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Nearby Bridges in NBI 2021: 3


LA0182 over BAYOU BLACK (Route: 182)
Num:25500050400001x
Posted for load [P]
Built: 1946, 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] Girder and floorbeam system [03]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 57.6 m = 189.0 ft
Main Spans: 1 at 18.6 m = 61.0 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.6 m = 24.9 ft for a 10.7 m = 35.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 17.7 m = 58.1 ft
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
.01 MI EAST OF LA 20
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 13.5 / H 15 [2]
Operating: 26.3 metric ton = 28.9 tons (Load Factor(LF) [1])
Inventory: 13.6 metric ton = 15.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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 1999 [799] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 3.9 km = 2.4 mi
Traffic
ADT: 3100 (2016) and Trucks: 20%
Future ADT: 3720 (In 2036 )
US0090 over CHACAHOULA BAYOU (Route: 90)
Num:25504240703351x
Open: no restriction [A]
Built: 1998, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 614.8 m = 2017.2 ft
Main Spans: 27 at 23.2 m = 76.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.2 m = 43.3 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 7.93 m = 26.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
3.35 MI EAST OF LA 662
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 53.5 metric ton = 58.9 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 11400 (2016) and Trucks: 18%
Future ADT: 16591 (In 2036 )
US0090 over CHACAHOULA BAYOU (Route: 90)
Num:25504240703352x
Open: no restriction [A]
Built: 1998, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 625.5 m = 2052.3 ft
Main Spans: 27 at 23.2 m = 76.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.1 m = 43.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 7.93 m = 26.0 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
3.35 MI EAST OF LA 662
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: MS 18 / HS 20 [5]
Operating: 53.5 metric ton = 58.9 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present desirable criteria [8]
Deck Geometry: Better than present minimum criteria [7]
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: October 1999 [1099] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 11400 (2016) and Trucks: 18%
Future ADT: 16591 (In 2036 )

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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