Share:

I24 over I24 / SOUTHERN RAILWAY

Map 

Coordinates:
+35.02500, -85.30333
35°01'30" N, 85°18'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I24 over I24 / SOUTHERN RAILWAY
Structure number:33I00240029
Location:1 M E OF I124 JCT
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:122.1 ft. [37.2 m]
Total length:299.9 ft. [91.4 m]
Roadway width between curbs:141.1 ft. [43.0 m]
Deck width edge-to-edge:144.0 ft. [43.9 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:1990
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:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2014 

Status:Open, no restriction [A]
Average daily traffic:109,260 [as of 2014]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:50.5 tons [45.9 metric tons]
Inventory rating:30.7 tons [27.9 metric tons]
Sufficiency rating:73.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$9,784,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201473.9Not deficientSatisfactoryGoodGood109260
October 201274.9Not deficientSatisfactoryGoodGood116420
October 201074.9Not deficientSatisfactoryGoodGood104320
October 200873.9Not deficientFairSatisfactoryGood112170
October 200677.0Not deficientFairSatisfactoryGood116160
November 200477.0Not deficientFairSatisfactoryGood115510
July 200277.0Not deficientFairSatisfactoryGood113250
September 200077.0Not deficientFairSatisfactoryGood98700
August 199877.0Not deficientFairSatisfactoryGood105390
February 199778.0Not deficientSatisfactoryGoodGood101260
October 199478.0Not deficientGoodGoodVery Good93900
October 199278.0Not deficientGoodGoodVery Good67500
March 199161.7Structurally deficientSeriousSatisfactorySatisfactory67500