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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 63.7 m = 209.0 ft
Main Spans: 3 at 31.1 m = 102.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 17 m = 55.8 ft (4 Lanes) and Out-To-Out: 22.3 m = 73.2 ft for a 17 m = 55.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Bay City [06020]: Bay County [017], Michigan [26]
Owned by City or Municipal Highway Agency [04], DOT District: 4
IN BAY CITY
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 81 metric ton = 89.1 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 48.6 metric ton = 53.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: October 2020 [1020] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 25340 (2004) and Trucks: 4%
Future ADT: 45766 (In 2024
)