SR 707 (Dixie Hwy) over St. Lucie River

Map 

Facts 

Name:	SR 707 (Dixie Hwy) over St. Lucie River
Structure number:	890003
Location:	1/4Mi W of New Roosevelt
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	94.5 ft. [28.8 m]
Total length:	1229.4 ft. [374.7 m]
Roadway width between curbs:	27.9 ft. [8.5 m]
Deck width edge-to-edge:	37.1 ft. [11.3 m]
Vertical clearance above deck:	19.4 ft. [5.9 m]
Vertical clearance below bridge:	13.8 ft. [4.2 m]
Owner:	State Highway Agency [01]
Year built:	1964
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 18 / HS 20 [5]
Main span material:	Steel [3]
Main span design:	Movable - Bascule [16]
Deck type:	Concrete Cast-in-Place [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	41,000 [as of 2008]
Truck traffic:	3% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Satisfactory [6 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]
Pier/abutment protection:	In place but re-evaluation of design suggested [4]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	63.4 tons [57.6 metric tons]
Inventory rating:	38.0 tons [34.5 metric tons]
Sufficiency rating:	72.2

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	8,600 [as of 1998]
Truck traffic:	5% 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:	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]
Pier/abutment protection:	In place and functioning [2]
Scour condition:	Bridge over "tidal" waters that has not been evaluated for scour, but considered low risk. [T]
Operating rating:	63.4 tons [57.6 metric tons]
Inventory rating:	38.0 tons [34.5 metric tons]
Sufficiency rating:	73.5
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$3,012,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	21,986 [as of 1988]
Deck condition:	Good [7 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 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:	62.4 tons [56.7 metric tons]
Inventory rating:	37.6 tons [34.2 metric tons]
Sufficiency rating:	69.9
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$22,000,000

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