Share:

FAU 320 over MACKEY BRANCH

Map

Coordinates:
+35.00694, -85.15333
35°00'25" N, 85°09'12" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:FAU 320 over MACKEY BRANCH
Structure number:33S43070005
Location:1.81 MI. E OF I-75 JCT.
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:18.0 ft. [5.5 m]
Total length:58.1 ft. [17.7 m]
Roadway width between curbs:59.7 ft. [18.2 m]
Deck width edge-to-edge:68.9 ft. [21.0 m]
Owner:State Highway Agency [01]
Year built:1992
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:29,710 [as of 2015]
Truck traffic:3% of total traffic
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
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]
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]
Operating rating:78.2 tons [71.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:65.7
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$319,000

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
March 201765.7Good7 out of 10FO29710
February 201565.3Good7 out of 10FO30400
February 201366.7Fair6 out of 10FO29550
February 201167.0Fair6 out of 10FO28970
March 200967.2Fair6 out of 10FO28590
March 200766.7Fair6 out of 10FO29690
January 200566.7Good7 out of 10FO29570
February 200367.0Good7 out of 10FO29050
April 200167.6Good7 out of 10FO27730
March 199967.9Good7 out of 10-27180
April 199769.3Good7 out of 10-24230
April 199568.4Good9 out of 10-26130
April 199369.5Good9 out of 10-23880
May 199162.3GoodN out of 10FO20500