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Bridge Statistics for Pilot Knob, Missouri (MO)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 11Number of bridges
  • 62ft / 18.7mTotal length
  • $507,000Total costs
  • 16,000Total average daily traffic
  • 2,125Total average daily truck traffic
  • 23,340Total future (year 2041) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Pilot Knob
  • No street view available for this location

New bridges in Pilot Knob, MO - historical statistics
  • New bridges - historical statistics
  • 21920-1929
  • 11930-1939
  • 11950-1959
  • 41960-1969
  • 11990-1999
  • 12000-2009
  • 12010-2019
Average Bridge Daily Traffic in Pilot Knob, MO
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 16.7%Excellent
  • 33.3%Good
  • 33.3%Satisfactory
  • 16.7%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 16.7%Excellent
  • 16.7%Very good
  • 16.7%Good
  • 33.3%Satisfactory
  • 16.7%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 16.7%Excellent
  • 16.7%Very good
  • 50.0%Satisfactory
  • 16.7%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 10.0%Excellent
  • 20.0%Good
  • 40.0%Satisfactory
  • 20.0%Fair
  • 10.0%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 20.0%Satisfactory
  • 80.0%Fair
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Structure Number: 1089,  Location: S 14 T 34 N R 3 E (Lat: 37.650000,  Lng: -90.673475),  Route carried "on" structure: State highway 21,  Year Built: 1967,  Status: Open,  Structure Length: 0.99m (3.25ft),  Average Daily Traffic: 1,559 (year 2021),  Truck Traffic: 18%,  Average Future Daily Traffic: 2,339 (year 2041),  Design Load: H 20,  Features Intersected: MIDDLEBROOK CR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 130.378,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft),  Curb-To-Curb Width: 15.6m (51.2ft),  Out-to-Out Width: 16.2m (53.1ft)

Condition: Channel: Fair,  Culverts: Fair,  Operating Rating: 93.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 55.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  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: October 2021
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Structure Number: 109,  Location: S 10 T 48 N R 20 W (Lat: 38.953072,  Lng: -93.088308),  Route carried "on" structure: State highway J,  Year Built: 1961,  Status: Open,  Structure Length: 6.61m (21.69ft),  Average Daily Traffic: 554 (year 2021),  Truck Traffic: 11%,  Average Future Daily Traffic: 693 (year 2041),  Design Load: H 15,  Features Intersected: IS 70
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.726,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 18.6m (61.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  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: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 109,  Location: S 30 T 34 N R 4 E (Lat: 37.617825,  Lng: -90.642031),  Route carried "on" structure: State highway 21,  Year Built: 1967,  Status: Open,  Structure Length: 1.84m (6.04ft),  Average Daily Traffic: 5,758 (year 2021),  Truck Traffic: 18%,  Average Future Daily Traffic: 8,637 (year 2041),  Design Load: H 20,  Features Intersected: KNOB CR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 135.483,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.4m (11.2ft)

Condition: Channel: Good,  Culverts: Fair,  Operating Rating: 86.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 52.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: 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: October 2021
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Structure Number: 11872,  Location: S 19 T 34 N R 4 E (Lat: 37.617364,  Lng: -90.640733),  Route carried "on" structure: State highway 221,  Year Built: 2000,  Status: Open,  Structure Length: 1.55m (5.09ft),  Average Daily Traffic: 2,162 (year 2021),  Truck Traffic: 5%,  Average Future Daily Traffic: 3,243 (year 2041),  Design Load: HS 20,  Features Intersected: W BR OF KNOB CR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 26.158,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.9m (39.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.8m (15.7ft),  Curb-To-Curb Width: 19.3m (63.3ft),  Out-to-Out Width: 20.3m (66.6ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Inventory Rating: 76.5 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,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021
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Structure Number: 13685,  Location: S 30 T 34 N R 4 E (Lat: 37.623000,  Lng: -90.650100),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Posted for load,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 100 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 120 (year 2041),  Features Intersected: BR OF STOUTS CR,  Facility Carried by Structure: MULBERRY ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.322,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 6.9m (22.6ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Fair,  Operating Rating: 9.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 4.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 0.19m (0.62ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $138,000,  Roadway Improvement Cost: $14,000,  Total Project Cost: $206,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 18092,  Location: S 13 T 34 N R 3 E (Lat: 37.647917,  Lng: -90.665314),  Route carried "on" structure: County highway 173,  Year Built: 1922,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 350 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 420 (year 2041),  Features Intersected: CREEK,  Facility Carried by Structure: OLD HWY 21
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.322,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.2m (17.1ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 6.3m (20.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 49.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 16.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 0.17m (0.56ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $105,000,  Roadway Improvement Cost: $11,000,  Total Project Cost: $158,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 28374,  Location: S 3 T 34 N R 3 E (Lat: 37.673600,  Lng: -90.691400),  Route carried "on" structure: County highway 174,  Year Built: 1923,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 200 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 240 (year 2041),  Features Intersected: ST FRANCOIS RVR,  Facility Carried by Structure: COUNTY RD 96
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.966,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 6.4m (21.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Poor,  Operating Rating: 28.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 12.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 0.13m (0.43ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $95,000,  Roadway Improvement Cost: $10,000,  Total Project Cost: $143,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 32326,  Location: S 29 T 34 N R 4 E (Lat: 37.616711,  Lng: -90.637931),  Route carried "on" structure: City street 341,  Year Built: 1990,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 50 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 65 (year 2041),  Design Load: HS 20,  Features Intersected: KNOB BR,  Facility Carried by Structure: INDUSTRIAL DR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.161,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.2m (17.1ft),  Curb-To-Curb Width: 6.6m (21.7ft),  Out-to-Out Width: 6.8m (22.3ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Excellent,  Operating Rating: 50.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.7 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 36118,  Location: S 25 T 34 N R 3 E (Lat: 37.617800,  Lng: -90.654000),  Route carried "on" structure: County highway 47,  Year Built: 2019,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 35 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 42 (year 2041),  Design Load: HS 20,  Features Intersected: BR OF STROUTS CR,  Facility Carried by Structure: MORNING SIDE LN
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Skew: 5 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 4.8m (15.7ft),  Out-to-Out Width: 5.2m (17.1ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Channel: Satisfactory,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Superior to present desirable criteria,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 5681,  Location: S 13 T 34 N R 3 E (Lat: 37.652375,  Lng: -90.658603),  Route carried "on" structure: State highway N,  Year Built: 1932,  Status: Open,  Structure Length: 1.74m (5.71ft),  Average Daily Traffic: 3,070 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 4,298 (year 2041),  Design Load: H 15,  Features Intersected: INDIAN CR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.425,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Channel: Satisfactory,  Culverts: Fair,  Operating Rating: 86.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 52.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  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
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Structure Number: 7691,  Location: S 30 T 34 N R 4 E (Lat: 37.621192,  Lng: -90.636639),  Route carried "on" structure: State highway 221,  Year Built: 1954,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 2,162 (year 2021),  Truck Traffic: 5%,  Average Future Daily Traffic: 3,243 (year 2041),  Design Load: H 10,  Features Intersected: BR KNOB CR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.408,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft),  Curb-To-Curb Width: 11.5m (37.7ft),  Out-to-Out Width: 12.4m (40.7ft)

Condition: Channel: Satisfactory,  Culverts: Fair,  Operating Rating: 42.3 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: Somewhat better than minimum adequacy,  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: October 2021
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