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Nearby Bridges in NBI 2021: 3


LA1264 over INTER COASTAL WATERWAY (Route: 1264)
Num:23630019900211x
Posted for load [P]
Built: 1975, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Concrete [1] Mixed types [20]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 591.9 m = 1942.0 ft
Main Spans: 1 at 30.5 m = 100.1 ft
Approach Spans: 36
Skew: 0
Width, Roadway: 17.4 m = 57.1 ft (4 Lanes) and Out-To-Out: 20.9 m = 68.6 ft for a 17.4 m = 57.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 14 m = 45.9 ft
Location
New Orleans [55000]: Orleans Parish [071], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
0.5 MI.W.OF DOWMAN R
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 22.7 metric ton = 25.0 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 17.5 metric ton = 19.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 1110 (2016) and Trucks: 11%
Future ADT: 1921 (In 2036 )
LA1264 over ON-RAMP TO SEABROOK BR. (Route: 1264)
Num:23630019900215x
Open: no restriction [A]
Built: 1975, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Concrete [1] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 264 m = 866.2 ft
Main Spans: 14 at 24.7 m = 81.0 ft
Approach Spans: 9
Skew: 15
Width, Roadway: 6.2 m = 20.3 ft (1 Lanes) and Out-To-Out: 7.7 m = 25.3 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
New Orleans [55000]: Orleans Parish [071], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
.65 MI. W. OF DOWNMAN RD.
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 39.9 metric ton = 43.9 tons (Allowable Stress(AS) [2])
Inventory: 32.7 metric ton = 36.0 tons (Allowable Stress(AS) [2])
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: Better than present minimum criteria [7]
Waterway: N/A [N] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: March 1999 [399] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 111 (2016) and Trucks: 11%
Future ADT: 192 (In 2036 )
CITY STREET over CITY STREET (Route: 0)
Num:23630020900161x
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): Concrete [1] Slab [01]
Deck: Other [9] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 657.8 m = 2158.2 ft
Main Spans: 25 at 25 m = 82.0 ft
Approach Spans: 12
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.2 m = 43.3 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
New Orleans [55000]: Orleans Parish [071], Louisiana [22]
Owned by Other Local Agencies [25], DOT District: 2
U3630020900161
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 34.7 metric ton = 38.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 26.6 metric ton = 29.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: May 1999 [599] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 0 (2016) and Trucks: 0%
Future ADT: 0 (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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