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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 50.8 m = 166.7 ft
Main Spans: 3 at 24 m = 78.7 ft
Approach Spans: 0
Skew: 10
Width, Roadway: 14.9 m = 48.9 ft (4 Lanes) and Out-To-Out: 22.3 m = 73.2 ft for a 14.9 m = 48.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Ann Arbor [03000]: Washtenaw County [161], Michigan [26]
Owned by City or Municipal Highway Agency [04], DOT District: 6
0.5 MI E OF MAIN STREET
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 81.6 metric ton = 89.8 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 48.9 metric ton = 53.8 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: October 1999 [1099] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 20630 (2015) and Trucks: 2%
Future ADT: 21773 (In 2035
)
