Share:

US 67NB-18-LM 7.37 over BLACK RIVER

Map 

Coordinates:
+36.25397, -90.96939
36°15'14" N, 90°58'10" W
Source: National Bridge Inventory (1992, 2000, 2010 editions)
Information not verified. Use at your own risk.

Facts 

Name:US 67NB-18-LM 7.37 over BLACK RIVER
Structure number:000000000000483
Location:0.25 MI S US 62
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:115.2 ft. [35.1 m]
Total length:1254.0 ft. [382.2 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:26.9 ft. [8.2 m]
Vertical clearance above deck:15.1 ft. [4.6 m]
Owner:State Highway Agency [01]
Year built:1934
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:M 13.5 / H 15 [2]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

2010 Inspection 

Status:Posted for load [P]
Average daily traffic:11,500 [as of 2008]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 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]
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:32.9 tons [29.9 metric tons]
Inventory rating:19.9 tons [18.1 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:32.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,000

2000 Inspection 

Status:Open, no restriction [A]
Average daily traffic:10,000 [as of 1994]
Truck traffic:1% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 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:Scour calculation/evaluation has not been made. [6]
Operating rating:43.6 tons [39.6 metric tons]
Inventory rating:16.8 tons [15.3 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:13.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,198,000

1992 Inspection 

Status:Open, no restriction [A]
Average daily traffic:6,630 [as of 1987]
Truck traffic:1% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 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:Scour calculation/evaluation has not been made. [6]
Operating rating:43.6 tons [39.6 metric tons]
Inventory rating:16.8 tons [15.3 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:17.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$9,340,000