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


  • National Bridge Inventory (NBI) Statistics
  • 28Number of bridges
  • 292ft / 88.6mTotal length
  • 66,165Total average daily traffic
  • 7,627Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Mount Vernon
  • No street view available for this location

New bridges in Mount Vernon, IA - historical statistics
  • New bridges - historical statistics
  • 11930-1939
  • 11950-1959
  • 11960-1969
  • 11970-1979
  • 31980-1989
  • 71990-1999
  • 42000-2009
  • 102010-2019
Reconstructed bridges in Mount Vernon, IA - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11960-1969
  • 01970-1979
  • 11980-1989
  • 11990-1999
Average Bridge Daily Traffic in Mount Vernon, IA
Average Bridge Truck Traffic in Mount Vernon, IA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 26.3%Very good
  • 36.8%Good
  • 31.6%Satisfactory
  • 5.3%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 26.3%Very good
  • 36.8%Good
  • 31.6%Satisfactory
  • 5.3%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 31.6%Very good
  • 42.1%Good
  • 15.8%Satisfactory
  • 10.5%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 5.3%Excellent
  • 26.3%Very good
  • 36.8%Good
  • 31.6%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 20.0%Excellent
  • 40.0%Very good
  • 20.0%Good
  • 20.0%Satisfactory
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Structure Number: 33571,  Location: 3.1 MI. S OF JCT. US #30 (Lat: 41.881678,  Lng: -91.466625),  Route carried "on" structure: State highway 1,  Year Built: 1992,  Status: Open,  Structure Length: 31.58m (103.61ft),  Average Daily Traffic: 6,300 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 6,300 (year 2040),  Design Load: HS 20,  Features Intersected: CEDAR RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 167.608,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 11,  Length of Maximum Span: 29.6m (97.1ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 73.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 44.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: November 2020,  Underwater Inspection Date: July 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: 33581,  Location: 2.3 mi. S of jct. US 30 (Lat: 41.890714,  Lng: -91.453400),  Route carried "on" structure: State highway 1,  Year Built: 1991,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 6,300 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 6,300 (year 2041),  Design Load: HS 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 169.095,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 37.6 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: 28.8 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: March 2021
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Structure Number: 33921,  Location: 082050514 (Lat: 41.942997,  Lng: -91.453300),  Route carried "on" structure: County highway ,  Year Built: 1974,  Status: Open,  Structure Length: 3.75m (12.30ft),  Average Daily Traffic: 1,100 (year 2021),  Truck Traffic: 11%,  Average Future Daily Traffic: 1,100 (year 2040),  Design Load: HS 20,  Features Intersected: ABBEY CREEK,  Facility Carried by Structure: MT VERNON RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.656,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.3m (46.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Operating Rating: 44.7 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: 34.3 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: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  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: 205281,  Location: 081050304 (Lat: 41.856458,  Lng: -91.421322),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Posted for load,  Structure Length: 1.04m (3.41ft),  Average Daily Traffic: 80 (year 2018),  Average Future Daily Traffic: 80 (year 2041),  Design Load: HS 20,  Features Intersected: SMALL STREAM,  Facility Carried by Structure: VEGA RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.617,  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: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 20.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 11.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 30.0 - 39.9% below),  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
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Structure Number: 219921,  Location: 082050303 (Lat: 41.947253,  Lng: -91.417272),  Route carried "on" structure: County highway ,  Year Built: 1993,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 120 (year 2017),  Average Future Daily Traffic: 120 (year 2040),  Design Load: HS 20,  Features Intersected: TURTLE CREEK,  Facility Carried by Structure: ABBE HILLS RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.190,  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: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.2m (23.6ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  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: July 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 21993,  Location: 082050302 (Lat: 41.937989,  Lng: -91.424306),  Route carried "on" structure: County highway ,  Year Built: 1960,  Year Reconstructed: 1991,  Status: Open,  Structure Length: 3.72m (12.20ft),  Average Daily Traffic: 860 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 860 (year 2040),  Design Load: H 20,  Features Intersected: ABBE CREEK,  Facility Carried by Structure: SPRINGVILLE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.238,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.0m (45.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 31.8 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: 24.3 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: Meets minimum limits,  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 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 219941,  Location: 082050306 (Lat: 41.946875,  Lng: -91.409681),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 3.14m (10.30ft),  Average Daily Traffic: 300 (year 2021),  Average Future Daily Traffic: 300 (year 2040),  Design Load: HS 20,  Features Intersected: TRIB TO ABBE CREEK,  Facility Carried by Structure: INK ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.213,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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: 9.1m (29.9ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 89.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 53.5 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: Equal to present desirable 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: 219981,  Location: 082050507 (Lat: 41.939533,  Lng: -91.460669),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 2.93m (9.61ft),  Average Daily Traffic: 35 (year 2021),  Truck Traffic: 34%,  Average Future Daily Traffic: 35 (year 2040),  Design Load: HS 20,  Features Intersected: ABBE CREEK,  Facility Carried by Structure: ABBE VIEW RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.917,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  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: July 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 220011,  Location: 082051604 (Lat: 41.911306,  Lng: -91.443739),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 40 (year 2017),  Average Future Daily Traffic: 40 (year 2040),  Design Load: HS 20,  Features Intersected: WILLOW CREEK,  Facility Carried by Structure: WILLOW CR.RD.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.505,  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: 7.0m (23.0ft),  Curb-To-Curb Width: 7.1m (23.3ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 80.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 59.1 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 220021,  Location: 082051705 (Lat: 41.906847,  Lng: -91.446986),  Route carried "on" structure: County highway ,  Year Built: 1998,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 80 (year 2017),  Average Future Daily Traffic: 80 (year 2040),  Design Load: HS 20,  Features Intersected: TRIB TO CEDAR RIVER,  Facility Carried by Structure: HENIK RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.326,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: 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: August 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 220031,  Location: 082051802 (Lat: 41.907231,  Lng: -91.481656),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 1,770 (year 2021),  Truck Traffic: 7%,  Average Future Daily Traffic: 1,770 (year 2040),  Design Load: HL 93,  Features Intersected: BALES BRANCH CR.,  Facility Carried by Structure: CEDAR RIVER RD.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.335,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Satisfactory,  Culverts: Very good,  Operating Rating: 46.7 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: 36.0 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: Better than present minimum 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: 220041,  Location: 082052201 (Lat: 41.898664,  Lng: -91.405947),  Route carried "on" structure: County highway ,  Year Built: 2004,  Status: Open,  Structure Length: 1.43m (4.69ft),  Average Daily Traffic: 50 (year 2017),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: WEST SPRING CREEK,  Facility Carried by Structure: LIGHT RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.771,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 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: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 220051,  Location: 082052304 (Lat: 41.895517,  Lng: -91.405119),  Route carried "on" structure: County highway ,  Year Built: 2002,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 30 (year 2017),  Average Future Daily Traffic: 30 (year 2040),  Design Load: HS 20,  Features Intersected: SPRING CR,  Facility Carried by Structure: MC CLELLAND RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.558,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Very good,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum 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 24 months,  Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 220111,  Location: 082052806 (Lat: 41.883308,  Lng: -91.425428),  Route carried "on" structure: County highway ,  Year Built: 1992,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 20 (year 2021),  Average Future Daily Traffic: 20 (year 2040),  Design Load: HL 93,  Features Intersected: SPRING CREEK,  Facility Carried by Structure: SPRING CR.RD.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.471,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  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: Very good,  Operating Rating: 46.7 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: 36.0 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: Meets minimum limits,  Approach Roadway Alignment: High priority of corrective action,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020
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Structure Number: 220121,  Location: 082053004 (Lat: 41.881650,  Lng: -91.469347),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 260 (year 2021),  Truck Traffic: 20%,  Average Future Daily Traffic: 260 (year 2040),  Design Load: HS 20,  Features Intersected: DILLS RUN,  Facility Carried by Structure: IVANHOE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 13.570,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 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: 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: Wood or Timber
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Structure Number: 220641,  Location: 083053004 (Lat: 41.969889,  Lng: -91.472953),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 60 (year 2017),  Average Future Daily Traffic: 60 (year 2040),  Design Load: HS 20,  Features Intersected: ALLEN CREEK,  Facility Carried by Structure: BALLARD RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.268,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.6m (24.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 78.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 57.9 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: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 36626,  Location: 2T82NR5W (Lat: 41.946483,  Lng: -91.407014),  Route carried "on" structure: County highway ,  Year Built: 2016,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 110 (year 2017),  Average Future Daily Traffic: 110 (year 2040),  Design Load: HS 20,  Features Intersected: STREAM,  Facility Carried by Structure: ABBE HILLS RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.034,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 7.8m (25.6ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 29.8 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: 23.0 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 minimum 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 24 months,  Inspection Date: July 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 50147,  Location: Mt Vernon Road (Lat: 41.929889,  Lng: -91.430753),  Route carried "on" structure: City street ,  Year Built: 1934,  Year Reconstructed: 1969,  Status: Open,  Structure Length: 5.91m (19.39ft),  Average Daily Traffic: 2,710 (year 2017),  Average Future Daily Traffic: 2,710 (year 2041),  Design Load: HS 20,  Features Intersected: UP RR,  Facility Carried by Structure: FIRST ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.816,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 11.3m (37.1ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 14.6m (47.9ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 9.2m (30.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 38.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 26.9 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 60751,  Location: 2.5 mi. W of Jct. IA #1 (Lat: 41.917722,  Lng: -91.471844),  Route carried "on" structure: US 30,  Year Built: 1951,  Year Reconstructed: 1999,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 12,000 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 12,000 (year 2040),  Design Load: H 20,  Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 418.991,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 25.6m (84.0ft),  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: Good,  Culverts: Satisfactory,  Operating Rating: 24.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 18.1 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020
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Structure Number: 700505,  Location: 0.9 MI W US30/IA1 INTCHG (Lat: 41.916547,  Lng: -91.443164),  Route carried "on" structure: US 30,  Year Built: 2018,  Status: Open,  Structure Length: 5.47m (17.95ft),  Average Daily Traffic: 5,900 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 5,900 (year 2040),  Design Load: HL 93,  Features Intersected: WILLOW CREEK ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 110.939,  Lanes on structure: 2,  Lanes under structure: 2,  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: 22.3m (73.2ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: 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,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 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: 70051,  Location: 0.9 Mi W US30/IA1 INTCHG (Lat: 41.916386,  Lng: -91.444256),  Route carried "on" structure: US 30,  Year Built: 2019,  Status: Open,  Structure Length: 5.46m (17.91ft),  Average Daily Traffic: 5,900 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 5,900 (year 2040),  Design Load: HL 93,  Features Intersected: WILLOW CREEK ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 421.286,  Lanes on structure: 2,  Lanes under 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: 22.3m (73.2ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 54.7m (179.5ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: 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,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 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: 700515,  Location: US 30 and IA 1 INTCHG (Lat: 41.911669,  Lng: -91.427964),  Route carried "on" structure: US 30,  Year Built: 2019,  Status: Open,  Structure Length: 6.00m (19.69ft),  Average Daily Traffic: 3,400 (year 2020),  Truck Traffic: 16%,  Average Future Daily Traffic: 3,400 (year 2040),  Design Load: HL 93,  Features Intersected: IA 1
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 109.548,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 34.1m (111.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: 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,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 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: 70052,  Location: US 30 and IA 1 INTCHG (Lat: 41.911750,  Lng: -91.428814),  Route carried "on" structure: US 30,  Year Built: 2019,  Status: Open,  Structure Length: 6.00m (19.69ft),  Average Daily Traffic: 3,400 (year 2020),  Truck Traffic: 16%,  Average Future Daily Traffic: 3,400 (year 2040),  Design Load: HL 93,  Features Intersected: IA 1
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 422.686,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 34.1m (111.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: 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,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 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: 700555,  Location: 1.4 mi. E US30/IA1 INTCHG (Lat: 41.903847,  Lng: -91.403875),  Route carried "on" structure: US 30,  Year Built: 2018,  Status: Open,  Structure Length: 0.80m (2.62ft),  Average Daily Traffic: 7,700 (year 2020),  Truck Traffic: 18%,  Average Future Daily Traffic: 7,700 (year 2040),  Design Load: HL 93,  Features Intersected: DRAINAGE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 424.976,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 21 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Excellent,  Culverts: Excellent,  Operating Rating: 78.4 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: 60.3 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: Superior to present desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020
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Structure Number: 700505,  Location: 0.9 MI W US30/IA1 INTCHG (Lat: 41.916547,  Lng: -91.443164),  Route carried "under" structure: County highway ,  Year Built: 2018,  Structure Length: 0. m,  Average Daily Traffic: 20 (year 2017),  Features Intersected: WILLOW CREEK ROAD,  Facility Carried by Structure: US 30 WB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.086,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.3m (73.2ft)

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Structure Number: 70051,  Location: 0.9 Mi W US30/IA1 INTCHG (Lat: 41.916386,  Lng: -91.444256),  Route carried "under" structure: County highway ,  Year Built: 2019,  Structure Length: 0. m,  Average Daily Traffic: 20 (year 2017),  Features Intersected: WILLOW CREEK ROAD,  Facility Carried by Structure: US 30 EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.057,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.3m (73.2ft)

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Structure Number: 700515,  Location: US 30 and IA 1 INTCHG (Lat: 41.911669,  Lng: -91.427964),  Route carried "under" structure: State highway 1,  Year Built: 2019,  Structure Length: 0. m,  Average Daily Traffic: 3,800 (year 2020),  Truck Traffic: 9%,  Features Intersected: IA 1,  Facility Carried by Structure: US 30 WB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 172.235,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 34.1m (111.9ft)

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Structure Number: 70052,  Location: US 30 and IA 1 INTCHG (Lat: 41.911750,  Lng: -91.428814),  Route carried "under" structure: State highway 1,  Year Built: 2019,  Structure Length: 0. m,  Average Daily Traffic: 3,800 (year 2020),  Truck Traffic: 9%,  Features Intersected: IA 1,  Facility Carried by Structure: US 30 EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 172.208,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 34.1m (111.9ft)

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