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: 9.1 m = 29.9 ft
Main Spans: 1 at 8.2 m = 26.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.1 m = 20.0 ft (2 Lanes) and Out-To-Out: 6.1 m = 20.0 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Metamora [53360]: Lapeer County [087], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
SEC. 1 METAMORA TWP.
Condition
Deck: Fair [5]
Superstructure: Serious [3]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 10 metric ton = 11.0 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 5.8 metric ton = 6.4 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: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: March 2020 [0320] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 155 (2008) and Trucks: 0%
Future ADT: 344 (In 2035
)