M STREET, N.W. over PARKWAY & ROCK CREEK
Map
Coordinates:
+38.90526, -77.0558638°54'19" N, 77°03'21" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | M STREET, N.W. over PARKWAY & ROCK CREEK |
Structure number: | 0035 |
Location: | M ST. OVER PARKWAY N.W. |
Purpose: | Carries highway and pedestrian walkway over highway and waterway |
Route classification: | Other Principal Arterial (Urban) [14] |
Length of largest span: | 78.1 ft. [23.8 m] |
Total length: | 232.0 ft. [70.7 m] |
Roadway width between curbs: | 40.0 ft. [12.2 m] |
Deck width edge-to-edge: | 59.1 ft. [18.0 m] |
Vertical clearance below bridge: | 13.1 ft. [4.0 m] |
Skew angle: | 25° |
Owner: | State Highway Agency [01] |
Year built: | 1928 |
Year reconstructed: | 1999 |
Historic significance: | Bridge is possibly eligible for the National Register of Historic Places [3] |
Design load: | MS 18 / HS 20 [5] |
Number of main spans: | 3 |
Main spans material: | Steel [3] |
Main spans design: | Stringer/Multi-beam or girder [02] |
Deck type: | Concrete Cast-in-Place [1] |
Wearing surface: | Monolithic Concrete (concurrently placed with structural deck) [1] |
Latest Available Inspection: July 2018
Good/Fair/Poor Condition: | Good |
Status: | Open, no restriction [A] |
Average daily traffic: | 10,800 [as of 2007] |
Truck traffic: | 1% of total traffic |
Deck condition: | Good [7 out of 9] |
Superstructure condition: | Very Good [8 out of 9] |
Substructure condition: | Good [7 out of 9] |
Structural appraisal: | Better than present minimum criteria [7] |
Deck geometry appraisal: | Meets minimum tolerable limits to be left in place as is [4] |
Underclearances 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: | 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] |
Pier/abutment protection: | Navigation protection not required [1] |
Scour condition: | Bridge foundations determined to be stable for assessed or calculated scour condition. [5] |
Sufficiency rating: | 81.0 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
July 2018 | Good | Good | Very Good | Good | 10800 | 81.0 |
September 2016 | Good | Good | Very Good | Good | 10800 | 81.0 |
September 2014 | Good | Good | Very Good | Good | 10800 | 79.0 |
September 2012 | Fair | Satisfactory | Good | Satisfactory | 10800 | 79.0 |
October 2010 | Fair | Satisfactory | Good | Good | 10800 | 79.0 |
October 2008 | Good | Good | Very Good | Good | 10800 | 79.0 |
October 2006 | Good | Very Good | Very Good | Good | 22300 | 79.0 |
October 2004 | Good | Good | Very Good | Good | 22300 | 79.0 |
December 2003 | Good | Good | Very Good | Good | 22300 | 79.0 |
December 2002 | Good | Very Good | Very Good | Good | 22300 | 79.0 |
January 2001 | Good | Excellent | Very Good | Very Good | 22300 | 79.0 |
May 1999 | Good | Excellent | Very Good | Very Good | 22300 | 59.2 |
May 1994 | Poor | Serious | Serious | Poor | 22300 | 29.1 |
February 1992 | Poor | Serious | Serious | Poor | 22300 | 29.1 |
March 1990 | Poor | Serious | Poor | Poor | 22300 | 46.1 |
Element Data
Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Element | Units | Quantity | 1-Good | 2-Fair | 3-Poor | 4-Serious |
---|
Superstructure |
Steel Girder/Beam | linear ft. | 1,392 | 1,392 | 0 | 0 | 0 |
Steel Protective Coating | sq. ft. | 16,400 | 16,400 | 0 | 0 | 0 |
Deck |
Reinforced Concrete Deck | sq. ft. | 14,220 | 14,036 | 180 | 4 | 0 |
Substructure |
Reinforced Concrete Pier Wall | linear ft. | 141 | 132 | 1 | 8 | 0 |
Reinforced Concrete Abutment | linear ft. | 141 | 120 | 21 | 0 | 0 |
Reinforced Concrete Pier Cap | linear ft. | 141 | 141 | 0 | 0 | 0 |
Joints |
Compression Joint | linear ft. | 141 | 0 | 141 | 0 | 0 |
Bearings |
Movable Bearing | each | 18 | 17 | 1 | 0 | 0 |
Steel Protective Coating | sq. ft. | 25 | 25 | 0 | 0 | 0 |
Fixed Bearing | each | 6 | 6 | 0 | 0 | 0 |
Steel Protective Coating | sq. ft. | 25 | 24 | 1 | 0 | 0 |
Bridge Rail |
Steel or Aluminum Bridge Rail | linear ft. | 470 | 468 | 2 | 0 | 0 |
Steel Protective Coating | sq. ft. | 1,723 | 1,723 | 0 | 0 | 0 |
Reinforced Concrete Bridge Rail | linear ft. | 470 | 470 | 0 | 0 | 0 |