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Nearby Bridges in NBI 2021: 1


LA0006 over RED RIVER @ GRAND ECORE (Route: 6)
Num:83500340604021x
Open: no restriction [A]
Built: 1959, Reconstructed: 2011
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] 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: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 572.7 m = 1879.0 ft
Main Spans: 3 at 114.3 m = 375.0 ft
Approach Spans: 15
Skew: 0
Width, Roadway: 8.3 m = 27.2 ft (2 Lanes) and Out-To-Out: 9.3 m = 30.5 ft for a 14 m = 45.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 15.2 m = 49.9 ft
Location
Unknown [00000]: Natchitoches Parish [069], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 8
2.3 MI. N OF JCT 3175
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Poor [4]
Loading
Design: MS 18 / HS 20 [5]
Operating: 33 metric ton = 36.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 25.3 metric ton = 27.8 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: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: June 2020 [0620] and Frequency: 12
Future Work
Work Needed:
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 5000 (2016) and Trucks: 15%
Future ADT: 3960 (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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