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: Bituminous [6]
Bridge Dimensions
Length: 50.3 m = 165.0 ft
Main Spans: 3 at 16.7 m = 54.8 ft
Approach Spans: 0
Skew: 10
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 14.1 m = 46.3 ft for a 12.3 m = 40.4 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Ross [69820]: Kalamazoo County [077], Michigan [26]
Owned by State Highway Agency [01], DOT District: 5
0.1 MI W OF 37 TH STREET
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 67.4 metric ton = 74.1 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 42.1 metric ton = 46.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed: Bridge deck replacement with only incidental widening. [37]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 5044 (2007) and Trucks: 5%
Future ADT: 7311 (In 2018
)