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Bridge Statistics for Leighton, Iowa (IA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 14Number of bridges
  • 108ft / 33.3mTotal length
  • 3,785Total average daily traffic
  • 420Total average daily truck traffic
  • 3,785Total future (year 2038) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Leighton
  • No street view available for this location

New bridges in Leighton, IA - historical statistics
  • New bridges - historical statistics
  • 11900-1909
  • 21940-1949
  • 51950-1959
  • 31970-1979
  • 11990-1999
  • 12000-2009
  • 12010-2019
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 9.1%Very good
  • 9.1%Good
  • 9.1%Satisfactory
  • 27.3%Fair
  • 27.3%Poor
  • 18.2%Failed
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 9.1%Very good
  • 18.2%Good
  • 36.4%Satisfactory
  • 9.1%Fair
  • 9.1%Poor
  • 18.2%Failed
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 9.1%Very good
  • 9.1%Good
  • 27.3%Satisfactory
  • 27.3%Poor
  • 9.1%Serious
  • 18.2%Failed
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 14.3%Very good
  • 28.6%Good
  • 57.1%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Very good
  • 66.7%Good
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Structure Number: 23649,  Location: 075160703 (Lat: 41.314183,  Lng: -92.739039),  Route carried "on" structure: County highway ,  Year Built: 1951,  Status: Posted for load,  Structure Length: 3.75m (12.30ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Design Load: H 15,  Features Intersected: MUCHAKINOCH CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.019,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.3m (46.9ft),  Curb-To-Curb Width: 6.6m (21.7ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 26.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 18.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $200,000,  Roadway Improvement Cost: $30,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 236671,  Location: 075170102 (Lat: 41.330350,  Lng: -92.775033),  Route carried "on" structure: County highway ,  Year Built: 2016,  Status: Open,  Structure Length: 3.75m (12.30ft),  Average Daily Traffic: 90 (year 2018),  Average Future Daily Traffic: 90 (year 2038),  Design Load: HL 93,  Features Intersected: MUCHAKINOCK CREEK,  Facility Carried by Structure: ELBA AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.699,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.3m (46.9ft),  Curb or Sidewalk Widths: Left: 0.4m (1.3ft),  Right: 0.4m (1.3ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 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 48 months,  Inspection Date: December 2018,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 236711,  Location: 075171406 (Lat: 41.295583,  Lng: -92.793975),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 0.61m (2.00ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2041),  Design Load: HS 20,  Features Intersected: ST JOSEPH CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.668,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 23673,  Location: 075171504 (Lat: 41.301983,  Lng: -92.813189),  Route carried "on" structure: County highway ,  Year Built: 1951,  Status: Closed,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 20 (year 2018),  Average Future Daily Traffic: 20 (year 2039),  Design Load: H 15,  Features Intersected: ST JOSEPH CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.735,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.1m (33.1ft),  Curb-To-Curb Width: 5.4m (17.7ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Satisfactory,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present minimum criteria,  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: 4.50m (14.76ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2019,  Bridge Improvement Cost: $81,000,  Roadway Improvement Cost: $8,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 236751,  Location: 075172406 (Lat: 41.281958,  Lng: -92.765875),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 160 (year 2018),  Average Future Daily Traffic: 160 (year 2040),  Design Load: HS 20,  Features Intersected: ST JOSEPH CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.850,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 2375,  Location: 076161903 (Lat: 41.365956,  Lng: -92.742158),  Route carried "on" structure: County highway ,  Year Built: 1956,  Status: Posted for load,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2040),  Design Load: H 15,  Features Intersected: DRAINAGE,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.378,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 6.4m (21.0ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Poor,  Channel: Good,  Operating Rating: 24.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $72,000,  Roadway Improvement Cost: $7,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 23751,  Location: 076162004 (Lat: 41.371508,  Lng: -92.737606),  Route carried "on" structure: County highway ,  Year Built: 1900,  Status: Closed,  Structure Length: 0.88m (2.89ft),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.025,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 4.3m (14.1ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 4.9m (16.1ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Satisfactory,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 4.90m (16.08ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2019,  Bridge Improvement Cost: $40,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 237601,  Location: 076171206 (Lat: 41.398106,  Lng: -92.761064),  Route carried "on" structure: County highway ,  Year Built: 1977,  Status: Open,  Structure Length: 13.75m (45.11ft),  Average Daily Traffic: 120 (year 2018),  Average Future Daily Traffic: 120 (year 2041),  Design Load: H 20,  Features Intersected: S SKUNK RIVER,  Facility Carried by Structure: FM T-43
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.584,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 29.9m (98.1ft),  Curb-To-Curb Width: 9.2m (30.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 47.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 45.10m (147.97ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 23764,  Location: 076172704 (Lat: 41.356750,  Lng: -92.813664),  Route carried "on" structure: County highway ,  Year Built: 1957,  Status: Posted for load-capacity,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 100 (year 2018),  Average Future Daily Traffic: 100 (year 2040),  Design Load: H 15,  Features Intersected: MUCHAKINOCK CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.457,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.1m (43.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Poor,  Superstructure: Good,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 15.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 7.9 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 6.70m (21.98ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $60,000,  Roadway Improvement Cost: $5,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 23765,  Location: 076172706 (Lat: 41.350842,  Lng: -92.813606),  Route carried "on" structure: County highway ,  Year Built: 1957,  Status: Posted for load,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 100 (year 2018),  Average Future Daily Traffic: 100 (year 2041),  Design Load: H 15,  Features Intersected: DRAINAGE,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.800,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 26.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 5.20m (17.06ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $50,000,  Roadway Improvement Cost: $5,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 237661,  Location: 076172801 (Lat: 41.364358,  Lng: -92.829497),  Route carried "on" structure: County highway ,  Year Built: 1973,  Status: Open,  Structure Length: 2.35m (7.71ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 15,  Features Intersected: MUCHAKINOCK CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.452,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 8.8m (28.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 37.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 22.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 7.70m (25.26ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 23767,  Location: 076172804 (Lat: 41.350069,  Lng: -92.832956),  Route carried "on" structure: County highway ,  Year Built: 1949,  Status: Posted for load,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 15,  Features Intersected: DRAINAGE,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.648,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.1m (33.1ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 3.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  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: 5.60m (18.37ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $50,000,  Roadway Improvement Cost: $5,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 502,  Location: 076173518 (Lat: 41.335767,  Lng: -92.787544),  Route carried "on" structure: County highway ,  Year Built: 1949,  Status: Posted for load,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 230 (year 2018),  Average Future Daily Traffic: 230 (year 2041),  Design Load: H 15,  Features Intersected: MUCHAKINOCK CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.066,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.5m (41.0ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 33.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 21.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 6.50m (21.33ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $117,000,  Roadway Improvement Cost: $12,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 60388,  Location: 3.7 mi. E of Jct. SR T25 (Lat: 41.303850,  Lng: -92.815275),  Route carried "on" structure: State highway 92,  Year Built: 1979,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 2,800 (year 2020),  Truck Traffic: 15%,  Average Future Daily Traffic: 2,800 (year 2040),  Design Load: HS 20,  Features Intersected: ST JOSEPHS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 274.120,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 79.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 47.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020
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