:	Bank protection has failed. River control devices have been destroyed. Stream bed aggradation, degradation or lateral movement has changed the channel to now threaten the bridge and/or approach roadway. [3]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	18.6 tons [16.9 metric tons]
Inventory rating:	11.1 tons [10.1 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	10.6
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$1,628,000

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