Bridge Type
Main Span(s): Concrete [1] Girder and floorbeam system [03]
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: 28.9 m = 94.8 ft
Main Spans: 1 at 27.4 m = 89.9 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 6.1 m = 20.0 ft (2 Lanes) and Out-To-Out: 8.2 m = 26.9 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Turner [80840]: Arenac County [011], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
0.2 MI S OF TWINING
Condition
Deck: Serious [3]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 92.3 metric ton = 101.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 60.9 metric ton = 67.0 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: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Better than present minimum criteria [7]
Waterway: Better than present minimum criteria [7] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 2020 [0820] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 145 (1998) and Trucks: 0%
Future ADT: 90 (In 1977
)