Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 59.7 m = 195.9 ft
Main Spans: 3 at 19.6 m = 64.3 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9 m = 29.5 ft (2 Lanes) and Out-To-Out: 11.1 m = 36.4 ft for a 8 m = 26.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Harrison [36820]: Macomb County [099], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
0.4MI W OF CROCKER BLVD
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 79.1 metric ton = 87.0 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 47.3 metric ton = 52.0 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
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: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 2020 [0520] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 10900 (2012) and Trucks: 5%
Future ADT: 16197 (In 2032
)
