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Nearby Bridges in NBI 2021: 2


US 212 over YELLOWSTONE RIVER (Route: 212)
Num:P00004053+05141x
Open: no restriction [A]
Built: 1997, 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 continuous [4] 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: 156.3 m = 512.8 ft
Main Spans: 5 at 50.6 m = 166.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 19.3 m = 63.3 ft (4 Lanes) and Out-To-Out: 22 m = 72.2 ft for a 19 m = 62.3 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Yellowstone County [111], Montana [30]
Owned by State Highway Agency [01], DOT District: 5
1M S LAUREL
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 38.1 metric ton = 41.9 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 29.9 metric ton = 32.9 tons (Load and Resistance Factor(LRFR) [3])
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: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 10594 (2019) and Trucks: 4%
Future ADT: 12024 (In 2039 )
BERNHARDT RD over DRAINAGE DITCH 191 (Route: 56069)
Num:M56069000+00701x
Open: no restriction [A]
Built: 1980, 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] Tee beam [04]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 10.7 m = 35.1 ft
Main Spans: 1 at 10.1 m = 33.1 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 8.4 m = 27.6 ft (2 Lanes) and Out-To-Out: 8.5 m = 27.9 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Laurel [42700]: Yellowstone County [111], Montana [30]
Owned by County Highway Agency [02], DOT District: 5
LAUREL-BERNHARDT RD
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 32.7 metric ton = 36.0 tons (Unknown [A])
Inventory: 32.7 metric ton = 36.0 tons (Unknown [A])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: January 2021 [0121] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 119 (2019) and Trucks: 0%
Future ADT: 125 (In 2039 )

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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