HILL RD over ZOO WALKWAY

Map 

Facts 

Name:	HILL RD over ZOO WALKWAY
Structure number:	027301000030430
Location:	301043 IN HIGHLAND PARK
Purpose:	Carries highway and pedestrian walkway over pedestrian/bicycle trail
Route classification:	Local (Urban) [19]
Length of largest span:	48.9 ft. [14.9 m]
Total length:	48.9 ft. [14.9 m]
Roadway width between curbs:	39.4 ft. [12.0 m]
Deck width edge-to-edge:	53.2 ft. [16.2 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1940
Year reconstructed:	1980
Historic significance:	Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:	M 13.5 / H 15 [2]
Main span material:	Masonry [8]
Main span design:	Arch - Deck [11]
Deck type:	Not applicable [N]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	11,200 [as of 2007]
Truck traffic:	5% of total traffic
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	53.9 tons [49.0 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	93.3
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	11,200 [as of 1999]
Truck traffic:	5% of total traffic
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	53.5 tons [48.6 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	93.3
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	11,000 [as of 1991]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	53.5 tons [48.6 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	93.5
Recommended work:	Other structural work, including hydraulic replacements. [38]
Estimated cost of work:	$157,000

Comments