US-12 (M/E TRI LVL over ACM TEST TRACK (Route: 12)
Num:10853x
Open: no restriction [A]
Built: 1942, Reconstructed: 2017
Historic: Bridge is on the NRHP. [1]

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: Monolithic Concrete (concurrently placed with structural deck) [1]

Bridge Dimensions
Length: 43.4 m = 142.4 ft
Main Spans: 3 at 15.8 m = 51.8 ft
Approach Spans: 0
Skew: 32
Width, Roadway: 21.5 m = 70.5 ft (4 Lanes) and Out-To-Out: 22.2 m = 72.8 ft for a 20.9 m = 68.6 ft approaching roadway.
Vertical Clearance: 4.27 m = 14.0 ft and Navigational Clearance: 0 = N/A

Location
Ypsilanti [89160]: Washtenaw County [161], Michigan [26]
Owned by State Highway Agency [01], DOT District: 6
0.5 MI W OF CO LINE

Condition
Deck: Very Good [8]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 73.5 metric ton = 80.9 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 44.1 metric ton = 48.5 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 23000 (1995) and Trucks: 5%
Future ADT: 29882 (In 2015 )

US-12 over CONRAIL: SERVICE ROAD (Route: 12)
Num:10845x
Open: no restriction [A]
Built: 1944, Reconstructed: 1995
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 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: Epoxy Overlay [5]

Bridge Dimensions
Length: 42.3 m = 138.8 ft
Main Spans: 3 at 17 m = 55.8 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 21.5 m = 70.5 ft (4 Lanes) and Out-To-Out: 22.5 m = 73.8 ft for a 18.2 m = 59.7 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Ypsilanti [89160]: Washtenaw County [161], Michigan [26]
Owned by State Highway Agency [01], DOT District: 6
0.9 MI W OF WAYNE CO LINE

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 73.9 metric ton = 81.3 tons (Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading [6])
Inventory: 44.1 metric ton = 48.5 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: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 11500 (2007) and Trucks: 5%
Future ADT: 15734 (In 2018 )