Sylvan Hill Road over Twittys Creek
Map
Coordinates:
+36.92838, -78.6616136°55'42" N, 78°39'42" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | Sylvan Hill Road over Twittys Creek |
Structure number: | 000000000004915 |
Location: | 0.12 TO 759 - 0.65 TO 612 |
Purpose: | Carries highway over waterway |
Route classification: | Minor Collector (Rural) [08] |
Length of largest span: | 61.4 ft. [18.7 m] |
Total length: | 64.6 ft. [19.7 m] |
Roadway width between curbs: | 23.3 ft. [7.1 m] |
Deck width edge-to-edge: | 27.2 ft. [8.3 m] |
Owner: | State Highway Agency [01] |
Year built: | 1960 |
Historic significance: | Bridge is not eligible for the National Register of Historic Places [5] |
Design load: | MS 13.5 / HS 15 [3] |
Main span material: | Steel [3] |
Main span design: | Stringer/Multi-beam or girder [02] |
Deck type: | Concrete Cast-in-Place [1] |
Latest Available Inspection: August 2018
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 371 [as of 2014] |
Truck traffic: | 3% of total traffic |
Deck condition: | Satisfactory [6 out of 9] |
Superstructure condition: | Satisfactory [6 out of 9] |
Substructure condition: | Fair [5 out of 9] |
Structural appraisal: | Somewhat better than minimum adequacy to tolerate being left in place as is [5] |
Deck geometry appraisal: | Meets minimum tolerable limits to be left in place as is [4] |
Water adequacy appraisal: | Equal to present minimum criteria [6] |
Roadway alignment appraisal: | Equal to present desirable criteria [8] |
Channel protection: | Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6] |
Scour condition: | Bridge foundations determined to be stable for assessed or calculated scour condition. [5] |
Sufficiency rating: | 74.2 |
Recommended work: | Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31] |
Estimated cost of work: | $678,000 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
August 2018 | Fair | Satisfactory | Satisfactory | Fair | 371 | 74.2 |
August 2016 | Fair | Satisfactory | Satisfactory | Fair | 371 | 76.7 |
August 2014 | Fair | Satisfactory | Satisfactory | Fair | 380 | 77.7 |
August 2012 | Fair | Satisfactory | Satisfactory | Fair | 380 | 77.7 |
August 2010 | Fair | Satisfactory | Satisfactory | Fair | 429 | 69.1 |
August 2008 | Fair | Satisfactory | Satisfactory | Fair | 429 | 69.1 |
October 2006 | Fair | Satisfactory | Satisfactory | Fair | 485 | 69.0 |
September 2004 | Fair | Satisfactory | Fair | Fair | 476 | 70.0 |
September 2002 | Fair | Satisfactory | Fair | Fair | 479 | 70.0 |
October 2000 | Fair | Satisfactory | Fair | Fair | 503 | 70.5 |
August 1998 | Fair | Fair | Fair | Fair | 503 | 64.5 |
October 1996 | Fair | Fair | Satisfactory | Fair | 600 | 64.5 |
September 1994 | Fair | Satisfactory | Satisfactory | Satisfactory | 600 | 75.5 |
August 1992 | Fair | Satisfactory | Satisfactory | Satisfactory | 362 | 74.5 |
August 1990 | Fair | Satisfactory | Satisfactory | Satisfactory | 520 | 73.5 |