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Nearby Bridges in NBI 2021: 1


LOCAL ROAD over GRAND CAILLOU BAYOU (Route: 0)
Num:25529230904301x
Posted for load [P]
Built: 1976, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Lift [15]
Approach Span(s): Concrete [1] Slab [01]
Deck: Open Grating [3] with Wearing Surface:
Bridge Dimensions
Length: 126.8 m = 416.0 ft
Main Spans: 1 at 23.2 m = 76.1 ft
Approach Spans: 17
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8.2 m = 26.9 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 4.88 m = 16.0 ft and Navigational Clearance: 24.4 m = 80.1 ft
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by County Highway Agency [02], DOT District: 2
0015 LOG MI FROM IN
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
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: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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 with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: June 1999 [699] 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: 1 km = 0.6 mi
Traffic
ADT: 300 (1972) and Trucks: 0%
Future ADT: 372 (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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