Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Open Grating [3] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 75.6 m = 248.0 ft
Main Spans: 2 at 27.7 m = 90.9 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 14 m = 45.9 ft (4 Lanes) and Out-To-Out: 21.3 m = 69.9 ft for a 28 m = 91.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 3 m = 9.8 ft
Location
Detroit [22000]: Wayne County [163], Michigan [26]
Owned by County Highway Agency [02], DOT District: 7
DET&RIVRRGEN/SCHAEFER
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 46 metric ton = 50.6 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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: June 2020 [0620] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 10938 (1999) and Trucks: 7%
Future ADT: 9442 (In 2015
)
