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

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Structure Number: 6961,  Location: 100382706 (Lat: 43.448558,  Lng: -95.326344),  Route carried "on" structure: City street ,  Year Built: 2009,  Status: Open,  Structure Length: 1.71m (5.61ft),  Average Daily Traffic: 60 (year 2007),  Average Future Daily Traffic: 60 (year 2040),  Design Load: HS 20,  Features Intersected: W BR LITTLE SIOUX RIVER,  Facility Carried by Structure: S.2ND ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.037,  Lanes on structure: 2,  Owner: County Highway Agency,  Maintenance Responsibility: City or Municipal Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.5m (54.1ft),  Curb-To-Curb Width: 8.1m (26.6ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 63.2 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: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 29241,  Location: 0.7 mi. W of E jct SR L67 (Lat: 42.322989,  Lng: -95.584894),  Route carried "on" structure: State highway 175,  Year Built: 1990,  Status: Open,  Structure Length: 4.97m (16.31ft),  Average Daily Traffic: 1,930 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,930 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 73.347,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 17.4m (57.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 80.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.4 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  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: 29251,  Location: 2.2 mi. W of W jct US 59 (Lat: 42.338017,  Lng: -95.539239),  Route carried "on" structure: State highway 175,  Year Built: 2007,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 1,930 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,930 (year 2041),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 77.516,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  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: 41.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021

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Structure Number: 29261,  Location: 1.6 mi. W of W Jct US 59 (Lat: 42.340508,  Lng: -95.528231),  Route carried "on" structure: State highway 175,  Year Built: 2007,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 1,930 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 1,930 (year 2041),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 78.464,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  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: 38.9 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: 30.1 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: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021

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Structure Number: 29471,  Location: 2.0 MI. N OF SR F52 (Lat: 41.614989,  Lng: -92.007250),  Route carried "on" structure: State highway 149,  Year Built: 1985,  Status: Open,  Structure Length: 4.45m (14.60ft),  Average Daily Traffic: 1,990 (year 2020),  Truck Traffic: 8%,  Average Future Daily Traffic: 1,990 (year 2041),  Design Load: HS 20,  Features Intersected: BRANCH OLD MANS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 97.858,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 17.4m (57.1ft),  Curb-To-Curb Width: 12.1m (39.7ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 70.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.7 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: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  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: 16831,  Location: 079322808 (Lat: 41.624661,  Lng: -94.579397),  Route carried "on" structure: County highway ,  Year Built: 1920,  Year Reconstructed: 1959,  Status: Posted for load,  Structure Length: 1.89m (6.20ft),  Average Daily Traffic: 10 (year 2016),  Average Future Daily Traffic: 10 (year 2041),  Features Intersected: MASON CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.943,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 5.6m (18.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Serious,  Channel: Fair,  Operating Rating: 23.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  Deck Geometry: High priority of corrective action,  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: 10.0 - 19.9% below),  Length Of Structure Improvement: 9.00m (29.53ft),  Designated Inspection Frequency: Every 12 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Critical Feature Inspection Date: November 2020,  Bridge Improvement Cost: $205,000,  Roadway Improvement Cost: $21,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 242801,  Location: 083190504 (Lat: 42.025539,  Lng: -93.097578),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 180 (year 2021),  Average Future Daily Traffic: 180 (year 2040),  Design Load: H 15,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.139,  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: 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: Good,  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: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 7.80m (25.59ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 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: 24281,  Location: 083190603 (Lat: 42.025778,  Lng: -93.112578),  Route carried "on" structure: County highway ,  Year Built: 1918,  Status: Posted for load,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2041),  Features Intersected: CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.279,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Serious,  Superstructure: Serious,  Substructure: Poor,  Channel: Fair,  Operating Rating: 18.2 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 10.9 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: High priority of corrective action,  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: 20.0 - 29.9% below),  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $135,000,  Roadway Improvement Cost: $11,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 242911,  Location: 083200304 (Lat: 42.031886,  Lng: -93.165381),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 750 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 750 (year 2040),  Design Load: HS 20,  Features Intersected: LINN CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.519,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Good,  Channel: Good,  Operating Rating: 64.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 37.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than 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: November 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: 24293,  Location: 083201901 (Lat: 41.993294,  Lng: -93.217569),  Route carried "on" structure: County highway ,  Year Built: 1916,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2040),  Features Intersected: N SKUNK RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.176,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.9m (22.6ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 55.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 31.1 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: Equal to present minimum criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $132,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 24294,  Location: 083202002 (Lat: 41.991533,  Lng: -93.213394),  Route carried "on" structure: County highway ,  Year Built: 1917,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 50 (year 2021),  Average Future Daily Traffic: 50 (year 2040),  Features Intersected: N SKUNK RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.821,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Fair,  Channel: Good,  Operating Rating: 59.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 35.1 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,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $132,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 24297,  Location: 083202106 (Lat: 41.985783,  Lng: -93.184275),  Route carried "on" structure: County highway ,  Year Built: 1965,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 240 (year 2021),  Truck Traffic: 22%,  Average Future Daily Traffic: 240 (year 2040),  Design Load: H 20,  Features Intersected: NORTH SKUNK RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.618,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  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: Satisfactory,  Culverts: Fair,  Structural Evaluation: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.70m (8.86ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000

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Structure Number: 24299,  Location: 083202401 (Lat: 41.993097,  Lng: -93.130592),  Route carried "on" structure: County highway ,  Year Built: 1924,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 40 (year 2013),  Average Future Daily Traffic: 40 (year 2041),  Features Intersected: BRANCH NORTH TIMBER CREE,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.965,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  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: 6.2m (20.3ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Poor,  Channel: Poor,  Operating Rating: 50.2 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: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $132,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 24366,  Location: 084193002 (Lat: 42.050767,  Lng: -93.116992),  Route carried "on" structure: County highway ,  Year Built: 1945,  Status: Open,  Structure Length: 2.68m (8.79ft),  Average Daily Traffic: 45 (year 2021),  Average Future Daily Traffic: 45 (year 2041),  Features Intersected: LINN CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 17.091,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.5m (21.3ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Fair,  Operating Rating: 29.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 21.8 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 minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $300,000,  Roadway Improvement Cost: $30,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 243671,  Location: 084193101 (Lat: 42.048383,  Lng: -93.114322),  Route carried "on" structure: County highway ,  Year Built: 1989,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 40 (year 2013),  Average Future Daily Traffic: 40 (year 2039),  Design Load: HS 20,  Features Intersected: LINN CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.717,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 79.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 47.7 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 desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.00m (32.81ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2019,  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: 24386,  Location: 084202502 (Lat: 42.053872,  Lng: -93.136522),  Route carried "on" structure: County highway ,  Year Built: 1919,  Status: Posted for load,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 30 (year 2013),  Average Future Daily Traffic: 30 (year 2041),  Features Intersected: LINN CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.929,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.8m (32.2ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 22.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 10.8 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: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below),  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $132,000,  Roadway Improvement Cost: $13,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 243881,  Location: 084202602 (Lat: 42.061425,  Lng: -93.156164),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Open,  Structure Length: 0.88m (2.89ft),  Average Daily Traffic: 630 (year 2021),  Average Future Daily Traffic: 630 (year 2037),  Design Load: HS 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.847,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.3m (14.1ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 42.4 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: Better than present minimum criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2017,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000

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Structure Number: 243911,  Location: 084203302 (Lat: 42.037358,  Lng: -93.194600),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 2.38m (7.81ft),  Average Daily Traffic: 150 (year 2021),  Average Future Daily Traffic: 150 (year 2039),  Design Load: HS 20,  Features Intersected: LINN CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.036,  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: 8.8m (28.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 76.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 45.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2019,  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: 243921,  Location: 084203404 (Lat: 42.040897,  Lng: -93.165489),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 750 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 750 (year 2041),  Design Load: H 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.520,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.8m (32.2ft),  Curb-To-Curb Width: 9.2m (30.2ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 59.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 32.7 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: Equal to present minimum criteria,  Length Of Structure Improvement: 3.30m (10.83ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 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,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 243931,  Location: 084203601 (Lat: 42.048442,  Lng: -93.125989),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 3.41m (11.19ft),  Average Daily Traffic: 50 (year 2013),  Average Future Daily Traffic: 50 (year 2039),  Design Load: HS 20,  Features Intersected: LINN CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.752,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.4m (44.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 83.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 49.8 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 11.20m (36.75ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2019,  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: 24394,  Location: 084203602 (Lat: 42.040728,  Lng: -93.136342),  Route carried "on" structure: County highway ,  Year Built: 1916,  Status: Posted for load,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 160 (year 2021),  Average Future Daily Traffic: 160 (year 2041),  Features Intersected: LINN CR,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.469,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Material/Design: Concrete,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.7m (22.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 33.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 16.8 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: 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: 7.50m (24.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021,  Bridge Improvement Cost: $180,000,  Roadway Improvement Cost: $18,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 36417,  Location: 083202302 (Lat: 41.991656,  Lng: -93.155253),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 25 (year 2013),  Average Future Daily Traffic: 25 (year 2038),  Design Load: HS 20,  Features Intersected: BR TIMBER CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.866,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  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: 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: Better than present minimum criteria,  Length Of Structure Improvement: 2.60m (8.53ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2018,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000

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Structure Number: 365485,  Location: 083202802 (Lat: 41.986572,  Lng: -93.135858),  Route carried "on" structure: County highway ,  Year Built: 2009,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 20 (year 2021),  Average Future Daily Traffic: 20 (year 2038),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.784,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  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 desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2018