Bridge Type
Main Span(s): Prestressed concrete [5] 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: 112.2 m = 368.1 ft
Main Spans: 3 at 36.7 m = 120.4 ft
Approach Spans: 0
Skew: 4
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 14.4 m = 47.2 ft for a 10.4 m = 34.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Niles [57760]: Berrien County [021], Michigan [26]
Owned by State Highway Agency [01], DOT District: 5
IN CITY OF NILES
Condition
Deck: Very Good [8]
Superstructure: Satisfactory [6]
Substructure: Very Good [8]
Loading
Design: Greater than HL93 [B]
Operating: 60.6 metric ton = 66.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 34.7 metric ton = 38.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 9950 (2008) and Trucks: 3%
Future ADT: 10520 (In 2035
)