Bridge Type
Main Span(s): Concrete [1] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 18.2 m = 59.7 ft
Main Spans: 1 at 16.4 m = 53.8 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (4 Lanes) and Out-To-Out: 17 m = 55.8 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Northville [59000]: Wayne County [163], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
NORTHVILLE T W/NORTHV RD
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 29.8 metric ton = 32.8 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 17.2 metric ton = 18.9 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
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 the assessed or calculated scour condition. [8]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 9326 (1997) and Trucks: 5%
Future ADT: 12000 (In 2015
)