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Nearby Bridges in NBI 2021: 1


THORNAPPLE RIVER D over THORNAPPLE RIVER (Route: 2001)
Num:5070x
Open: no restriction [A]
Built: 2004, Reconstructed: N/A [0000]
Historic: Bridge is on the NRHP. [1]

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Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box Beam or girders - Single or Spread [06]
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: 51.4 m = 168.6 ft
Main Spans: 2 at 25.7 m = 84.3 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.4 m = 40.7 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
Cascade [13660]: Kent County [081], Michigan [26]
Owned by County Highway Agency [02], DOT District: 3
0.55 MI N OF LARAWAY LAKE
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 89.3 metric ton = 98.2 tons (Load Factor(LF) [1])
Inventory: 41.5 metric ton = 45.7 tons (Load Factor(LF) [1])
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 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: November 1999 [1199] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 12600 (2005) and Trucks: 3%
Future ADT: 21600 (In 2025 )

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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