Bridge Type
Main Span(s): Wood or timber [7] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 86.2 m = 282.8 ft
Main Spans: 3 at 28.3 m = 92.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4 m = 13.1 ft (2 Lanes) and Out-To-Out: 4.9 m = 16.1 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 4.01 m = 13.2 ft and Navigational Clearance: 0 = N/A
Location
Lockport [49060]: St. Joseph County [149], Michigan [26]
Owned by County Highway Agency [02], DOT District: 5
3 MI NORTH OF CENTREVILLE
Condition
Deck: Satisfactory [6]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design:
Operating: 12.6 metric ton = 13.9 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Inventory: 7.5 metric ton = 8.3 tons (Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading [7])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: November 2020 [1120] and Frequency: 12
Future Work
Work Needed: Replacement of bridge or other structure because of relocation of road. [32]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 1723 (2003) and Trucks: 1%
Future ADT: 2641 (In 2023
)
