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COLBY ROAD over FLAT RIVER

Map

Coordinates:
+43.26459, -85.26891
43°15'53" N, 85°16'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:COLBY ROAD over FLAT RIVER
Structure number:000000000007515
Old structure number:59314H00021B010 (from 1992 edition)
Location:0.80 MILE WEST OF M-91
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:70.9 ft. [21.6 m]
Total length:74.8 ft. [22.8 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Owner:County Highway Agency [02]
Year built:1980
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
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: April 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:723 [as of 2003]
Deck condition:Very Good [8 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:83.5 tons [75.9 metric tons]
Inventory rating:50.1 tons [45.5 metric tons]
Sufficiency rating:99.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201599.7FairVery GoodSatisfactoryVery Good-723
April 201399.7FairVery GoodSatisfactoryVery Good-723
April 201199.7FairVery GoodSatisfactoryVery Good-723
April 200999.7FairVery GoodSatisfactoryVery Good-723
April 200799.6FairVery GoodSatisfactoryVery Good-723
April 200599.7GoodVery GoodGoodVery Good-723
March 200399.6GoodVery GoodGoodVery Good-723
February 200199.6GoodVery GoodVery GoodVery Good-717
November 199899.6GoodVery GoodVery GoodVery Good-717
January 199799.7GoodVery GoodVery GoodExcellent-600
December 199499.7GoodVery GoodVery GoodExcellent-600
December 199299.7GoodVery GoodVery GoodExcellent-600
December 199099.7GoodVery GoodVery GoodExcellent-600