WB NW 21st Street over MIA & MIC Ramps

Map 

Facts 

Name:	WB NW 21st Street over MIA & MIC Ramps
Structure number:	874647
Location:	MIA Intchg E/O LeJeune Rd
Purpose:	Carries highway over highway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	129.6 ft. [39.5 m]
Total length:	227.0 ft. [69.2 m]
Roadway width between curbs:	43.0 ft. [13.1 m]
Deck width edge-to-edge:	51.2 ft. [15.6 m]
Vertical clearance below bridge:	16.7 ft. [5.1 m]
Skew angle:	24°
Owner:	County Highway Agency [02]
Year built:	2008
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:	2
Main spans material:	Steel continuous [4]
Main spans design:	Stringer/Multi-beam or girder [02]
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:	11,567 [as of 2004]
Truck traffic:	5% of total traffic
Deck condition:	Excellent [9 out of 9]
Superstructure condition:	Excellent [9 out of 9]
Substructure condition:	Excellent [9 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	68.3 tons [62.1 metric tons]
Inventory rating:	40.9 tons [37.2 metric tons]
Sufficiency rating:	92.4

Comments