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Nearby Bridges in NBI 2021: 1


M-100 over GRAND RIVER (Route: 100)
Num:2286x
Open: no restriction [A]
Built: 1989, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

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: Epoxy Overlay [5]
Bridge Dimensions
Length: 163.1 m = 535.1 ft
Main Spans: 5 at 32.6 m = 107.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 14.6 m = 47.9 ft (4 Lanes) and Out-To-Out: 20.1 m = 65.9 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 Ledge [33420]: Eaton County [045], Michigan [26]
Owned by State Highway Agency [01], DOT District: 6
IN GRAND LEDGE
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 88.7 metric ton = 97.6 tons (Load Factor(LF) [1])
Inventory: 38.4 metric ton = 42.2 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed: Bridge deck replacement with only incidental widening. [37]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 13838 (2007) and Trucks: 4%
Future ADT: 15073 (In 2018 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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