M-21 over PRAIRIE CREEK (Route: 21)
Num:4009x
Open: no restriction [A]
Built: 1929, 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): 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: 15.2 m = 49.9 ft
Main Spans: 1 at 15.2 m = 49.9 ft
Approach Spans: 0
Skew: 10
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.8 m = 45.3 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Ionia [40880]: Ionia County [067], Michigan [26]
Owned by State Highway Agency [01], DOT District: 3
2.6 MI E OF M-66

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 67.3 metric ton = 74.0 tons (Allowable Stress(AS) [2])
Inventory: 26.4 metric ton = 29.0 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: December 2020 [1220] 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: 8456 (2007) and Trucks: 5%
Future ADT: 8986 (In 2018 )

PRAIRIE CREEK ROAD over PRAIRIE CREEK (Route: 0)
Num:4067x
Open: no restriction [A]
Built: 2004, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
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: 20.1 m = 65.9 ft
Main Spans: 1 at 18.9 m = 62.0 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.6 m = 31.5 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Ionia [40880]: Ionia County [067], Michigan [26]
Owned by County Highway Agency [02], DOT District: 3
1.0 MILE EAST OF IONIA

Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 76.1 metric ton = 83.7 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 45.7 metric ton = 50.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])

Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Basically intolerable requiring high priority of corrrective action [3]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 2020 [1020] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 1 km = 0.6 mi
Traffic
ADT: 490 (2008) and Trucks: 2%
Future ADT: 570 (In 2028 )

EAST MAIN STREET over PRAIRIE CREEK (Route: 0)
Num:4065x
Open: no restriction [A]
Built: 1994, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
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: 28.7 m = 94.2 ft
Main Spans: 1 at 28.7 m = 94.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.4 m = 30.8 ft (2 Lanes) and Out-To-Out: 13.3 m = 43.6 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
Ionia [40880]: Ionia County [067], Michigan [26]
Owned by County Highway Agency [02], DOT District: 3
1.0 MILE EAST OF IONIA

Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 83.9 metric ton = 92.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 50.2 metric ton = 55.2 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])

Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 2020 [1020] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 805 (2008) and Trucks: 3%
Future ADT: 937 (In 2028 )