NFA 1256 (SA 4716) over KNOB FORK CREEK


+36.02556, -83.99083
36°01'32" N, 83°59'27" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:NFA 1256 (SA 4716) over KNOB FORK CREEK
Structure number:47S24100005
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:22.6 ft. [6.9 m]
Total length:69.9 ft. [21.3 m]
Roadway width between curbs:51.8 ft. [15.8 m]
Deck width edge-to-edge:59.4 ft. [18.1 m]
Skew angle:45°
Owner:City or Municipal Highway Agency [04]
Year built:2006
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:Bituminous [6]

Latest Available Inspection: June 2014 

Status:Open, no restriction [A]
Average daily traffic:8,130 [as of 2015]
Truck traffic:3% of total traffic
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry 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: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]
Culvert condition:No noticeable or noteworthy deficiencies which affect the condition of the culvert. Insignificant scrape marks caused by drift. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:97.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201497.0Not deficient---8130
June 201297.0Not deficient---8130
June 201097.0Not deficient---8130
June 200897.0Not deficient---8130
August 200797.0Not deficient---8130
June 200627.5Structurally deficient---8080
May 200426.7Structurally deficient---8640
May 200227.8Structurally deficient---7850
April 200025.2Structurally deficient---9720
July 199827.8Structurally deficient---7840
January 199626.9Structurally deficient---8500
September 199329.7Structurally deficient---6400
October 199130.0Structurally deficient---6200