Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Box Beam or girders - Single or Spread [06]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 94.6 m = 310.4 ft
Main Spans: 3 at 24.7 m = 81.0 ft
Approach Spans: 2
Skew: 5
Width, Roadway: 12.2 m = 40.0 ft (3 Lanes) and Out-To-Out: 16.2 m = 53.2 ft for a 12.5 m = 41.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Vassar [81840]: Tuscola County [157], Michigan [26]
Owned by State Highway Agency [01], DOT District: 4
IN VASSAR
Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: Greater than HL93 [B]
Operating: 45.7 metric ton = 50.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 35.3 metric ton = 38.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: November 1999 [1199] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 14550 (2013) and Trucks: 2%
Future ADT: 16900 (In 2033
)
