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


  • National Bridge Inventory (NBI) Statistics
  • 12Number of bridges
  • 302ft / 91.7mTotal length
  • 26,110Total average daily traffic
  • 5,148Total average daily truck traffic
  • 16,092Total future (year 2036) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Grayson
  • No street view available for this location

New bridges in Grayson, LA - historical statistics
  • New bridges - historical statistics
  • 11940-1949
  • 21970-1979
  • 51980-1989
  • 11990-1999
  • 32000-2009
Average Bridge Daily Traffic in Grayson, LA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 33.3%Very good
  • 55.6%Good
  • 11.1%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 33.3%Very good
  • 66.7%Good
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 55.6%Very good
  • 33.3%Good
  • 11.1%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 33.3%Very good
  • 41.7%Good
  • 8.3%Satisfactory
  • 16.7%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Very good
  • 66.7%Good
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Structure Number: 581100000580147,  Location: 2 MI. S FROM JCT LA 847 & (Lat: 32.196111,  Lng: -92.108100),  Route carried "on" structure: US 165,  Year Built: 2007,  Status: Open,  Structure Length: 66.14m (216.99ft),  Average Daily Traffic: 3,050 (year 2016),  Truck Traffic: 20%,  Average Future Daily Traffic: 3,660 (year 2036),  Design Load: HS 20,  Features Intersected: UNION PACIFIC R/R
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.566,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 15-07-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 30 degrees,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 22,  Length of Maximum Span: 38.1m (125.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 55.4 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: 37.6 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: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 581100000580163,  Location: 4.0 MILES SOUTH OF LA 4 & (Lat: 31.968431,  Lng: -92.168500),  Route carried "on" structure: US 165,  Year Built: 1945,  Status: Open,  Structure Length: 2.93m (9.61ft),  Average Daily Traffic: 5,300 (year 2016),  Truck Traffic: 20%,  Average Future Daily Traffic: 1,872 (year 2036),  Design Load: HS 15,  Features Intersected: BLACK BAYOU RELIEF
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 17.883,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 15-06-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 30 degrees,  Material/Design: Concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.8m (32.2ft),  Curb-To-Curb Width: 12.5m (41.0ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 32.7 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: 25.3 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 minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 581100150608691,  Location: 0.26 M S of LA 844 (Lat: 32.033561,  Lng: -92.123600),  Route carried "on" structure: US 165,  Year Built: 2004,  Status: Open,  Structure Length: 4.21m (13.81ft),  Average Daily Traffic: 5,300 (year 2016),  Truck Traffic: 20%,  Average Future Daily Traffic: 3,120 (year 2036),  Design Load: HS 20,  Features Intersected: HURRICANE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.816,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 15-06-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 7,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 49.6 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: 38.2 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581100150608692,  Location: 0.26 M S of LA 844 (Lat: 32.034019,  Lng: -92.123700),  Route carried "on" structure: US 165,  Year Built: 2004,  Status: Open,  Structure Length: 4.21m (13.81ft),  Average Daily Traffic: 5,300 (year 2016),  Truck Traffic: 20%,  Average Future Daily Traffic: 3,120 (year 2036),  Design Load: HS 20,  Features Intersected: HURRICANE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.469,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 15-06-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 7,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 49.6 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: 38.2 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: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581100410507901,  Location: .1 MI N OF LA 851 (Lat: 32.018900,  Lng: -92.086500),  Route carried "on" structure: State highway 126,  Year Built: 1999,  Status: Open,  Structure Length: 1.74m (5.71ft),  Average Daily Traffic: 370 (year 2016),  Truck Traffic: 21%,  Average Future Daily Traffic: 222 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.690,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 39.9 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 desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 581100410510011,  Location: 2.2 MI N OF LA 851 (Lat: 32.043931,  Lng: -92.103200),  Route carried "on" structure: State highway 126,  Year Built: 1982,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 370 (year 2016),  Truck Traffic: 21%,  Average Future Daily Traffic: 222 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.087,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 65.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581100410510381,  Location: 2.5 MI N OF LA 851 (Lat: 32.047811,  Lng: -92.105700),  Route carried "on" structure: State highway 126,  Year Built: 1982,  Status: Open,  Structure Length: 2.90m (9.51ft),  Average Daily Traffic: 1,930 (year 2016),  Truck Traffic: 21%,  Average Future Daily Traffic: 1,158 (year 2036),  Design Load: HS 20,  Features Intersected: HURRICANE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.666,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 65.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581100910913511,  Location: .25 MI WEST OF US 165 (Lat: 32.051269,  Lng: -92.112619),  Route carried "on" structure: State highway 126,  Year Built: 1971,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 2,800 (year 2016),  Truck Traffic: 21%,  Average Future Daily Traffic: 1,680 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.742,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.5m (41.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 1.8m (5.9ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 42.1 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: 32.4 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581108110206111,  Location: 6.1 MI NORTH OF LA 849 (Lat: 32.039019,  Lng: -92.111500),  Route carried "on" structure: State highway 850,  Year Built: 1982,  Status: Open,  Structure Length: 3.47m (11.38ft),  Average Daily Traffic: 530 (year 2016),  Truck Traffic: 11%,  Average Future Daily Traffic: 324 (year 2036),  Design Load: HS 20,  Features Intersected: HURRICANE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.782,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Fair,  Operating Rating: 46.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 27.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581108110602951,  Location: 1.95 MI E OF LA 850 (Lat: 31.990961,  Lng: -92.086200),  Route carried "on" structure: State highway 849,  Year Built: 1979,  Status: Open,  Structure Length: 2.32m (7.61ft),  Average Daily Traffic: 330 (year 2016),  Truck Traffic: 11%,  Average Future Daily Traffic: 198 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.712,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  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: 8.5m (27.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 38.6 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: 29.8 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: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 581108110700311,  Location: 0.30 M E of LA 126 (Lat: 31.996419,  Lng: -92.077600),  Route carried "on" structure: State highway 849,  Year Built: 1984,  Status: Open,  Structure Length: 0.88m (2.89ft),  Average Daily Traffic: 780 (year 2016),  Truck Traffic: 15%,  Average Future Daily Traffic: 486 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.499,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 1.5m (4.9ft)

Condition: Channel: Fair,  Culverts: Good,  Operating Rating: 42.1 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: 32.4 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2021
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Structure Number: 581132037920731,  Location: PH RD 113 (Lat: 32.061939,  Lng: -92.121031),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Open,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 50 (year 1988),  Average Future Daily Traffic: 30 (year 2036),  Design Load: HS 20,  Features Intersected: CREEK,  Facility Carried by Structure: Berry Rd
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft)

Condition: Channel: Satisfactory,  Culverts: Very good,  Operating Rating: 42.1 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: 32.4 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,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021
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