30TH ST over BEAR CR


+39.68561, -91.38789
39°41'08" N, 91°23'16" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:30TH ST over BEAR CR
Structure number:18424
Old structure number:18500091 064 (from 1992 edition)
Location:S 31 T 57 N R 4 W
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:78.1 ft. [23.8 m]
Total length:81.0 ft. [24.7 m]
Roadway width between curbs:36.4 ft. [11.1 m]
Deck width edge-to-edge:36.4 ft. [11.1 m]
Owner:County Highway Agency [02]
Year built:1994
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span design:Box beam or girders - Multiple [05]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,100 [as of 2017]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Excellent [9 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:96.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2017GoodGoodGoodExcellent210096.7
February 2015GoodVery GoodVery GoodExcellent210096.7
March 2013GoodVery GoodVery GoodExcellent210096.7
March 2011GoodVery GoodVery GoodExcellent210096.7
February 2009GoodVery GoodVery GoodExcellent210096.7
February 2007GoodVery GoodVery GoodExcellent210096.7
February 2005GoodVery GoodVery GoodExcellent210096.7
March 2003GoodVery GoodVery GoodExcellent100097.9
March 2001GoodVery GoodVery GoodExcellent100097.9
March 1999GoodVery GoodVery GoodExcellent100097.9
March 1997GoodVery GoodVery GoodExcellent100097.9
February 1995GoodVery GoodVery GoodExcellent100097.9