IA 93 over PLUMB CREEK

Map 

Facts 

Name:	IA 93 over PLUMB CREEK
Structure number:	000000000015721
Location:	0931226
Purpose:	Carries highway over waterway
Route classification:	Minor Arterial (Rural) [06]
Length of largest span:	82.0 ft. [25.0 m]
Total length:	221.1 ft. [67.4 m]
Roadway width between curbs:	36.1 ft. [11.0 m]
Deck width edge-to-edge:	39.4 ft. [12.0 m]
Skew angle:	15°
Owner:	State Highway Agency [01]
Year built:	1976
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:	3
Main spans material:	Prestressed concrete [5]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Low slump Concrete [4]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,370 [as of 2008]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 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:	Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:	69.5 tons [63.2 metric tons]
Inventory rating:	26.4 tons [24.0 metric tons]
Sufficiency rating:	91.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,380 [as of 1998]
Truck traffic:	11% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 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:	Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:	70.2 tons [63.8 metric tons]
Inventory rating:	26.7 tons [24.3 metric tons]
Sufficiency rating:	89.4

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,210 [as of 1989]
Truck traffic:	12% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	95.2
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

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