TR-105 Crosby Rd over Rock Creek


+41.81860, -89.96811
41°49'07" N, 89°58'05" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:TR-105 Crosby Rd over Rock Creek
Structure number:098506100000000
Old structure number:000098506135456 (from 1992 edition)
Location:.5M NW MORRISON
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:87.3 ft. [26.6 m]
Total length:140.1 ft. [42.7 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:31.8 ft. [9.7 m]
Owner:County Highway Agency [02]
Year built:2001
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 [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:600 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:83.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairGoodFairVery Good60083.7
May 2016FairGoodFairVery Good60083.7
May 2014FairGoodSatisfactoryVery Good60094.8
April 2010GoodGoodGoodVery Good50094.8
May 2008GoodVery GoodVery GoodVery Good50094.8
March 2005GoodVery GoodVery GoodVery Good60094.8
December 2003GoodVery GoodVery GoodVery Good60094.8
December 2001GoodExcellentExcellentExcellent65094.7