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Bridge Statistics for Lewiston, Idaho (ID) - Condition, Traffic, Stress, Structural Evaluation, Project Costs

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National Bridge Inventory (NBI) Statistics
Number of bridges: 15
Total length: 317 meters (1,040ft)
Total costs: $119,871,000
Total average daily traffic: 153,050
Total average daily truck traffic: 15,602
National Bridge Inventory (NBI) Registered Bridges for Lewiston
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New bridges - Historical Statistics

  • 1930-1939: 2
  • 1940-1949: 0
  • 1950-1959: 1
  • 1960-1969: 0
  • 1970-1979: 6
  • 1980-1989: 3
  • 1990-1999: 3

Average Daily Traffic

Average Truck Traffic (%)

Bridge Condition - Deck

Bridge Condition - Superstructure

Bridge Condition - Substructure

Bridge Condition - Channel

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Structure Number: 1036,  Location: IN LEWISTON AT STATE LINE (Lat: 46.420000,  Lng: -117.033333),  Route carried "on" structure: US 12,  Year Built: 1939,  Status: Open,  Structure Length: 43.40m (142.39ft),  Average Daily Traffic: 21,000 (year 2010),  Truck Traffic: 9%,  Average Future Daily Traffic: 31,472 (year 2027),  Design Load: H 15,  Features Intersected: US 12;SNAKE RIVER
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: US0,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Navigation Control: Yes ( Vertical Clearance: 12.8m (42.0ft), Horizontal Clearance: 48.8m (160.1ft)),  Material/Design: Steel,  Design/Construction: Movable - Lift,  Number Of Spans In Main Unit: 3,  Number Of Approach Spans: 14,  Length of Maximum Span: 61.0m (200.1ft),  Curb or Sidewalk Widths: Left: 2.0m (6.6ft),  Right: 0.0m,  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 14.7m (48.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 41.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 25.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Underclear: High priority of replacement,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: High priority of corrective action,  Length Of Structure Improvement: 44.93m (147.41ft),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Other Special Inspection Frequency: Every 24 months,  Inspection Date: September 11,  Critical Feature Inspection Date: September 11,  Underwater Inspection Date: September 11,  Other Special Inspection Date: September 11,  Bridge Improvement Cost: $40,093,000,  Roadway Improvement Cost: $8,019,000,  Total Project Cost: $80,186,000 ( Estimate for 2010),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 10375,  Location: IN LEWISTON (Lat: 46.416944,  Lng: -117.000000),  Route carried "on" structure: US 12,  Year Built: 1951,  Status: Open,  Structure Length: 42.89m (140.72ft),  Average Daily Traffic: 23,000 (year 2010),  Truck Traffic: 9%,  Average Future Daily Traffic: 34,500 (year 2030),  Design Load: HS 15,  Features Intersected: CLEARWATER RIVER;BNRR
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.122,  Lanes on structure: 4,  Base Highway Network: Yes (Inventory Route: US0,  Subroute: 2),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 20 degrees,  Navigation Control: Yes ( Vertical Clearance: 4.0m (13.1ft), Horizontal Clearance: 32.0m (105.0ft)),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 12,  Length of Maximum Span: 34.1m (111.9ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 18.9m (62.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 40.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Underclear: High priority of replacement,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 42.89m (140.72ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: Febuary 11,  Underwater Inspection Date: September 2007,  Bridge Improvement Cost: $6,416,000,  Roadway Improvement Cost: $642,000,  Total Project Cost: $9,624,000 ( Estimate for 2005),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1052,  Location: AT LEWISTON NCL (Lat: 46.430000,  Lng: -116.994444),  Route carried "on" structure: Ramp US 95,  Year Built: 1977,  Status: Open,  Structure Length: 11.58m (37.99ft),  Average Daily Traffic: 750 (year 2010),  Truck Traffic: 45%,  Average Future Daily Traffic: 1,125 (year 2030),  Design Load: HS 20,  Features Intersected: US 95R SBL;LEWISTON IC
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.270,  Lanes on structure: 2,  Lanes under structure: 3,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 43.3m (142.1ft),  Curb-To-Curb Width: 11.8m (38.7ft),  Out-to-Out Width: 12.7m (41.7ft)

Condition: Deck: Satisfactory,  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: Superior to present desirable criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 10,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 18805,  Location: AT LEWISTON NCL (Lat: 46.430278,  Lng: -116.994167),  Route carried "on" structure: Ramp US 95,  Year Built: 1977,  Status: Open,  Structure Length: 6.07m (19.91ft),  Average Daily Traffic: 750 (year 2010),  Truck Traffic: 45%,  Average Future Daily Traffic: 1,125 (year 2030),  Design Load: HS 20,  Features Intersected: US 12 NB-WB;LEWISTON IC
Minimum Vertical Clearance: 5.26m (17.26ft),  Kilometerpoint: 502.467,  Lanes on structure: 1,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: US0,  Subroute: 8),  Owner: State Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 29.6m (97.1ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 59.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.1 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: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 10,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 21195,  Location: IN LEWISTON (Lat: 46.394722,  Lng: -117.037778),  Route carried "on" structure: Ramp City street ,  Year Built: 1982,  Status: Open,  Structure Length: 16.76m (54.99ft),  Average Daily Traffic: 5,550 (year 2010),  Truck Traffic: 10%,  Average Future Daily Traffic: 8,325 (year 2030),  Design Load: HS 20+Mod,  Features Intersected: RAMP;SNAKE RIVER;HIGH BR,  Facility Carried by Structure: SNAKE RVR AVE RAMP
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.183,  Lanes on structure: 1,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 40.8m (133.9ft),  Curb or Sidewalk Widths: Left: 2.0m (6.6ft),  Right: 0.0m,  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 11.3m (37.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 45.4 metric tons,  Inventory Rating: 32.7 metric tons,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 10,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 21291,  Location: IN LEWISTON (Lat: 46.418333,  Lng: -116.988333),  Route carried "on" structure: City street 7124,  Year Built: 1997,  Status: Open,  Structure Length: 1.55m (5.09ft),  Average Daily Traffic: 12,500 (year 2010),  Truck Traffic: 19%,  Average Future Daily Traffic: 18,750 (year 2030),  Features Intersected: LINDSAY CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.959,  Lanes on structure: 4,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 2.7m (8.9ft),  Curb or Sidewalk Widths: Left: 1.7m (5.6ft),  Right: 1.7m (5.6ft),  Curb-To-Curb Width: 14.8m (48.6ft),  Out-to-Out Width: 18.3m (60.0ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 45.0 metric tons,  Inventory Rating: 32.4 metric tons,  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: 2.29m (7.51ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 11,  Bridge Improvement Cost: $767,000,  Roadway Improvement Cost: $77,000,  Total Project Cost: $1,151,000 ( Estimate for 2009)
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Structure Number: 2147,  Location: IN LEWISTON;GUN CLUB RD. (Lat: 46.410833,  Lng: -116.977222),  Route carried "on" structure: City street 7334,  Year Built: 1971,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 4,500 (year 2010),  Truck Traffic: 2%,  Average Future Daily Traffic: 6,750 (year 2030),  Design Load: HS 20,  Features Intersected: LINDSAY CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.101,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.4m (21.0ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 21.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.34m (4.40ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: September 11,  Bridge Improvement Cost: $184,000,  Roadway Improvement Cost: $18,000,  Total Project Cost: $276,000 ( Estimate for 2004),  Deck Structure Type: Corrugated Steel,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 2149,  Location: IN LEWISTON (Lat: 46.392222,  Lng: -117.025000),  Route carried "on" structure: City street 7134,  Year Built: 1999,  Status: Open,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 5,000 (year 2010),  Truck Traffic: 5%,  Average Future Daily Traffic: 7,500 (year 2030),  Design Load: HS 25,  Features Intersected: BRYDEN CANYON ROAD
Minimum Vertical Clearance: 5.49m (18.01ft),  Kilometerpoint: 161.043,  Lanes on structure: 4,  Lanes under structure: 4,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 17.7m (58.1ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 39.3m (128.9ft),  Curb or Sidewalk Widths: Left: 2.0m (6.6ft),  Right: 2.0m (6.6ft),  Curb-To-Curb Width: 17.8m (58.4ft),  Out-to-Out Width: 22.3m (73.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 56.7 metric tons,  Inventory Rating: 40.5 metric tons,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 11,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Other Coated Reinforcing
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Structure Number: 21495,  Location: IN LEWISTON;BRYDEN EXT (Lat: 46.396667,  Lng: -117.043056),  Route carried "on" structure: City street ,  Year Built: 1982,  Status: Open,  Structure Length: 56.88m (186.61ft),  Average Daily Traffic: 24,000 (year 2010),  Truck Traffic: 6%,  Average Future Daily Traffic: 36,000 (year 2030),  Design Load: HS 20,  Features Intersected: SNAKE RIVER;HIGH BRIDGE,  Facility Carried by Structure: BRYDEN CANYON ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 16.4m (53.8ft),  Skew: 20 degrees,  Navigation Control: Yes ( Vertical Clearance: 19.0m (62.3ft), Horizontal Clearance: 76.0m (249.3ft)),  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 185.9m (609.9ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 16.4m (53.8ft),  Out-to-Out Width: 21.3m (69.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Poor,  Channel: Very good,  Operating Rating: 45.0 metric tons,  Inventory Rating: 32.4 metric tons,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 56.88m (186.61ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 24 months,  Inspection Date: September 10,  Underwater Inspection Date: August 11,  Bridge Improvement Cost: $19,089,000,  Roadway Improvement Cost: $1,909,000,  Total Project Cost: $28,634,000 ( Estimate for 2009),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 1036,  Location: IN LEWISTON AT STATE LINE (Lat: 46.420000,  Lng: -117.033333),  Route carried "under" structure: US 12,  Year Built: 1939,  Structure Length: 43.40m (142.39ft),  Average Daily Traffic: 5,800 (year 2010),  Truck Traffic: 12%,  Features Intersected: US 12;SNAKE RIVER
Minimum Vertical Clearance: 4.93m (16.17ft),  Kilometerpoint: 0.647,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Movable - Lift,  Length of Maximum Span: 61.0m (200.1ft)

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Structure Number: 1052,  Location: AT LEWISTON NCL (Lat: 46.430000,  Lng: -116.994444),  Route carried "under" structure: Ramp US 95,  Year Built: 1977,  Structure Length: 11.58m (37.99ft),  Average Daily Traffic: 6,000 (year 2010),  Truck Traffic: 26%,  Features Intersected: US 95R SBL;LEWISTON IC
Minimum Vertical Clearance: 5.26m (17.26ft),  Kilometerpoint: 502.504,  Lanes on structure: 2,  Lanes under structure: 1,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 43.3m (142.1ft)

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Structure Number: 1052,  Location: AT LEWISTON NCL (Lat: 46.430000,  Lng: -116.994444),  Route carried "under" structure: US 12,  Year Built: 1977,  Structure Length: 11.58m (37.99ft),  Average Daily Traffic: 5,200 (year 2011),  Truck Traffic: 6%,  Features Intersected: US 95R SBL;LEWISTON IC,  Facility Carried by Structure: US 95 RAMP NBL
Minimum Vertical Clearance: 5.36m (17.59ft),  Kilometerpoint: 4.965,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 43.3m (142.1ft)

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Structure Number: 18805,  Location: AT LEWISTON NCL (Lat: 46.430278,  Lng: -116.994167),  Route carried "under" structure: Ramp US 12,  Year Built: 1977,  Structure Length: 6.07m (19.91ft),  Average Daily Traffic: 7,000 (year 2010),  Truck Traffic: 7%,  Features Intersected: US 12 NB-WB;LEWISTON IC,  Facility Carried by Structure: US 95RAMP SB
Minimum Vertical Clearance: 5.36m (17.59ft),  Kilometerpoint: 4.965,  Lanes on structure: 1,  Lanes under structure: 2,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 29.6m (97.1ft)

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Structure Number: 2149,  Location: IN LEWISTON (Lat: 46.392222,  Lng: -117.025000),  Route carried "under" structure: City street 7344,  Year Built: 1999,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 16,500 (year 2010),  Truck Traffic: 10%,  Features Intersected: BRYDEN CANYON ROAD,  Facility Carried by Structure: SMA 7134;8TH ST.
Minimum Vertical Clearance: 6.34m (20.80ft),  Kilometerpoint: 1.374,  Lanes on structure: 4,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 39.3m (128.9ft)

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Structure Number: 21495,  Location: IN LEWISTON;BRYDEN EXT (Lat: 46.396667,  Lng: -117.043056),  Route carried "under" structure: City street 7014,  Year Built: 1982,  Structure Length: 56.88m (186.61ft),  Average Daily Traffic: 15,500 (year 2010),  Truck Traffic: 10%,  Features Intersected: SNAKE RIVER;HIGH BRIDGE,  Facility Carried by Structure: BRYDEN CANYON ROAD
Minimum Vertical Clearance: 7.62m (25.00ft),  Kilometerpoint: 3.008,  Lanes on structure: 4,  Lanes under structure: 2,  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Single/Spread,  Length of Maximum Span: 185.9m (609.9ft)

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