Arkansas Hwy 177 over Norfork Dam Spillway
Map
Coordinates:
+36.24833, -92.2377836°14'54" N, 92°14'16" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | Arkansas Hwy 177 over Norfork Dam Spillway |
Structure number: | AHTD000000M3875 |
Location: | 13 MI SE of Mountain Home |
Purpose: | Carries highway over relief for waterway |
Route classification: | Major Collector (Rural) [07] |
Length of largest span: | 47.6 ft. [14.5 m] |
Total length: | 575.8 ft. [175.5 m] |
Roadway width between curbs: | 25.6 ft. [7.8 m] |
Deck width edge-to-edge: | 42.0 ft. [12.8 m] |
Owner: | Corps of Engineers (Civil) [70] |
Year built: | 1944 |
Year reconstructed: | 2008 |
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: | 12 |
Main spans material: | Concrete [1] |
Main spans design: | Slab [01] |
Deck type: | Concrete Cast-in-Place [1] |
Wearing surface: | Latex Concrete or similar additive [3] |
Latest Available Inspection: August 2017
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 1,800 [as of 2016] |
Deck condition: | Good [7 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: | Superior to present desirable criteria [9] |
Roadway alignment appraisal: | Equal to present desirable criteria [8] |
Channel protection: | There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9] |
Scour condition: | Bridge foundations determined to be stable for the assessed or calculated scour condition. [8] |
Sufficiency rating: | 67.1 |
Recommended work: | Other structural work, including hydraulic replacements. [38] |
Estimated cost of work: | $825,000 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
August 2017 | Fair | Good | Satisfactory | Fair | 1800 | 67.1 |
August 2015 | Fair | Good | Satisfactory | Fair | 200 | 78.0 |
July 2013 | Fair | Good | Satisfactory | Fair | 2000 | 66.3 |
August 2011 | Fair | Very Good | Satisfactory | Fair | 2000 | 66.3 |
July 2009 | Good | Very Good | Good | Good | 2000 | 78.8 |
August 2003 | Fair | Fair | Good | Good | 1500 | 79.2 |
August 2001 | Fair | Fair | Good | Good | 1400 | 79.5 |
July 1999 | Fair | Fair | Good | Good | 2200 | 74.9 |
July 1997 | Good | Good | Very Good | Very Good | 2100 | 76.3 |
July 1995 | Good | Good | Very Good | Very Good | 2010 | 76.6 |
July 1993 | Good | Good | Very Good | Very Good | 1910 | 79.1 |