Bridge Type
Main Span(s): Steel [3] Movable - Swing [17]
Approach Span(s): Wood or timber [7] Stringer/Multi-beam or girder [02]
Deck: Wood or Timber [8] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 48.2 m = 158.1 ft
Main Spans: 1 at 19.5 m = 64.0 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 4.1 m = 13.5 ft (1 Lanes) and Out-To-Out: 4.9 m = 16.1 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 4.44 m = 14.6 ft and Navigational Clearance: 1.5 m = 4.9 ft
Location
Unknown [00000]: Terrebonne Parish [109], Louisiana [22]
Owned by County Highway Agency [02], DOT District: 2
0005 LOG MI FROM IN
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Poor [4]
Loading
Design: MS 18 / HS 20 [5]
Operating: 13.9 metric ton = 15.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 10.7 metric ton = 11.8 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
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: 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: 1.3 km = 0.8 mi
Traffic
ADT: 400 (1978) and Trucks: 0%
Future ADT: 496 (In 2036
)
