Bridge Type
Main Span(s): Steel [3] 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: 128.3 m = 421.0 ft
Main Spans: 6 at 23.4 m = 76.8 ft
Approach Spans: 0
Skew: 38
Width, Roadway: 9.7 m = 31.8 ft (2 Lanes) and Out-To-Out: 10.9 m = 35.8 ft for a 10.3 m = 33.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Walker [82960]: Kent County [081], Michigan [26]
Owned by State Highway Agency [01], DOT District: 3
IN WALKER
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 62.5 metric ton = 68.8 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 37.6 metric ton = 41.4 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 2020 [0620] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 18528 (2007) and Trucks: 7%
Future ADT: 31438 (In 2018
)