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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 32.6 m = 107.0 ft
Main Spans: 3 at 12.6 m = 41.3 ft
Approach Spans: 0
Skew: 9
Width, Roadway: 32 m = 105.0 ft (6 Lanes) and Out-To-Out: 33.8 m = 110.9 ft for a 33.2 m = 108.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Flint [29020]: Genesee County [049], Michigan [26]
Owned by State Highway Agency [01], DOT District: 4
N OF M-21
Condition
Deck: Fair [5]
Superstructure: Serious [3]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.8 metric ton = 85.6 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 46.3 metric ton = 50.9 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: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 2020 [0620] and Frequency: 10
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 70414 (2007) and Trucks: 10%
Future ADT: 100051 (In 2018
)