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Bridge Statistics for Gray, Louisiana (LA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 22Number of bridges
  • 928ft / 283mTotal length
  • $777,000Total costs
  • 179,848Total average daily traffic
  • 19,288Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Gray
  • No street view available for this location

New bridges in Gray, LA - historical statistics
  • New bridges - historical statistics
  • 21960-1969
  • 91980-1989
  • 21990-1999
  • 12010-2019
Average Bridge Daily Traffic in Gray, LA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 45.5%Good
  • 36.4%Satisfactory
  • 18.2%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 36.4%Good
  • 45.5%Satisfactory
  • 18.2%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 27.3%Good
  • 18.2%Satisfactory
  • 54.5%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 10.0%Very good
  • 80.0%Good
  • 10.0%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 66.7%Very good
  • 33.3%Good
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Structure Number: 2550000002,  Location: 2.0 MI S OF US 90 (Lat: 29.655419,  Lng: -90.766489),  Route carried "on" structure: State highway 660,  Year Built: 2019,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 7,300 (year 2018),  Average Future Daily Traffic: 7,600 (year 2039),  Design Load: Greater than HL93,  Features Intersected: BAYOU TERREBONNE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.048,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.6m (31.5ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 2.4m (7.9ft),  Curb-To-Curb Width: 9.6m (31.5ft),  Out-to-Out Width: 35.4m (116.1ft)

Condition: Channel: Good,  Culverts: Very good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 74.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020
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Structure Number: 2550000002042,  Location: ONE MILE EAST OF LA 24 (Lat: 29.680531,  Lng: -90.772900),  Route carried "on" structure: US 90,  Year Built: 1980,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 22,800 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 27,652 (year 2036),  Design Load: HS 20,  Features Intersected: DRAIN CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 28.313,  Lanes on structure: 4,  Base Highway Network: Yes (Inventory Route: 424-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 30 degrees,  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 2.4m (7.9ft),  Out-to-Out Width: 73.8m (242.1ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 74.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.80m (5.91ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Bridge Improvement Cost: $153,000,  Total Project Cost: $229,000 ( Estimate for 2016)
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Structure Number: 25500650405009,  Location: 0.01 M W OF LA 659 (Lat: 29.718661,  Lng: -90.797369),  Route carried "on" structure: Ramp State highway 24,  Year Built: 1990,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 258 (year 2015),  Average Future Daily Traffic: 319 (year 2036),  Design Load: HS 20,  Features Intersected: BAYOU TERREBONNE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.356,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.7m (44.9ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 2.4m (7.9ft),  Curb-To-Curb Width: 13.7m (44.9ft),  Out-to-Out Width: 30.5m (100.1ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 74.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020
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Structure Number: 25504240700051,  Location: .05 MI EAST OF LA 662 (Lat: 29.667881,  Lng: -91.047000),  Route carried "on" structure: US 90,  Year Built: 1998,  Status: Open,  Structure Length: 69.31m (227.40ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: LA662, BAYOU L'OURSE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.024,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 424-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 14 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 30,  Length of Maximum Span: 25.3m (83.0ft),  Curb-To-Curb Width: 12.3m (40.4ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240714861,  Location: 0.18 MI W OF LA 311 (Lat: 29.681689,  Lng: -90.814700),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 82.94m (272.11ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: LITTLE B BLACK/LA 311/SP
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 24.237,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 424-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 10 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 35,  Number Of Approach Spans: 10,  Length of Maximum Span: 23.8m (78.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 66.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240714862,  Location: 0.18 MI W OF LA 311 (Lat: 29.680939,  Lng: -90.806200),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 82.94m (272.11ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: LITTLE B BLACK/LA 311/SP
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.053,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 424-07-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 10 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 35,  Number Of Approach Spans: 10,  Length of Maximum Span: 23.2m (76.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 66.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240714905,  Location: 0.14 MI W OF LA 311 (Lat: 29.680789,  Lng: -90.814200),  Route carried "on" structure: Ramp US 90,  Year Built: 1987,  Status: Open,  Structure Length: 14.94m (49.02ft),  Average Daily Traffic: 2,280 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 2,765 (year 2036),  Design Load: HS 20,  Features Intersected: ONRAMP TO 90 FROM 311
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.256,  Lanes on structure: 1,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 8,  Number Of Approach Spans: 4,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 56.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240714928,  Location: 0.12 MI W OF LA 311 (Lat: 29.681839,  Lng: -90.812800),  Route carried "on" structure: Ramp US 90,  Year Built: 1987,  Status: Open,  Structure Length: 11.73m (38.48ft),  Average Daily Traffic: 2,280 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 2,765 (year 2036),  Design Load: HS 20,  Features Intersected: OFFRAMP FROM 90 TO 311
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.177,  Lanes on structure: 1,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 7,  Number Of Approach Spans: 3,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 56.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240715901,  Location: 1.00 MI E OF LA 311 (Lat: 29.679681,  Lng: -90.797600),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: DRAINAGE CANAL NO 1
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.915,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 424-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 12 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 7.6m (24.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 72.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: Febuary 2021,  Underwater Inspection Date: May 2019,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240715902,  Location: 1.0 MI E OF LA 311 (Lat: 29.679869,  Lng: -90.797200),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: DRAINAGE CANAL NO 1
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.170,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 424-07-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 12 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 7.6m (24.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 72.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: Febuary 2021,  Underwater Inspection Date: May 2019,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240716161,  Location: 1.30 MI E OF LA 311 (Lat: 29.679169,  Lng: -90.793200),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: DRAINAGE CANAL NO 2
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 26.340,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 424-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 12 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 7.6m (24.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 72.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25504240716162,  Location: 1.30 MI E OF LA 311 (Lat: 29.679389,  Lng: -90.793000),  Route carried "on" structure: US 90,  Year Built: 1987,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 11,400 (year 2016),  Truck Traffic: 18%,  Average Future Daily Traffic: 16,591 (year 2036),  Design Load: HS 20,  Features Intersected: DRAINAGE CANAL NO 2
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.763,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 424-07-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 12 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 7.6m (24.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 72.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: Febuary 2021,  Underwater Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 25529401904431,  Location: 0080 LOG MI FROM INT (Lat: 29.669069,  Lng: -90.738400),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Posted for load,  Structure Length: 2.32m (7.61ft),  Average Daily Traffic: 730 (year 1978),  Average Future Daily Traffic: 905 (year 2036),  Design Load: HS 20,  Features Intersected: ST LOUIS BAYOU,  Facility Carried by Structure: COUNTRY ESTATES DR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 23.3 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 18.1 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 3.08m (10.10ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: May 2021,  Underwater Inspection Date: September 2020,  Bridge Improvement Cost: $183,000,  Total Project Cost: $274,000 ( Estimate for 2016),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 25529405904671,  Location: 0003 LOG MI FROM IN (Lat: 29.675000,  Lng: -90.778300),  Route carried "on" structure: County highway ,  Year Built: 1963,  Status: Posted for load,  Structure Length: 2.32m (7.61ft),  Average Daily Traffic: 2,000 (year 1978),  Average Future Daily Traffic: 2,480 (year 2036),  Design Load: HS 20,  Features Intersected: TERREBONNE BAYOU,  Facility Carried by Structure: RESERVATION BR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 23.0 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 17.8 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 3.08m (10.10ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $183,000,  Total Project Cost: $274,000 ( Estimate for 2016),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 25504240714861,  Location: 4.2 miles S of LA 20 (Lat: 29.681400,  Lng: -90.811850),  Route carried "under" structure: State highway 311,  Structure Length: 0. m,  Average Daily Traffic: 2,100 (year 2014),  Features Intersected: LA 311 SB under US 90 EB
Minimum Vertical Clearance: 7.04m (23.10ft),  Kilometerpoint: 5.868,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240714861,  Location: 4.2 miles S of LA 20 (Lat: 29.681231,  Lng: -90.811711),  Route carried "under" structure: State highway 311,  Structure Length: 0. m,  Average Daily Traffic: 2,100 (year 2014),  Features Intersected: LA 311 NB under US 90 EB
Minimum Vertical Clearance: 7.04m (23.10ft),  Kilometerpoint: 4.701,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240714862,  Location: 4.2 miles S of LA 20 (Lat: 29.681511,  Lng: -90.811631),  Route carried "under" structure: State highway 311,  Structure Length: 0. m,  Average Daily Traffic: 2,100 (year 2014),  Features Intersected: LA 311 NB under US 90 WB
Minimum Vertical Clearance: 7.04m (23.10ft),  Kilometerpoint: 4.733,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240714862,  Location: 4.2 miles S of LA 20 (Lat: 29.681700,  Lng: -90.811769),  Route carried "under" structure: State highway 311,  Structure Length: 0. m,  Average Daily Traffic: 2,100 (year 2014),  Features Intersected: LA 311 SB under US 90 WB
Minimum Vertical Clearance: 7.04m (23.10ft),  Kilometerpoint: 5.832,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240716541,  Location: 1.2 miles S of LA 316 (Lat: 29.679569,  Lng: -90.783989),  Route carried "under" structure: State highway 24,  Structure Length: 0. m,  Average Daily Traffic: 13,500 (year 2014),  Features Intersected: LA 24 SB under US 90 EB
Minimum Vertical Clearance: 5.46m (17.91ft),  Kilometerpoint: 11.600,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240716541,  Location: 1.2 miles S of LA 316 (Lat: 29.679561,  Lng: -90.782769),  Route carried "under" structure: State highway 24,  Structure Length: 0. m,  Average Daily Traffic: 13,500 (year 2014),  Features Intersected: LA 24 NB under US 90 EB
Minimum Vertical Clearance: 5.46m (17.91ft),  Kilometerpoint: 11.758,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240716542,  Location: 1.2 miles S of LA 316 (Lat: 29.679800,  Lng: -90.782919),  Route carried "under" structure: State highway 24,  Structure Length: 0. m,  Average Daily Traffic: 13,500 (year 2014),  Features Intersected: LA 24 NB under US 90 WB
Minimum Vertical Clearance: 5.58m (18.31ft),  Kilometerpoint: 11.787,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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Structure Number: 25504240716542,  Location: 1.2 miles S of LA 316 (Lat: 29.679811,  Lng: -90.784111),  Route carried "under" structure: State highway 24,  Structure Length: 0. m,  Average Daily Traffic: 13,500 (year 2014),  Features Intersected: LA 24 SB under US 90 WB
Minimum Vertical Clearance: 5.21m (17.09ft),  Kilometerpoint: 11.571,  Lanes on structure: 2,  Lanes under structure: 2,  Length of Maximum Span: 0.0m

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