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: Bituminous [6]
Bridge Dimensions
Length: 14.4 m = 47.2 ft
Main Spans: 1 at 12.6 m = 41.3 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (2 Lanes) and Out-To-Out: 8.8 m = 28.9 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Burtchville [12020]: St. Clair County [147], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
SEC. 6 BURTCHVILLE TWP.
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 18 / H 20 [4]
Operating: 41.1 metric ton = 45.2 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 24.6 metric ton = 27.1 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 197 (1994) and Trucks: 15%
Future ADT: 360 (In 2014
)