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

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Structure Number: 27161,  Location: 088192804 (Lat: 42.404481,  Lng: -93.062178),  Route carried "on" structure: County highway ,  Year Built: 2016,  Status: Open,  Structure Length: 3.38m (11.09ft),  Average Daily Traffic: 1,680 (year 2021),  Truck Traffic: 5%,  Average Future Daily Traffic: 1,680 (year 2039),  Design Load: HL 93,  Features Intersected: ELK CREEK,  Facility Carried by Structure: S 56
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.276,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.1m (43.0ft),  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: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: April 2019,  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: 165451,  Location: 088183102 (Lat: 42.393081,  Lng: -93.002456),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 80 (year 2021),  Average Future Daily Traffic: 80 (year 2040),  Design Load: HS 20,  Features Intersected: BRANCH OF IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.410,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.0m (13.1ft)

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: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.40m (7.87ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: April 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000

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Structure Number: 17521,  Location: 087190304 (Lat: 42.381864,  Lng: -93.046153),  Route carried "on" structure: County highway ,  Year Built: 1959,  Status: Closed,  Structure Length: 1.77m (5.81ft),  Average Daily Traffic: 50 (year 2013),  Average Future Daily Traffic: 50 (year 2039),  Features Intersected: PINE CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.612,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.8m (22.3ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Satisfactory,  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: 8.80m (28.87ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2019,  Bridge Improvement Cost: $190,000,  Roadway Improvement Cost: $19,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 175241,  Location: 087191202 (Lat: 42.362708,  Lng: -93.021806),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 35 (year 2013),  Average Future Daily Traffic: 35 (year 2038),  Design Load: HS 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 17.526,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 60.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2018,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 176,  Location: 088190304 (Lat: 42.470253,  Lng: -93.047783),  Route carried "on" structure: County highway ,  Year Built: 1970,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 1,520 (year 2021),  Truck Traffic: 11%,  Average Future Daily Traffic: 1,520 (year 2040),  Features Intersected: CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.665,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.8m (55.1ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.0m,  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 55.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 7.80m (25.59ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 176006,  Location: 088192304 (Lat: 42.412894,  Lng: -93.026992),  Route carried "on" structure: County highway ,  Year Built: 1992,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 10 (year 2021),  Average Future Daily Traffic: 10 (year 2039),  Design Load: H 20,  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 23.099,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 61.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: April 2019,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 176011,  Location: 088192601 (Lat: 42.412183,  Lng: -93.035839),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 1.43m (4.69ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2040),  Features Intersected: ELK CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.038,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.7m (44.9ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 45.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 32.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 4.70m (15.42ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 17602,  Location: 088192707 (Lat: 42.405517,  Lng: -93.050544),  Route carried "on" structure: County highway ,  Year Built: 1964,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 500 (year 2021),  Truck Traffic: 16%,  Average Future Daily Traffic: 500 (year 2040),  Design Load: H 20,  Features Intersected: ELK CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.660,  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: 1,  Length of Maximum Span: 15.9m (52.2ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.0m,  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.2m (30.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 55.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 25.7 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: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete

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Structure Number: 176051,  Location: 088193602 (Lat: 42.383717,  Lng: -93.021903),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 35 (year 2021),  Average Future Daily Traffic: 35 (year 2040),  Design Load: H 20,  Features Intersected: SMALL,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.858,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 24.1m (79.1ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 61.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 176101,  Location: 088201205 (Lat: 42.444433,  Lng: -93.126281),  Route carried "on" structure: County highway ,  Year Built: 1982,  Status: Open,  Structure Length: 6.52m (21.39ft),  Average Daily Traffic: 45 (year 2013),  Average Future Daily Traffic: 45 (year 2040),  Design Load: H 20,  Features Intersected: IOWA RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.394,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.5m (77.1ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 72.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 21.40m (70.21ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 607875,  Location: 2.4 MILES W OF JCT SR S56 (Lat: 42.429511,  Lng: -93.080836),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 8.53m (27.99ft),  Average Daily Traffic: 90 (year 2021),  Average Future Daily Traffic: 90 (year 2040),  Design Load: HS 20,  Features Intersected: US 20,  Facility Carried by Structure: V AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.668,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 42.1m (138.1ft),  Curb-To-Curb Width: 9.0m (29.5ft),  Out-to-Out Width: 10.0m (32.8ft)

Condition: Deck: Good,  Superstructure: Excellent,  Substructure: Good,  Operating Rating: 60.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 36.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 60788,  Location: 1.2 MILES E OF JCT SR D35 (Lat: 42.426006,  Lng: -93.119061),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 6.83m (22.41ft),  Average Daily Traffic: 110 (year 2021),  Average Future Daily Traffic: 110 (year 2040),  Design Load: HS 20,  Features Intersected: US 20,  Facility Carried by Structure: T AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.226,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 33.8m (110.9ft),  Curb-To-Curb Width: 9.0m (29.5ft),  Out-to-Out Width: 10.0m (32.8ft)

Condition: Deck: Very good,  Superstructure: Excellent,  Substructure: Excellent,  Operating Rating: 90.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 43.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Superior to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  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: 60789,  Location: AT JUNCTION WITH SR S56 (Lat: 42.456128,  Lng: -93.051647),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 9.27m (30.41ft),  Average Daily Traffic: 1,480 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 1,480 (year 2038),  Design Load: HS 20,  Features Intersected: US 20,  Facility Carried by Structure: S 56
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.930,  Lanes on structure: 2,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 46.6m (152.9ft),  Curb-To-Curb Width: 10.8m (35.4ft),  Out-to-Out Width: 11.8m (38.7ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 67.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2018,  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: 60791,  Location: 0.4 MI WEST OF JCT SR S56 (Lat: 42.453033,  Lng: -93.058008),  Route carried "on" structure: US 20,  Year Built: 2003,  Status: Open,  Structure Length: 6.64m (21.78ft),  Average Daily Traffic: 3,800 (year 2020),  Truck Traffic: 30%,  Average Future Daily Traffic: 3,800 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA RIVER RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 279.860,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 19.7m (64.6ft),  Out-to-Out Width: 20.6m (67.6ft)

Condition: Deck: Good,  Superstructure: Excellent,  Substructure: Good,  Operating Rating: 76.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 607915,  Location: 0.4 MILES W OF JCT SR S56 (Lat: 42.453694,  Lng: -93.057411),  Route carried "on" structure: US 20,  Year Built: 2003,  Status: Open,  Structure Length: 6.64m (21.78ft),  Average Daily Traffic: 3,800 (year 2020),  Truck Traffic: 30%,  Average Future Daily Traffic: 3,800 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA RIVER RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 203.262,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 76.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  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: 608325,  Location: 0.3 MILE E OF JCT SR S56 (Lat: 42.458792,  Lng: -93.047225),  Route carried "on" structure: US 20,  Year Built: 2003,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 7,900 (year 2020),  Truck Traffic: 29%,  Average Future Daily Traffic: 7,900 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 280.953,  Lanes on structure: 5,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 26.8m (87.9ft),  Skew: 24 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.3m (14.1ft)

Condition: Channel: Satisfactory,  Culverts: Very good,  Operating Rating: 52.5 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 40.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020

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Structure Number: 60835,  Location: 1.5 mi. W of Jct. SR S56 (Lat: 42.436978,  Lng: -93.073183),  Route carried "on" structure: US 20,  Year Built: 2003,  Status: Open,  Structure Length: 49.96m (163.91ft),  Average Daily Traffic: 7,700 (year 2020),  Truck Traffic: 29%,  Average Future Daily Traffic: 7,700 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 277.665,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 25.9m (85.0ft),  Skew: 30 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Number Of Approach Spans: 2,  Length of Maximum Span: 92.1m (302.2ft),  Curb-To-Curb Width: 24.0m (78.7ft),  Out-to-Out Width: 25.7m (84.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 57.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  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: August 2020,  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: 607875,  Location: 2.4 MILES W OF JCT SR S56 (Lat: 42.429511,  Lng: -93.080836),  Route carried "under" structure: US 20,  Year Built: 2003,  Structure Length: 0. m,  Average Daily Traffic: 7,700 (year 2020),  Truck Traffic: 29%,  Features Intersected: US 20,  Facility Carried by Structure: V AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.629,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 42.1m (138.1ft)

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Structure Number: 60788,  Location: 1.2 MILES E OF JCT SR D35 (Lat: 42.426006,  Lng: -93.119061),  Route carried "under" structure: US 20,  Year Built: 2003,  Structure Length: 0. m,  Average Daily Traffic: 7,700 (year 2020),  Truck Traffic: 29%,  Features Intersected: US 20,  Facility Carried by Structure: T AVENUE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 273.400,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.8m (110.9ft)

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Structure Number: 60789,  Location: AT JUNCTION WITH SR S56 (Lat: 42.456128,  Lng: -93.051647),  Route carried "under" structure: US 20,  Year Built: 2003,  Structure Length: 0. m,  Average Daily Traffic: 8,100 (year 2020),  Truck Traffic: 28%,  Features Intersected: US 20,  Facility Carried by Structure: S 56
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 280.501,  Lanes on structure: 2,  Lanes under structure: 6,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 46.6m (152.9ft)