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


  • National Bridge Inventory (NBI) Statistics
  • 31Number of bridges
  • 177ft / 54.5mTotal length
  • 143,455Total average daily traffic
  • 39,261Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Williamsburg
  • No street view available for this location

New bridges in Williamsburg, IA - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 11920-1929
  • 11930-1939
  • 91960-1969
  • 61970-1979
  • 61980-1989
  • 41990-1999
  • 12000-2009
  • 12010-2019
  • 12020-2022
Average Bridge Daily Traffic in Williamsburg, IA
Average Bridge Truck Traffic in Williamsburg, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 5.9%Excellent
  • 5.9%Very good
  • 29.4%Good
  • 23.5%Satisfactory
  • 11.8%Fair
  • 23.5%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 5.9%Excellent
  • 5.9%Very good
  • 35.3%Good
  • 29.4%Satisfactory
  • 17.6%Fair
  • 5.9%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 5.9%Excellent
  • 23.5%Very good
  • 17.6%Good
  • 5.9%Satisfactory
  • 23.5%Fair
  • 17.6%Poor
  • 5.9%Serious
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 12.0%Very good
  • 28.0%Good
  • 48.0%Satisfactory
  • 12.0%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 10.0%Very good
  • 20.0%Good
  • 70.0%Satisfactory
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Structure Number: 29481,  Location: 1.9 mi. S of Jct. SR F46 (Lat: 41.633394,  Lng: -92.007267),  Route carried "on" structure: State highway 149,  Year Built: 1985,  Status: Open,  Structure Length: 0.98m (3.22ft),  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: 99.902,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  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: 57.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021
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Structure Number: 29491,  Location: 0.9 mi. S of Jct. SR F46 (Lat: 41.648469,  Lng: -92.007400),  Route carried "on" structure: State highway 149,  Year Built: 1985,  Status: Open,  Structure Length: 0.98m (3.22ft),  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: 101.575,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Better than 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: December 2021
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Structure Number: 29501,  Location: 0.3 MI. N OF JCT. SR F46 (Lat: 41.666267,  Lng: -92.007350),  Route carried "on" structure: State highway 149,  Year Built: 1983,  Status: Open,  Structure Length: 5.73m (18.80ft),  Average Daily Traffic: 5,700 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 5,700 (year 2042),  Design Load: HS 20,  Features Intersected: OLD MANS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 103.552,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 78.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2022,  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: 2981,  Location: 3.0 MI. W OF JCT. IA 149 (Lat: 41.688525,  Lng: -92.066219),  Route carried "on" structure: County highway ,  Year Built: 1963,  Status: Open,  Structure Length: 6.92m (22.70ft),  Average Daily Traffic: 3,440 (year 2018),  Truck Traffic: 8%,  Average Future Daily Traffic: 3,440 (year 2040),  Design Load: H 20,  Features Intersected: I-80,  Facility Carried by Structure: FM V-66
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.368,  Lanes on structure: 2,  Lanes under structure: 5,  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: 4,  Length of Maximum Span: 21.0m (68.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 68.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 2984,  Location: 0.4 MILES W OF JCT IA 149 (Lat: 41.687033,  Lng: -92.015722),  Route carried "on" structure: Interstate 80,  Year Built: 1962,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 25,000 (year 2020),  Truck Traffic: 33%,  Average Future Daily Traffic: 25,000 (year 2040),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 352.660,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.4m (80.1ft),  Skew: 23 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 90.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 55.1 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: June 2020
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Structure Number: 2986,  Location: AT JCT OF I-80 & IA 149 (Lat: 41.687236,  Lng: -92.007797),  Route carried "on" structure: Interstate 80,  Year Built: 1963,  Status: Open,  Structure Length: 6.77m (22.21ft),  Average Daily Traffic: 12,200 (year 2020),  Truck Traffic: 33%,  Average Future Daily Traffic: 12,200 (year 2040),  Design Load: HS 20,  Features Intersected: IOWA 149
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 139.812,  Lanes on structure: 2,  Lanes under structure: 4,  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: 4,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 75.9 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 minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 189031,  Location: 079091804 (Lat: 41.649550,  Lng: -91.949261),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2038),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.881,  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: 15.9m (52.2ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 42.4 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 desirable criteria,  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: 5.50m (18.04ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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: 18914,  Location: 079093002 (Lat: 41.629528,  Lng: -91.949231),  Route carried "on" structure: County highway ,  Year Built: 1930,  Status: Posted for load,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Features Intersected: BRANCH OLD MANS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.657,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 4.8m (15.7ft),  Out-to-Out Width: 4.9m (16.1ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 33.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 19.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 4.90m (16.08ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $134,000,  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: 189151,  Location: 079093004 (Lat: 41.621903,  Lng: -91.949136),  Route carried "on" structure: County highway ,  Year Built: 1977,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2040),  Design Load: HS 20,  Features Intersected: BR OLD MAN'S CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.811,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.4m (21.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Good,  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: 2.20m (7.22ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 189291,  Location: 079100608 (Lat: 41.676742,  Lng: -92.066275),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 2,520 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 2,520 (year 2040),  Design Load: HS 20,  Features Intersected: OLD MANS CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.059,  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: 11.9m (39.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 80.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 10.30m (33.79ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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: 189302,  Location: 079100607 (Lat: 41.680853,  Lng: -92.049844),  Route carried "on" structure: County highway ,  Year Built: 2020,  Status: Open,  Structure Length: 2.23m (7.32ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HL 93,  Features Intersected: BRANCH OLD MANS CREEK,  Facility Carried by Structure: 225TH ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.365,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Channel: Very good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 189311,  Location: 079100703 (Lat: 41.666281,  Lng: -92.051889),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Design Load: H 20,  Features Intersected: HOG RUN,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.221,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Skew: 2 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Satisfactory,  Culverts: Good,  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: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.70m (8.86ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 189321,  Location: 079100704 (Lat: 41.662256,  Lng: -92.066617),  Route carried "on" structure: County highway ,  Year Built: 1999,  Status: Open,  Structure Length: 2.29m (7.51ft),  Average Daily Traffic: 2,520 (year 2018),  Truck Traffic: 7%,  Average Future Daily Traffic: 2,520 (year 2038),  Design Load: HS 20,  Features Intersected: HOG RUN,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.450,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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: 9.3m (30.5ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 76.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 45.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 7.50m (24.61ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 189331,  Location: 079100804 (Lat: 41.671631,  Lng: -92.036711),  Route carried "on" structure: County highway ,  Year Built: 1992,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 50 (year 2018),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: OLD MANS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.440,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.7m (44.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Good,  Operating Rating: 65.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 37.7 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 12.50m (41.01ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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: 189341,  Location: 079101005 (Lat: 41.673467,  Lng: -91.994586),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Posted for load,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 150 (year 2018),  Average Future Daily Traffic: 150 (year 2041),  Features Intersected: BR OF OLD MANS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.131,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.4m (24.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Serious,  Channel: Satisfactory,  Operating Rating: 19.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of corrective action,  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: 30.0 - 39.9% below),  Length Of Structure Improvement: 3.20m (10.50ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $20,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 189351,  Location: 079101307 (Lat: 41.651639,  Lng: -91.949725),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 70 (year 2018),  Average Future Daily Traffic: 70 (year 2040),  Design Load: H 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.064,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Poor,  Channel: Fair,  Operating Rating: 30.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 14.3 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: 2.70m (8.86ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $20,000,  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: 189361,  Location: 079101400 (Lat: 41.647722,  Lng: -91.986692),  Route carried "on" structure: County highway ,  Year Built: 2017,  Status: Open,  Structure Length: 1.09m (3.58ft),  Average Daily Traffic: 120 (year 2018),  Average Future Daily Traffic: 120 (year 2041),  Design Load: HL 93,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.452,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Channel: Good,  Culverts: Very good,  Operating Rating: 43.4 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: 33.4 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,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2021
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Structure Number: 189371,  Location: 079101407 (Lat: 41.651794,  Lng: -91.980014),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 45 (year 2018),  Average Future Daily Traffic: 45 (year 2038),  Design Load: H 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.542,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.8m (28.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 53.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 3.00m (9.84ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 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: 189381,  Location: 079101702 (Lat: 41.657517,  Lng: -92.046664),  Route carried "on" structure: County highway ,  Year Built: 1976,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 80 (year 2018),  Average Future Daily Traffic: 80 (year 2040),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.676,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 38.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.1 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: 3.20m (10.50ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $20,000,  Roadway Improvement Cost: $2,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 189401,  Location: 079102703 (Lat: 41.622761,  Lng: -91.993144),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Posted for load,  Structure Length: 4.72m (15.49ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2041),  Features Intersected: OLD MANS CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.711,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 24.4m (80.1ft),  Curb-To-Curb Width: 5.8m (19.0ft),  Out-to-Out Width: 5.9m (19.4ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 19.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 10.1 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: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 18.50m (60.70ft),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Critical Feature Inspection Date: June 2021,  Bridge Improvement Cost: $377,000,  Roadway Improvement Cost: $38,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 189411,  Location: 079102802 (Lat: 41.629269,  Lng: -92.026858),  Route carried "on" structure: County highway ,  Year Built: 1974,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 10 (year 2018),  Average Future Daily Traffic: 10 (year 2040),  Design Load: HS 20,  Features Intersected: DRAINAGE DITCH,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.354,  Lanes on structure: 2,  Owner: County Highway Agency,  Maintenance Responsibility: State Agenciy,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  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: 2.20m (7.22ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 18946,  Location: 079110102 (Lat: 41.686778,  Lng: -92.085442),  Route carried "on" structure: County highway ,  Year Built: 1925,  Status: Posted for load,  Structure Length: 1.59m (5.22ft),  Average Daily Traffic: 70 (year 2018),  Average Future Daily Traffic: 70 (year 2040),  Features Intersected: BRANCH OLD MAN'S CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.776,  Lanes on structure: 2,  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,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 4.9m (16.1ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 27.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 15.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  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: 10.0 - 19.9% below),  Length Of Structure Improvement: 9.00m (29.53ft),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Critical Feature Inspection Date: March 2020,  Bridge Improvement Cost: $243,000,  Roadway Improvement Cost: $24,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 19049,  Location: 080103203 (Lat: 41.702456,  Lng: -92.028167),  Route carried "on" structure: County highway ,  Year Built: 1910,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 80 (year 2018),  Average Future Daily Traffic: 80 (year 2040),  Features Intersected: SMALL,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.250,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 38.8 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: 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: 4.10m (13.45ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $135,000,  Roadway Improvement Cost: $14,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 190761,  Location: 080113602 (Lat: 41.693067,  Lng: -92.085389),  Route carried "on" structure: County highway ,  Year Built: 1975,  Status: Posted for load,  Structure Length: 1.59m (5.22ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Features Intersected: OLD MAN'S CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.093,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Skew: 4 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 5.5m (18.0ft),  Curb-To-Curb Width: 6.5m (21.3ft),  Out-to-Out Width: 6.6m (21.7ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Fair,  Operating Rating: 18.1 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 9.1 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  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: 20.0 - 29.9% below),  Length Of Structure Improvement: 8.00m (26.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $216,000,  Roadway Improvement Cost: $22,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 3627,  Location: 079111206 (Lat: 41.663114,  Lng: -92.086072),  Route carried "on" structure: County highway ,  Year Built: 1975,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 110 (year 2018),  Average Future Daily Traffic: 110 (year 2040),  Design Load: H 20,  Features Intersected: HOG RUN,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.148,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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: Satisfactory,  Operating Rating: 56.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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: 2.70m (8.86ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $15,000,  Roadway Improvement Cost: $2,000
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Structure Number: 504665,  Location: Industrial Park Dr. (Lat: 41.665908,  Lng: -91.999481),  Route carried "on" structure: City street ,  Year Built: 1998,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 250 (year 2000),  Average Future Daily Traffic: 250 (year 2041),  Design Load: HS 20,  Features Intersected: GAILS CREEK,  Facility Carried by Structure: INDUSTRIAL PARK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.507,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.2m (17.1ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 18.20m (59.71ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $250,000,  Roadway Improvement Cost: $11,000
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Structure Number: 60475,  Location: 2.4 mi. W of Jct. IA #149 (Lat: 41.687642,  Lng: -92.054661),  Route carried "on" structure: Interstate 80,  Year Built: 1963,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 26,400 (year 2020),  Truck Traffic: 32%,  Average Future Daily Traffic: 26,400 (year 2040),  Design Load: HS 20,  Features Intersected: NO NAME CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 349.418,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 24.4m (80.1ft),  Skew: 20 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: 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: November 2020
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Structure Number: 2981,  Location: 3.0 MI. W OF JCT. IA 149 (Lat: 41.688525,  Lng: -92.066219),  Route carried "under" structure: Interstate 80,  Year Built: 1963,  Structure Length: 0. m,  Average Daily Traffic: 24,900 (year 2020),  Truck Traffic: 33%,  Features Intersected: I-80,  Facility Carried by Structure: FM V-66
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 348.442,  Lanes on structure: 2,  Lanes under structure: 5,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.0m (68.9ft)

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Structure Number: 2985,  Location: AT JCT. Ia. 149 (Lat: 41.687033,  Lng: -92.008556),  Route carried "under" structure: State highway 149,  Year Built: 1963,  Structure Length: 0. m,  Average Daily Traffic: 3,250 (year 2020),  Truck Traffic: 6%,  Features Intersected: IOWA 149,  Facility Carried by Structure: EB I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 105.851,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 19.8m (65.0ft)

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Structure Number: 2986,  Location: AT JCT OF I-80 & IA 149 (Lat: 41.687236,  Lng: -92.007797),  Route carried "under" structure: State highway 149,  Year Built: 1963,  Structure Length: 0. m,  Average Daily Traffic: 3,250 (year 2020),  Truck Traffic: 6%,  Features Intersected: IOWA 149,  Facility Carried by Structure: WB I-80
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 105.876,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 19.8m (65.0ft)

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Structure Number: 299,  Location: 2.1 MI. E OF JCT. IA 149 (Lat: 41.686706,  Lng: -91.968944),  Route carried "under" structure: Interstate 80,  Year Built: 1963,  Structure Length: 0. m,  Average Daily Traffic: 29,000 (year 2020),  Truck Traffic: 30%,  Features Intersected: I-80,  Facility Carried by Structure: FM W-16
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 356.550,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Girder and Floorbeam System,  Length of Maximum Span: 18.9m (62.0ft)

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