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: Latex Concrete or similar additive [3]
Bridge Dimensions
Length: 60.9 m = 199.8 ft
Main Spans: 4 at 15.2 m = 49.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.5 m = 41.0 ft (2 Lanes) and Out-To-Out: 15 m = 49.2 ft for a 14.6 m = 47.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Grand Haven [33340]: Ottawa County [139], Michigan [26]
Owned by State Highway Agency [01], DOT District: 3
IN GRAND HAVEN (N 7TH ST)
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 78.1 metric ton = 85.9 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 46.7 metric ton = 51.4 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: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 31096 (2007) and Trucks: 3%
Future ADT: 36772 (In 2018
)