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Nearby Bridges in NBI 2021: 2


CALHOUN RD over N BR OF TOBACCO R (Route: 2624)
Num:2900x
Open: no restriction [A]
Built: 1968, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 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: 19.2 m = 63.0 ft
Main Spans: 1 at 18.2 m = 59.7 ft
Approach Spans: 0
Skew: 40
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8.3 m = 27.2 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
Grout [35620]: Gladwin County [051], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
0.75 MI W OF M18
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 71.6 metric ton = 78.8 tons (Load Factor(LF) [1])
Inventory: 42.8 metric ton = 47.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: March 2020 [0320] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 440 (2000) and Trucks: 7%
Future ADT: 616 (In 2020 )
MCCULLOCH RD over N BR TOBACCO RIVER (Route: 0)
Num:2927x
Open: no restriction [A]
Built: 1991, 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 Precast Panels [2] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 18.3 m = 60.0 ft
Main Spans: 1 at 17 m = 55.8 ft
Approach Spans: 0
Skew: 42
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.5 m = 31.2 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
Grout [35620]: Gladwin County [051], Michigan [26]
Owned by County Highway Agency [02], DOT District: 4
70 RODS N OF CALHOUN RD
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 45.4 metric ton = 49.9 tons ()
Inventory: 34.9 metric ton = 38.4 tons ()
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: September 1999 [999] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 260 (2017) and Trucks: 3%
Future ADT: 270 (In 2037 )

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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