Mill Slough Road over Mill Slough


+28.31529, -81.38828
28°18'55" N, 81°23'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:Mill Slough Road over Mill Slough
Structure number:925002
Location:0.2 mile E of Michigan Av
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:9.8 ft. [3.0 m]
Total length:44.0 ft. [13.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1976
Year reconstructed:1993
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:4
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:11,381 [as of 2014]
Truck traffic:5% of total traffic
Structural appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Culvert condition:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:83.1

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
July 2018Good7 out of 101138183.1
July 2016Good7 out of 101138183.1
July 2014Good7 out of 101138183.1
July 2012Good7 out of 101138183.1
July 2010Good7 out of 101138182.1
July 2008Good7 out of 101138182.1
July 2006Good7 out of 101138182.1
July 2004Good7 out of 101138182.1
July 2002Fair6 out of 101138182.1
July 2000Fair6 out of 101123282.1
July 1998Good7 out of 10920280.4
July 1996Good8 out of 101400079.6
August 1994Good8 out of 101400096.9
May 1992Good7 out of 101400077.3