SD020 over VALLEY CK
Map
Coordinates:
+45.54934, -103.9544445°32'58" N, 103°57'16" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | SD020 over VALLEY CK |
Structure number: | 000000032051277 |
Location: | 5.0 E MONTANA STATE LINE |
Purpose: | Carries highway over waterway |
Route classification: | Major Collector (Rural) [07] |
Length of largest span: | 39.0 ft. [11.9 m] |
Total length: | 162.4 ft. [49.5 m] |
Roadway width between curbs: | 24.0 ft. [7.3 m] |
Deck width edge-to-edge: | 27.2 ft. [8.3 m] |
Skew angle: | 30° |
Owner: | State Highway Agency [01] |
Year built: | 1950 |
Historic significance: | Bridge is not eligible for the National Register of Historic Places [5] |
Design load: | M 13.5 / H 15 [2] |
Number of main spans: | 4 |
Main spans material: | Steel [3] |
Main spans design: | Stringer/Multi-beam or girder [02] |
Deck type: | Concrete Cast-in-Place [1] |
Wearing surface: | Low slump Concrete [4] |
Latest Available Inspection: May 2017
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 122 [as of 2017] |
Truck traffic: | 14% of total traffic |
Deck condition: | Fair [5 out of 9] |
Superstructure condition: | Satisfactory [6 out of 9] |
Substructure condition: | Good [7 out of 9] |
Structural appraisal: | Equal to present minimum criteria [6] |
Deck geometry appraisal: | Somewhat better than minimum adequacy to tolerate being left in place as is [5] |
Water adequacy appraisal: | Equal to present desirable criteria [8] |
Roadway alignment appraisal: | Better than present minimum criteria [7] |
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] |
Scour condition: | Bridge foundations determined to be stable for assessed or calculated scour condition. [5] |
Sufficiency rating: | 79.2 |
Recommended work: | Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31] |
Estimated cost of work: | $627,000 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
May 2017 | Fair | Fair | Satisfactory | Good | 122 | 79.2 |
May 2015 | Fair | Fair | Satisfactory | Good | 122 | 79.2 |
May 2013 | Fair | Fair | Satisfactory | Good | 120 | 79.2 |
May 2011 | Poor | Serious | Satisfactory | Satisfactory | 235 | 77.0 |
May 2009 | Poor | Serious | Satisfactory | Satisfactory | 233 | 77.0 |
April 2007 | Poor | Serious | Satisfactory | Satisfactory | 210 | 77.3 |
May 2005 | Fair | Good | Satisfactory | Good | 210 | 82.4 |
May 2003 | Poor | Serious | Satisfactory | Good | 240 | 77.3 |
September 2001 | Poor | Serious | Satisfactory | Good | 179 | 77.9 |
October 1999 | Poor | Serious | Satisfactory | Good | 188 | 77.8 |
October 1997 | Poor | Poor | Very Good | Good | 220 | 79.6 |
October 1995 | Poor | Poor | Very Good | Good | 180 | 79.4 |
October 1993 | Fair | Satisfactory | Very Good | Good | 192 | 87.7 |
January 1992 | Good | Very Good | Very Good | Good | 110 | 87.8 |