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: 15.2 m = 49.9 ft
Main Spans: 1 at 14.8 m = 48.6 ft
Approach Spans: 0
Skew: 20
Width, Roadway: 9.7 m = 31.8 ft (2 Lanes) and Out-To-Out: 10.6 m = 34.8 ft for a 9.9 m = 32.5 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Middlebury [53680]: Shiawassee County [155], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
3.4 M NW OF BENNINGTON
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: HL93 [A]
Operating: 81 metric ton = 89.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 62.5 metric ton = 68.8 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: Equal to present minimum criteria [6]
Road Alignment: Superior to present desirable criteria [9]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 649 (2011) and Trucks: 5%
Future ADT: 965 (In 2031
)