Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
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: 18.3 m = 60.0 ft
Main Spans: 1 at 17.9 m = 58.7 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.5 m = 31.2 ft (2 Lanes) and Out-To-Out: 10.5 m = 34.5 ft for a 7.9 m = 25.9 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
0.2 MI SOUTH OF HURON PT
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: Greater than HL93 [B]
Operating: 72.3 metric ton = 79.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 55.4 metric ton = 60.9 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 20 km = 12.4 mi
Traffic
ADT: 1843 (2016) and Trucks: 1%
Future ADT: 1942 (In 2036
)
