Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 375 m = 1230.4 ft
Main Spans: 35 at 13.4 m = 44.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 14.4 m = 47.2 ft (4 Lanes) and Out-To-Out: 16.7 m = 54.8 ft for a 14.3 m = 46.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Trenton [80420]: Wayne County [163], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
TRENTON E/FORT
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Serious [3]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 55.4 metric ton = 60.9 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 29.2 metric ton = 32.1 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: May 2020 [0520] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 11876 (1997) and Trucks: 8%
Future ADT: 14733 (In 2015
)