Bridge Type
Main Span(s): Aluminum: Wrought Iron or Cast Iron [9] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface:
Bridge Dimensions
Length: 21.5 m = 70.5 ft
Main Spans: 1 at 20.7 m = 67.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 3.7 m = 12.1 ft (1 Lanes) and Out-To-Out: 4.1 m = 13.5 ft for a 4.9 m = 16.1 ft approaching roadway.
Vertical Clearance: 3.35 m = 11.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Frederick County [021], Maryland [24]
Owned by County Highway Agency [02], DOT District: 7
0.87 MI S of MD 77
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 29 metric ton = 31.9 tons (Load Factor(LF) [1])
Inventory: 17.2 metric ton = 18.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: October 2020 [1020] and Frequency: 12
Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 327 (2020) and Trucks: 2%
Future ADT: 486 (In 2040
)
