Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 16.8 m = 55.1 ft
Main Spans: 1 at 15.8 m = 51.8 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.2 m = 13.8 ft (1 Lanes) and Out-To-Out: 4.3 m = 14.1 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
St. Mary [65034]: Ste. Genevieve County [186], Missouri [29]
Owned by County Highway Agency [02], DOT District: 7
S 1862 T 37 N R 10 E
Condition
Deck: Excellent [9]
Superstructure: Serious [3]
Substructure: Poor [4]
Loading
Design: MS 18 / HS 20 [5]
Operating: 6.3 metric ton = 6.9 tons (Allowable Stress(AS) [2])
Inventory: 3.6 metric ton = 4.0 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: February 2020 [0220] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 10 (2020) and Trucks: 20%
Future ADT: 14 (In 2040
)
