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


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 571ft / 174mTotal length
  • $1,109,000Total costs
  • 118,500Total average daily traffic
  • 11,850Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Ama
  • No street view available for this location

New bridges in Ama, LA - historical statistics
  • New bridges - historical statistics
  • 21940-1949
  • 21950-1959
  • 12000-2009
  • 22010-2019
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 14.3%Very good
  • 42.9%Good
  • 42.9%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 28.6%Very good
  • 14.3%Good
  • 42.9%Satisfactory
  • 14.3%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 42.9%Very good
  • 14.3%Good
  • 14.3%Satisfactory
  • 28.6%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Very good
  • 40.0%Satisfactory
  • 40.0%Fair
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Structure Number: 24500000020431,  Location: 3.0 MILES EAST OF LA 632 (Lat: 29.916950,  Lng: -90.316900),  Route carried "on" structure: US 90,  Year Built: 2002,  Status: Open,  Structure Length: 10.79m (35.40ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: HS 20,  Features Intersected: DAVIS POND DIVERSION
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.435,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 5-09-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 31 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 18.0m (59.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.7m (44.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 79.1 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: 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: 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: September 2020,  Underwater Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 24500000020504,  Location: 4.9 MI. E. OF INT. WITH L (Lat: 29.916550,  Lng: -90.311669),  Route carried "on" structure: US 90,  Year Built: 2013,  Status: Open,  Structure Length: 77.42m (254.00ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: HS 20,  Features Intersected: US 90 TURNAROUNDS
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.886,  Lanes on structure: 2,  Lanes under structure: 1,  Base Highway Network: Yes (Inventory Route: 5-09-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 30 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 30,  Number Of Approach Spans: 22,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.2m (40.0ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 51.5 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: 39.9 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: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 24500000020505,  Location: 4.9 MI. E OF INT. WITH LA (Lat: 29.916239,  Lng: -90.304361),  Route carried "on" structure: US 90,  Year Built: 2013,  Status: Open,  Structure Length: 77.42m (254.00ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: HS 20,  Features Intersected: US 90 TURNAROUNDS
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.285,  Lanes on structure: 2,  Lanes under structure: 1,  Base Highway Network: Yes (Inventory Route: 5-09-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 30 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 30,  Number Of Approach Spans: 22,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.2m (40.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Operating Rating: 51.5 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: 39.9 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: Better than present minimum criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 24500050905861,  Location: 4.3 MI EAST OF LA 633 (Lat: 29.915681,  Lng: -90.296700),  Route carried "on" structure: US 90,  Year Built: 1953,  Status: Open,  Structure Length: 1.80m (5.91ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: HS 20,  Features Intersected: DRAIN CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.439,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 5-09-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 10 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  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: High priority of replacement,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 24500050905862,  Location: 4.3 MI EAST OF LA 633 (Lat: 29.915750,  Lng: -90.296500),  Route carried "on" structure: US 90,  Year Built: 1940,  Status: Open,  Structure Length: 1.74m (5.71ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: H 15,  Features Intersected: DRAIN CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.459,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 5-09-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 10 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 50.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.44m (8.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Bridge Improvement Cost: $208,000,  Total Project Cost: $312,000 ( Estimate for 2016),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 24500050907151,  Location: 5.6 MI EAST OF LA 633 (Lat: 29.914389,  Lng: -90.275300),  Route carried "on" structure: US 90,  Year Built: 1953,  Status: Open,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: HS 20,  Features Intersected: SELLERS CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.510,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 5-09-1,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 10 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 52.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  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: 3.14m (10.30ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2020,  Underwater Inspection Date: March 2019,  Bridge Improvement Cost: $267,000,  Total Project Cost: $400,000 ( Estimate for 2016),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 24500050907152,  Location: 5.6 MI EAST OF LA 633 (Lat: 29.914461,  Lng: -90.275000),  Route carried "on" structure: US 90,  Year Built: 1940,  Status: Open,  Structure Length: 2.35m (7.71ft),  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 23,664 (year 2036),  Design Load: H 15,  Features Intersected: SELLERS CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.385,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 5-09-2,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 30 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.6m (38.1ft),  Curb or Sidewalk Widths: Left: 1.1m (3.6ft),  Right: 0.0m,  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 48.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  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: 3.11m (10.20ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2021,  Underwater Inspection Date: March 2019,  Bridge Improvement Cost: $265,000,  Total Project Cost: $397,000 ( Estimate for 2016),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 24500000020504,  Location: 4.5 MI. E. OF INT WITH LA (Lat: 29.916669,  Lng: -90.312700),  Route carried "under" structure: US 90,  Structure Length: 0. m,  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Features Intersected: US 90 EB U-TURN TO US 90
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.886,  Lanes on structure: 2,  Lanes under structure: 1,  Length of Maximum Span: 0.0m

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Structure Number: 24500000020504,  Location: 4.9 MI E. OF INT. WITH LA (Lat: 29.916669,  Lng: -90.312700),  Route carried "under" structure: US 90,  Structure Length: 0. m,  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Features Intersected: US 90 WB U-TURN TO US 90
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.886,  Lanes on structure: 2,  Lanes under structure: 1,  Length of Maximum Span: 0.0m

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Structure Number: 24500000020505,  Location: 4.9 MI E OF INT WITH LA (Lat: 29.916669,  Lng: -90.312700),  Route carried "under" structure: US 90,  Structure Length: 0. m,  Average Daily Traffic: 11,850 (year 2016),  Truck Traffic: 10%,  Features Intersected: US 90 EB U-TURN TO US 90
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.285,  Lanes on structure: 2,  Lanes under structure: 1,  Length of Maximum Span: 0.0m

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