Bridge Type
Main Span(s): Steel continuous [4] 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: 54.9 m = 180.1 ft
Main Spans: 3 at 18.3 m = 60.0 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 11.3 m = 37.1 ft (2 Lanes) and Out-To-Out: 12.1 m = 39.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Saint Clair [70700]: St. Clair County [147], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
PVT CLM 306 ST CLAIR TWP
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 97.2 metric ton = 106.9 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 82.6 metric ton = 90.9 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: 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 foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: January 2020 [0120] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 12110 (2005) and Trucks: 9%
Future ADT: 16954 (In 2023
)
