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


  • National Bridge Inventory (NBI) Statistics
  • 17Number of bridges
  • 207ft / 63.0mTotal length
  • 6,565Total average daily traffic
  • 453Total average daily truck traffic
  • 6,565Total future (year 2038) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Chelsea
  • No street view available for this location

New bridges in Chelsea, IA - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 11920-1929
  • 21950-1959
  • 41960-1969
  • 41970-1979
  • 31980-1989
  • 11990-1999
  • 12000-2009
Reconstructed bridges in Chelsea, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11960-1969
  • 01970-1979
  • 01980-1989
  • 01990-1999
  • 12000-2009
  • 12010-2019
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 15.4%Very good
  • 7.7%Good
  • 46.2%Fair
  • 15.4%Poor
  • 7.7%Serious
  • 7.7%Failed
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 7.7%Very good
  • 15.4%Good
  • 23.1%Satisfactory
  • 38.5%Fair
  • 7.7%Serious
  • 7.7%Failed
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 7.7%Very good
  • 15.4%Good
  • 38.5%Satisfactory
  • 7.7%Fair
  • 23.1%Poor
  • 7.7%Failed
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 5.9%Very good
  • 41.2%Good
  • 35.3%Satisfactory
  • 11.8%Fair
  • 5.9%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 50.0%Satisfactory
  • 50.0%Poor
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Structure Number: 1871,  Location: 082131701 (Lat: 41.920300,  Lng: -92.388369),  Route carried "on" structure: City street ,  Year Built: 1994,  Status: Open,  Structure Length: 5.36m (17.59ft),  Average Daily Traffic: 360 (year 2021),  Average Future Daily Traffic: 360 (year 2038),  Design Load: HS 20,  Features Intersected: OTTER CREEK,  Facility Carried by Structure: IRISH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.518,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 10.1m (33.1ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 86.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 51.8 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 17.60m (57.74ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  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: 1881,  Location: 082130804 (Lat: 41.921475,  Lng: -92.394606),  Route carried "on" structure: City street ,  Year Built: 2007,  Status: Open,  Structure Length: 5.18m (16.99ft),  Average Daily Traffic: 760 (year 2021),  Average Future Daily Traffic: 760 (year 2038),  Design Load: HS 20,  Features Intersected: OTTER CREEK,  Facility Carried by Structure: STATION STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.940,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 16.2m (53.1ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 15,  Length of Maximum Span: 14.6m (47.9ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 82.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 49.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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,  Length Of Structure Improvement: 16.90m (55.45ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  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: 1895,  Location: 082130803 (Lat: 41.925825,  Lng: -92.393056),  Route carried "on" structure: City street ,  Year Built: 1970,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 550 (year 2017),  Average Future Daily Traffic: 550 (year 2040),  Design Load: H 20,  Features Intersected: DRAINAGE,  Facility Carried by Structure: BANK ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.126,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Skew: 3 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: Satisfactory,  Operating Rating: 41.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 25.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 49731,  Location: 083143603 (Lat: 41.958589,  Lng: -92.428100),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 1,050 (year 2021),  Average Future Daily Traffic: 1,050 (year 2038),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: E66
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.332,  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: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  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 minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 3.20m (10.50ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2018,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 49741,  Location: 082131603 (Lat: 41.919642,  Lng: -92.361136),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 2.53m (8.30ft),  Average Daily Traffic: 650 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 650 (year 2040),  Design Load: HS 20,  Features Intersected: PLAGUE MINE CREEK,  Facility Carried by Structure: E66
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.858,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.4m (30.8ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 11.2m (36.7ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Good,  Channel: Good,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 8.30m (27.23ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 31652,  Location: 082130504 (Lat: 41.947861,  Lng: -92.385311),  Route carried "on" structure: County highway ,  Year Built: 1970,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 490 (year 2021),  Truck Traffic: 14%,  Average Future Daily Traffic: 490 (year 2040),  Design Load: H 20,  Features Intersected: PLAQUE MINE CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.921,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.7m (35.1ft),  Skew: 3 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: Satisfactory,  Culverts: Poor,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.60m (8.53ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 316541,  Location: 082130906 (Lat: 41.926625,  Lng: -92.365636),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 40 (year 2017),  Average Future Daily Traffic: 40 (year 2040),  Features Intersected: PLAQUE MINE CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.782,  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: 2,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 44.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 29.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 31658,  Location: 082131704 (Lat: 41.909056,  Lng: -92.394650),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Open,  Structure Length: 6.92m (22.70ft),  Average Daily Traffic: 800 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 800 (year 2040),  Design Load: H 20,  Features Intersected: IOWA RIVER OVERFLOW,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.884,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 26.8m (87.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Serious,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 39.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.3 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: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 22.70m (74.48ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 3166,  Location: 082132002 (Lat: 41.901094,  Lng: -92.394214),  Route carried "on" structure: County highway ,  Year Built: 1968,  Status: Posted for load-capacity,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 800 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 800 (year 2040),  Design Load: H 20,  Features Intersected: IOWA RIVER OVERFLOW,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.999,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 24.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 13.8 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: 0.1 - 9.9% below),  Length Of Structure Improvement: 3.20m (10.50ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 31661,  Location: 082132002 (Lat: 41.905383,  Lng: -92.394447),  Route carried "on" structure: County highway ,  Year Built: 1968,  Status: Open,  Structure Length: 15.39m (50.49ft),  Average Daily Traffic: 800 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 800 (year 2040),  Design Load: H 20,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.475,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Steel continuous,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 47.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 31.6 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,  Length Of Structure Improvement: 50.50m (165.68ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 31667,  Location: 082132703 (Lat: 41.882389,  Lng: -92.354492),  Route carried "on" structure: County highway ,  Year Built: 1950,  Year Reconstructed: 2012,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 10 (year 2021),  Average Future Daily Traffic: 10 (year 2040),  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.930,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.4m (21.0ft),  Curb-To-Curb Width: 6.0m (19.7ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 37.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $171,000,  Roadway Improvement Cost: $17,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 31674,  Location: 082141303 (Lat: 41.920161,  Lng: -92.433961),  Route carried "on" structure: County highway ,  Year Built: 1914,  Year Reconstructed: 1972,  Status: Closed,  Structure Length: 7.62m (25.00ft),  Average Daily Traffic: 40 (year 2021),  Average Future Daily Traffic: 40 (year 2038),  Features Intersected: IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 4.65m (15.26ft),  Kilometerpoint: 13.742,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 51.2m (168.0ft),  Curb-To-Curb Width: 4.5m (14.8ft),  Out-to-Out Width: 4.7m (15.4ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Fair,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Meets minimum limits,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 28.40m (93.18ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2018,  Bridge Improvement Cost: $809,000,  Roadway Improvement Cost: $81,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 31675,  Location: 082141407 (Lat: 41.907119,  Lng: -92.449256),  Route carried "on" structure: County highway ,  Year Built: 1920,  Year Reconstructed: 2018,  Status: Open,  Structure Length: 2.19m (7.19ft),  Average Daily Traffic: 35 (year 2017),  Average Future Daily Traffic: 35 (year 2040),  Design Load: H 15,  Features Intersected: RICHLAND CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 23.297,  Lanes on structure: 1,  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: 21.3m (69.9ft),  Curb-To-Curb Width: 5.8m (19.0ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 23.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $228,000,  Roadway Improvement Cost: $23,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 31676,  Location: 082141408 (Lat: 41.913064,  Lng: -92.435617),  Route carried "on" structure: County highway ,  Year Built: 1956,  Status: Posted for load,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 80 (year 2017),  Average Future Daily Traffic: 80 (year 2040),  Design Load: H 15,  Features Intersected: RICHLAND CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.766,  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: 17.7m (58.1ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 28.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 17.2 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: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 15.30m (50.20ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 31684,  Location: 082142302 (Lat: 41.905144,  Lng: -92.454636),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Posted for load,  Structure Length: 3.93m (12.89ft),  Average Daily Traffic: 45 (year 2017),  Average Future Daily Traffic: 45 (year 2040),  Design Load: H 15,  Features Intersected: RICHLAND CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.469,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.1m (43.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.8m (22.3ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 24.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 8.0 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: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 16.30m (53.48ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $464,000,  Roadway Improvement Cost: $46,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 317691,  Location: 083133406 (Lat: 41.953422,  Lng: -92.341464),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 25 (year 2017),  Average Future Daily Traffic: 25 (year 2040),  Design Load: H 20,  Features Intersected: BRANCH OF SALT CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.522,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 2.4m (7.9ft)

Condition: Channel: Poor,  Culverts: Poor,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 3.00m (9.84ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 362785,  Location: 082132104 (Lat: 41.904731,  Lng: -92.356383),  Route carried "on" structure: County highway ,  Year Built: 1986,  Status: Posted for load,  Structure Length: 1.62m (5.31ft),  Average Daily Traffic: 30 (year 2017),  Average Future Daily Traffic: 30 (year 2040),  Features Intersected: SMALL STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.111,  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: 13.1m (43.0ft),  Curb-To-Curb Width: 5.7m (18.7ft),  Out-to-Out Width: 5.7m (18.7ft)

Condition: Deck: Poor,  Superstructure: Serious,  Substructure: Poor,  Channel: Fair,  Operating Rating: 12.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 8.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to 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: 5.30m (17.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Open Grating,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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