Route 646 NBL over IS 64
Map
Coordinates:
+37.35235, -76.7317737°21'08" N, 76°43'54" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | Route 646 NBL over IS 64 |
Structure number: | 000000000019877 |
Location: | 0.26 Mi To Int Rte 602 |
Purpose: | Carries highway over highway |
Route classification: | Major Collector (Rural) [07] |
Length of largest span: | 129.9 ft. [39.6 m] |
Total length: | 354.0 ft. [107.9 m] |
Roadway width between curbs: | 49.9 ft. [15.2 m] |
Deck width edge-to-edge: | 51.8 ft. [15.8 m] |
Vertical clearance below bridge: | 13.1 ft. [4.0 m] |
Skew angle: | 22° |
Owner: | State Highway Agency [01] |
Year built: | 1979 |
Historic significance: | Bridge is not eligible for the National Register of Historic Places [5] |
Design load: | MS 18+Mod / HS 20+Mod [6] |
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: | Epoxy Overlay [5] |
Latest Available Inspection: June 2018
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 12,448 [as of 2014] |
Truck traffic: | 1% 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: | Equal to present minimum criteria [6] |
Underclearances appraisal: | Somewhat better than minimum adequacy to tolerate being left in place as is [5] |
Roadway alignment appraisal: | Equal to present desirable criteria [8] |
Scour condition: | Bridge not over waterway. [N] |
Sufficiency rating: | 86.6 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
June 2018 | Fair | Satisfactory | Satisfactory | Fair | 12448 | 86.6 |
June 2016 | Fair | Satisfactory | Satisfactory | Satisfactory | 12448 | 97.8 |
June 2014 | Fair | Satisfactory | Satisfactory | Satisfactory | 4678 | 98.6 |
June 2012 | Fair | Satisfactory | Satisfactory | Satisfactory | 4678 | 98.6 |
July 2010 | Fair | Good | Satisfactory | Satisfactory | 4678 | 98.6 |
September 2008 | Fair | Good | Satisfactory | Satisfactory | 4678 | 98.6 |
August 2006 | Good | Good | Good | Good | 3975 | 98.6 |
July 2004 | Fair | Satisfactory | Good | Good | 3268 | 98.7 |
July 2002 | Fair | Satisfactory | Good | Good | 3103 | 98.7 |
July 2000 | Fair | Satisfactory | Good | Good | 4992 | 98.5 |
July 1998 | Fair | Satisfactory | Very Good | Good | 4992 | 98.5 |
May 1997 | Fair | Fair | Very Good | Good | 4853 | 97.5 |
June 1995 | Fair | Fair | Very Good | Good | 4853 | 97.6 |
June 1993 | Fair | Satisfactory | Satisfactory | Good | 4273 | 98.7 |
July 1991 | Fair | Very Good | Satisfactory | Good | 4083 | 99.7 |
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. | 2,124 | 1,909 | 215 | 0 | 0 |
Steel Protective Coating | sq. ft. | 20,000 | 19,475 | 0 | 0 | 525 |
Deck |
Reinforced Concrete Deck | sq. ft. | 18,408 | 18,296 | 112 | 0 | 0 |
Wearing Surfaces | sq. ft. | 18,408 | 17,066 | 0 | 0 | 1,342 |
Substructure |
Reinforced Concrete Column | each | 9 | 8 | 1 | 0 | 0 |
Reinforced Concrete Abutment | linear ft. | 114 | 79 | 35 | 0 | 0 |
Reinforced Concrete Pier Cap | linear ft. | 159 | 59 | 100 | 0 | 0 |
Joints |
Pourable Joint | linear ft. | 260 | 162 | 26 | 0 | 72 |
Bearings |
Movable Bearing | each | 24 | 0 | 24 | 0 | 0 |
Steel Protective Coating | sq. ft. | 24 | 0 | 0 | 0 | 24 |
Fixed Bearing | each | 24 | 0 | 24 | 0 | 0 |
Steel Protective Coating | sq. ft. | 24 | 0 | 0 | 0 | 24 |
Bridge Rail |
Reinforced Concrete Bridge Rail | linear ft. | 708 | 608 | 100 | 0 | 0 |