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GANNON ROAD over CONWAY-COHOCTAH/SPRAGUE

Map

Coordinates:
+42.74105, -83.97200
42°44'28" N, 83°58'19" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:GANNON ROAD over CONWAY-COHOCTAH/SPRAGUE
Structure number:000000000005849
Old structure number:47302H00007B010 (from 1992 edition)
Location:SEC 15 COHOCTAH TWP
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:29.9 ft. [9.1 m]
Total length:31.8 ft. [9.7 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:1994
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18 / HS 20 [5]
Main span material:Wood or timber [7]
Main span design:Slab [01]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:84 [as of 2013]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:97.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017GoodGoodGoodVery Good8497.0
October 2015GoodGoodGoodVery Good8497.0
October 2013GoodGoodGoodVery Good8697.0
October 2011GoodGoodGoodVery Good8697.0
August 2009GoodVery GoodVery GoodVery Good12097.0
September 2007GoodVery GoodVery GoodVery Good15097.0
August 2005GoodVery GoodGoodVery Good19297.0
September 2003GoodVery GoodVery GoodExcellent19297.0
July 1999GoodExcellentExcellentExcellent17697.0
June 1996GoodExcellentExcellentExcellent17697.0
December 1994GoodExcellentExcellentExcellent50096.9
June 1993GoodVery GoodVery GoodVery Good50095.8
May 1991PoorSeriousPoorPoor10515.7