Bridge Statistics for Guernsey, Iowa (IA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs
- National Bridge Inventory (NBI) Statistics
- 14Number of bridges
- 118ft / 35.5mTotal length
- 28,970Total average daily traffic
- 9,026Total average daily truck traffic
- National Bridge Inventory (NBI) Registered Bridges for Guernsey
- No street view available for this location
- New bridges - historical statistics
- 11950-1959
- 71960-1969
- 21970-1979
- 11980-1989
- 12000-2009
- 22010-2019
- Bridge Condition - Deck
- 11.1%Excellent
- 11.1%Very good
- 11.1%Good
- 33.3%Satisfactory
- 22.2%Fair
- 11.1%Poor
- Bridge Condition - Superstructure
- 11.1%Excellent
- 11.1%Very good
- 33.3%Good
- 33.3%Satisfactory
- 11.1%Fair
- Bridge Condition - Substructure
- 11.1%Excellent
- 11.1%Very good
- 22.2%Good
- 22.2%Satisfactory
- 22.2%Fair
- 11.1%Poor
- Bridge Condition - Channel
- 20.0%Very good
- 10.0%Good
- 60.0%Satisfactory
- 10.0%Fair
- Bridge Condition - Culverts
- 33.3%Good
- 33.3%Satisfactory
- 33.3%Poor
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Structure Number: 572, Location: 079131503 (Lat: 41.651619, Lng: -92.347581), Route carried "on" structure: City street , Year Built: 1962, Status: Open, Structure Length: 1.16m (3.81ft), Average Daily Traffic: 230 (year 2014), Average Future Daily Traffic: 230 (year 2041), Features Intersected: DRAINAGE, Facility Carried by Structure: CLEVELAND ST
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 0.507, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 9.8m (32.2ft), Skew: 4 degrees, Material/Design: Concrete continuous, Design/Construction: Culvert, Number Of Spans In Main Unit: 2, Length of Maximum Span: 5.5m (18.0ft)
Condition: Channel: Fair, Culverts: Poor, Operating Rating: 32.7 metric tons, Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment, Inventory Rating: 24.5 metric tons, Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment, Structural Evaluation: Meets minimum limits, Waterway Adequacy: Better than present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Length Of Structure Improvement: 3.80m (12.47ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000
Structure Number: 572, Location: 079131503 (Lat: 41.651619, Lng: -92.347581), Route carried "on" structure: City street , Year Built: 1962, Status: Open, Structure Length: 1.16m (3.81ft), Average Daily Traffic: 230 (year 2014), Average Future Daily Traffic: 230 (year 2041), Features Intersected: DRAINAGE, Facility Carried by Structure: CLEVELAND ST
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 0.507, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 9.8m (32.2ft), Skew: 4 degrees, Material/Design: Concrete continuous, Design/Construction: Culvert, Number Of Spans In Main Unit: 2, Length of Maximum Span: 5.5m (18.0ft)
Condition: Channel: Fair, Culverts: Poor, Operating Rating: 32.7 metric tons, Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment, Inventory Rating: 24.5 metric tons, Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment, Structural Evaluation: Meets minimum limits, Waterway Adequacy: Better than present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Length Of Structure Improvement: 3.80m (12.47ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000
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Structure Number: 459, Location: 3.1 MILES N OF JCT IA 85 (Lat: 41.621339, Lng: -92.357625), Route carried "on" structure: State highway 21, Year Built: 1962, Status: Open, Structure Length: 0.73m (2.40ft), Average Daily Traffic: 1,500 (year 2020), Truck Traffic: 26%, Average Future Daily Traffic: 1,500 (year 2040), Design Load: HS 20, Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 51.489, Lanes on structure: 2, Base Highway Network: Yes, Owner: State Highway Agency, Approaching Roadway Width: 13.4m (44.0ft), Skew: 3 degrees, Material/Design: Concrete continuous, Design/Construction: Culvert, Number Of Spans In Main Unit: 2, Length of Maximum Span: 3.4m (11.2ft)
Condition: Channel: Satisfactory, Culverts: Satisfactory, Operating Rating: 90.5 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 89.1 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Equal to present minimum criteria, Waterway Adequacy: Better than present minimum criteria, Approach Roadway Alignment: Equal to present desirable criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: May 2020
Structure Number: 459, Location: 3.1 MILES N OF JCT IA 85 (Lat: 41.621339, Lng: -92.357625), Route carried "on" structure: State highway 21, Year Built: 1962, Status: Open, Structure Length: 0.73m (2.40ft), Average Daily Traffic: 1,500 (year 2020), Truck Traffic: 26%, Average Future Daily Traffic: 1,500 (year 2040), Design Load: HS 20, Features Intersected: STREAM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 51.489, Lanes on structure: 2, Base Highway Network: Yes, Owner: State Highway Agency, Approaching Roadway Width: 13.4m (44.0ft), Skew: 3 degrees, Material/Design: Concrete continuous, Design/Construction: Culvert, Number Of Spans In Main Unit: 2, Length of Maximum Span: 3.4m (11.2ft)
Condition: Channel: Satisfactory, Culverts: Satisfactory, Operating Rating: 90.5 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 89.1 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Equal to present minimum criteria, Waterway Adequacy: Better than present minimum criteria, Approach Roadway Alignment: Equal to present desirable criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: May 2020
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Structure Number: 4591, Location: 3.5 MI. S OF JCT. I-80 (Lat: 41.644831, Lng: -92.358042), Route carried "on" structure: State highway 21, Year Built: 1962, Status: Open, Structure Length: 5.58m (18.31ft), Average Daily Traffic: 1,500 (year 2020), Truck Traffic: 26%, Average Future Daily Traffic: 1,500 (year 2040), Design Load: HS 20, Features Intersected: NORTH ENGLISH RIVER
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 54.098, 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: 21.0m (68.9ft), Curb-To-Curb Width: 9.1m (29.9ft), Out-to-Out Width: 11.0m (36.1ft)
Condition: Deck: Satisfactory, Superstructure: Good, Substructure: Satisfactory, Channel: Satisfactory, Operating Rating: 63.4 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 30.6 metric tons, Method Used To Determine Inventory Rating: Allowable Stress (AS), Structural Evaluation: Equal to present minimum criteria, Deck Geometry: Somewhat better than minimum adequacy, Waterway Adequacy: Equal to present desirable criteria, 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
Structure Number: 4591, Location: 3.5 MI. S OF JCT. I-80 (Lat: 41.644831, Lng: -92.358042), Route carried "on" structure: State highway 21, Year Built: 1962, Status: Open, Structure Length: 5.58m (18.31ft), Average Daily Traffic: 1,500 (year 2020), Truck Traffic: 26%, Average Future Daily Traffic: 1,500 (year 2040), Design Load: HS 20, Features Intersected: NORTH ENGLISH RIVER
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 54.098, 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: 21.0m (68.9ft), Curb-To-Curb Width: 9.1m (29.9ft), Out-to-Out Width: 11.0m (36.1ft)
Condition: Deck: Satisfactory, Superstructure: Good, Substructure: Satisfactory, Channel: Satisfactory, Operating Rating: 63.4 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 30.6 metric tons, Method Used To Determine Inventory Rating: Allowable Stress (AS), Structural Evaluation: Equal to present minimum criteria, Deck Geometry: Somewhat better than minimum adequacy, Waterway Adequacy: Equal to present desirable criteria, 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: 4621, Location: AT JCT. IOWA 21 (Lat: 41.695506, Lng: -92.358117), Route carried "on" structure: Interstate 80, Year Built: 1963, Status: Open, Structure Length: 4.18m (13.71ft), Average Daily Traffic: 11,350 (year 2020), Truck Traffic: 32%, Average Future Daily Traffic: 11,350 (year 2041), Design Load: HS 20, Features Intersected: IOWA 21
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 324.109, Lanes on structure: 3, Lanes under structure: 2, Base Highway Network: Yes, Owner: State Highway Agency, Approaching Roadway Width: 14.6m (47.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 17.1m (56.1ft), Curb-To-Curb Width: 13.2m (43.3ft), Out-to-Out Width: 15.0m (49.2ft)
Condition: Deck: Satisfactory, Superstructure: Fair, Substructure: Good, Operating Rating: 63.4 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 25.9 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Somewhat better than minimum adequacy, Deck Geometry: High priority of replacement, Underclear: Equal to present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: June 2021, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
Structure Number: 4621, Location: AT JCT. IOWA 21 (Lat: 41.695506, Lng: -92.358117), Route carried "on" structure: Interstate 80, Year Built: 1963, Status: Open, Structure Length: 4.18m (13.71ft), Average Daily Traffic: 11,350 (year 2020), Truck Traffic: 32%, Average Future Daily Traffic: 11,350 (year 2041), Design Load: HS 20, Features Intersected: IOWA 21
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 324.109, Lanes on structure: 3, Lanes under structure: 2, Base Highway Network: Yes, Owner: State Highway Agency, Approaching Roadway Width: 14.6m (47.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 17.1m (56.1ft), Curb-To-Curb Width: 13.2m (43.3ft), Out-to-Out Width: 15.0m (49.2ft)
Condition: Deck: Satisfactory, Superstructure: Fair, Substructure: Good, Operating Rating: 63.4 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 25.9 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Somewhat better than minimum adequacy, Deck Geometry: High priority of replacement, Underclear: Equal to present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: June 2021, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 4622, Location: AT JCT. IOWA 21 (Lat: 41.695711, Lng: -92.357611), Route carried "on" structure: Interstate 80, Year Built: 1963, Status: Open, Structure Length: 4.18m (13.71ft), Average Daily Traffic: 11,350 (year 2020), Truck Traffic: 32%, Average Future Daily Traffic: 11,350 (year 2041), Design Load: HS 20, Features Intersected: IOWA 21
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 168.983, Lanes on structure: 3, Lanes under structure: 2, Owner: State Highway Agency, Approaching Roadway Width: 14.6m (47.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 17.1m (56.1ft), Curb-To-Curb Width: 13.7m (44.9ft), Out-to-Out Width: 15.5m (50.9ft)
Condition: Deck: Poor, Superstructure: Satisfactory, Substructure: Satisfactory, Operating Rating: 62.7 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 25.7 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Equal to present minimum criteria, Deck Geometry: High priority of corrective action, Underclear: Equal to present minimum criteria, Approach Roadway Alignment: Equal to present desirable criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: June 2021, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
Structure Number: 4622, Location: AT JCT. IOWA 21 (Lat: 41.695711, Lng: -92.357611), Route carried "on" structure: Interstate 80, Year Built: 1963, Status: Open, Structure Length: 4.18m (13.71ft), Average Daily Traffic: 11,350 (year 2020), Truck Traffic: 32%, Average Future Daily Traffic: 11,350 (year 2041), Design Load: HS 20, Features Intersected: IOWA 21
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 168.983, Lanes on structure: 3, Lanes under structure: 2, Owner: State Highway Agency, Approaching Roadway Width: 14.6m (47.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 17.1m (56.1ft), Curb-To-Curb Width: 13.7m (44.9ft), Out-to-Out Width: 15.5m (50.9ft)
Condition: Deck: Poor, Superstructure: Satisfactory, Substructure: Satisfactory, Operating Rating: 62.7 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 25.7 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), Structural Evaluation: Equal to present minimum criteria, Deck Geometry: High priority of corrective action, Underclear: Equal to present minimum criteria, Approach Roadway Alignment: Equal to present desirable criteria, Designated Inspection Frequency: Every 24 months, Inspection Date: June 2021, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 189851, Location: 079121902 (Lat: 41.637011, Lng: -92.299708), Route carried "on" structure: County highway , Year Built: 2019, Status: Open, Structure Length: 5.85m (19.19ft), Average Daily Traffic: 25 (year 2018), Average Future Daily Traffic: 25 (year 2039), Design Load: HL 93, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: POWESHIEK IOWA
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 13.947, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.3m (24.0ft), Skew: 1 degrees, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 20.7m (67.9ft), 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: December 2019, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete, Deck Protection: Epoxy Coated Reinforcing
Structure Number: 189851, Location: 079121902 (Lat: 41.637011, Lng: -92.299708), Route carried "on" structure: County highway , Year Built: 2019, Status: Open, Structure Length: 5.85m (19.19ft), Average Daily Traffic: 25 (year 2018), Average Future Daily Traffic: 25 (year 2039), Design Load: HL 93, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: POWESHIEK IOWA
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 13.947, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.3m (24.0ft), Skew: 1 degrees, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 20.7m (67.9ft), 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: December 2019, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete, Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 18996, Location: 079123003 (Lat: 41.626919, Lng: -92.289269), Route carried "on" structure: County highway , Year Built: 1952, Status: Posted for load, Structure Length: 1.77m (5.81ft), Average Daily Traffic: 35 (year 2018), Average Future Daily Traffic: 35 (year 2040), Design Load: H 15, Features Intersected: SMALL, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 0.837, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.3m (24.0ft), Material/Design: Steel, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 1, Length of Maximum Span: 16.8m (55.1ft), Curb-To-Curb Width: 6.2m (20.3ft), Out-to-Out Width: 6.7m (22.0ft)
Condition: Deck: Fair, Superstructure: Good, Substructure: Poor, Channel: Satisfactory, Operating Rating: 27.3 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 14.8 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: Better than present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below), Length Of Structure Improvement: 9.00m (29.53ft), Designated Inspection Frequency: Every 24 months, 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: Monolithic Concrete
Structure Number: 18996, Location: 079123003 (Lat: 41.626919, Lng: -92.289269), Route carried "on" structure: County highway , Year Built: 1952, Status: Posted for load, Structure Length: 1.77m (5.81ft), Average Daily Traffic: 35 (year 2018), Average Future Daily Traffic: 35 (year 2040), Design Load: H 15, Features Intersected: SMALL, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 0.837, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.3m (24.0ft), Material/Design: Steel, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 1, Length of Maximum Span: 16.8m (55.1ft), Curb-To-Curb Width: 6.2m (20.3ft), Out-to-Out Width: 6.7m (22.0ft)
Condition: Deck: Fair, Superstructure: Good, Substructure: Poor, Channel: Satisfactory, Operating Rating: 27.3 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 14.8 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: Better than present minimum criteria, Approach Roadway Alignment: Better than present minimum criteria, Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below), Length Of Structure Improvement: 9.00m (29.53ft), Designated Inspection Frequency: Every 24 months, 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: Monolithic Concrete
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Structure Number: 292121, Location: 079130802 (Lat: 41.662831, Lng: -92.396878), Route carried "on" structure: County highway , Year Built: 2006, Status: Open, Structure Length: 0.70m (2.30ft), Average Daily Traffic: 40 (year 2018), Average Future Daily Traffic: 40 (year 2039), Design Load: HS 20, Features Intersected: STREAM, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 15.648, 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: 3.0m (9.8ft)
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: 2.30m (7.55ft), Designated Inspection Frequency: Every 48 months, Inspection Date: December 2019, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000
Structure Number: 292121, Location: 079130802 (Lat: 41.662831, Lng: -92.396878), Route carried "on" structure: County highway , Year Built: 2006, Status: Open, Structure Length: 0.70m (2.30ft), Average Daily Traffic: 40 (year 2018), Average Future Daily Traffic: 40 (year 2039), Design Load: HS 20, Features Intersected: STREAM, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 15.648, 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: 3.0m (9.8ft)
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: 2.30m (7.55ft), Designated Inspection Frequency: Every 48 months, Inspection Date: December 2019, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000
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Structure Number: 292171, Location: 079131701 (Lat: 41.659731, Lng: -92.390072), Route carried "on" structure: County highway , Year Built: 1977, Status: Posted for load, Structure Length: 0.98m (3.22ft), Average Daily Traffic: 5 (year 2018), Average Future Daily Traffic: 5 (year 2041), Features Intersected: STREAM, Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 16.084, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.6m (24.9ft), Skew: 3 degrees, Material/Design: Wood or Timber, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 1, Length of Maximum Span: 9.1m (29.9ft), Curb-To-Curb Width: 6.0m (19.7ft), Out-to-Out Width: 6.1m (20.0ft)
Condition: Deck: Fair, Superstructure: Satisfactory, Substructure: Fair, Channel: Satisfactory, Operating Rating: 18.3 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 14.2 metric tons, Method Used To Determine Inventory Rating: Allowable Stress (AS), Structural Evaluation: Meets minimum limits, Deck Geometry: Meets minimum limits, Waterway Adequacy: Equal to present minimum criteria, Approach Roadway Alignment: Somewhat better than minimum adequacy, Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below), Length Of Structure Improvement: 3.20m (10.50ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000, Deck Structure Type: Wood or Timber, Wearing Surface/Protective System: Wearing Surface: Wood or Timber
Structure Number: 292171, Location: 079131701 (Lat: 41.659731, Lng: -92.390072), Route carried "on" structure: County highway , Year Built: 1977, Status: Posted for load, Structure Length: 0.98m (3.22ft), Average Daily Traffic: 5 (year 2018), Average Future Daily Traffic: 5 (year 2041), Features Intersected: STREAM, Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 16.084, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.6m (24.9ft), Skew: 3 degrees, Material/Design: Wood or Timber, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 1, Length of Maximum Span: 9.1m (29.9ft), Curb-To-Curb Width: 6.0m (19.7ft), Out-to-Out Width: 6.1m (20.0ft)
Condition: Deck: Fair, Superstructure: Satisfactory, Substructure: Fair, Channel: Satisfactory, Operating Rating: 18.3 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 14.2 metric tons, Method Used To Determine Inventory Rating: Allowable Stress (AS), Structural Evaluation: Meets minimum limits, Deck Geometry: Meets minimum limits, Waterway Adequacy: Equal to present minimum criteria, Approach Roadway Alignment: Somewhat better than minimum adequacy, Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 20.0 - 29.9% below), Length Of Structure Improvement: 3.20m (10.50ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, 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: 292181, Location: 079131707 (Lat: 41.648864, Lng: -92.377750), Route carried "on" structure: County highway , Year Built: 1975, Status: Open, Structure Length: 1.25m (4.10ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2041), Design Load: HS 20, Features Intersected: STREAM, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 1.566, 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: 11.9m (39.0ft), Curb or Sidewalk Widths: Left: 0.3m (1.0ft), Right: 0.3m (1.0ft), Curb-To-Curb Width: 7.3m (24.0ft), Out-to-Out Width: 8.0m (26.2ft)
Condition: Deck: Satisfactory, Superstructure: Satisfactory, Substructure: Fair, Channel: Satisfactory, Operating Rating: 58.6 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 35.1 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), 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: 4.10m (13.45ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000, Deck Structure Type: Concrete Precast Panels, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
Structure Number: 292181, Location: 079131707 (Lat: 41.648864, Lng: -92.377750), Route carried "on" structure: County highway , Year Built: 1975, Status: Open, Structure Length: 1.25m (4.10ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2041), Design Load: HS 20, Features Intersected: STREAM, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 1.566, 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: 11.9m (39.0ft), Curb or Sidewalk Widths: Left: 0.3m (1.0ft), Right: 0.3m (1.0ft), Curb-To-Curb Width: 7.3m (24.0ft), Out-to-Out Width: 8.0m (26.2ft)
Condition: Deck: Satisfactory, Superstructure: Satisfactory, Substructure: Fair, Channel: Satisfactory, Operating Rating: 58.6 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 35.1 metric tons, Method Used To Determine Inventory Rating: Load Factor (LF), 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: 4.10m (13.45ft), Designated Inspection Frequency: Every 24 months, Inspection Date: December 2021, Bridge Improvement Cost: $15,000, Roadway Improvement Cost: $2,000, Deck Structure Type: Concrete Precast Panels, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 292191, Location: 079131708 (Lat: 41.646081, Lng: -92.396447), Route carried "on" structure: County highway , Year Built: 2012, Status: Open, Structure Length: 4.05m (13.29ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2039), Design Load: HL 93, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: V 21 (200TH ST)
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 13.787, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.9m (25.9ft), Material/Design: Concrete continuous, Design/Construction: Slab, Number Of Spans In Main Unit: 3, Length of Maximum Span: 15.5m (50.9ft), Curb-To-Curb Width: 9.3m (30.5ft), Out-to-Out Width: 10.1m (33.1ft)
Condition: Deck: Very good, Superstructure: Very good, Substructure: Very good, Channel: Very good, Operating Rating: 72.3 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 43.3 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 48 months, Inspection Date: December 2019, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
Structure Number: 292191, Location: 079131708 (Lat: 41.646081, Lng: -92.396447), Route carried "on" structure: County highway , Year Built: 2012, Status: Open, Structure Length: 4.05m (13.29ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2039), Design Load: HL 93, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: V 21 (200TH ST)
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 13.787, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.9m (25.9ft), Material/Design: Concrete continuous, Design/Construction: Slab, Number Of Spans In Main Unit: 3, Length of Maximum Span: 15.5m (50.9ft), Curb-To-Curb Width: 9.3m (30.5ft), Out-to-Out Width: 10.1m (33.1ft)
Condition: Deck: Very good, Superstructure: Very good, Substructure: Very good, Channel: Very good, Operating Rating: 72.3 metric tons, Method Used To Determine Operating Rating: Load Factor (LF), Inventory Rating: 43.3 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 48 months, Inspection Date: December 2019, Deck Structure Type: Concrete Cast-file-Place, Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 292261, Location: 079132308 (Lat: 41.637839, Lng: -92.328750), Route carried "on" structure: County highway , Year Built: 1987, Status: Open, Structure Length: 5.09m (16.70ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2039), Design Load: HS 20, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 7.802, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.6m (24.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 18.6m (61.0ft), Curb-To-Curb Width: 7.3m (24.0ft), Out-to-Out Width: 7.9m (25.9ft)
Condition: Deck: Good, Superstructure: Good, Substructure: Good, Channel: Satisfactory, Operating Rating: 63.5 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 35.3 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: 16.70m (54.79ft), Designated Inspection Frequency: Every 48 months, Inspection Date: December 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
Structure Number: 292261, Location: 079132308 (Lat: 41.637839, Lng: -92.328750), Route carried "on" structure: County highway , Year Built: 1987, Status: Open, Structure Length: 5.09m (16.70ft), Average Daily Traffic: 15 (year 2018), Average Future Daily Traffic: 15 (year 2039), Design Load: HS 20, Features Intersected: NORTH ENGLISH RIVER, Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 7.802, Lanes on structure: 2, Owner: County Highway Agency, Approaching Roadway Width: 7.6m (24.9ft), Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Number Of Spans In Main Unit: 3, Length of Maximum Span: 18.6m (61.0ft), Curb-To-Curb Width: 7.3m (24.0ft), Out-to-Out Width: 7.9m (25.9ft)
Condition: Deck: Good, Superstructure: Good, Substructure: Good, Channel: Satisfactory, Operating Rating: 63.5 metric tons, Method Used To Determine Operating Rating: Allowable Stress (AS), Inventory Rating: 35.3 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: 16.70m (54.79ft), Designated Inspection Frequency: Every 48 months, Inspection Date: December 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: 4621, Location: AT JCT. IOWA 21 (Lat: 41.695506, Lng: -92.358117), Route carried "under" structure: State highway 21, Year Built: 1963, Structure Length: 0. m, Average Daily Traffic: 1,445 (year 2020), Truck Traffic: 34%, Features Intersected: IOWA 21, Facility Carried by Structure: I 80 EB
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 59.718, Lanes on structure: 3, Lanes under structure: 2, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Length of Maximum Span: 17.1m (56.1ft)
Structure Number: 4621, Location: AT JCT. IOWA 21 (Lat: 41.695506, Lng: -92.358117), Route carried "under" structure: State highway 21, Year Built: 1963, Structure Length: 0. m, Average Daily Traffic: 1,445 (year 2020), Truck Traffic: 34%, Features Intersected: IOWA 21, Facility Carried by Structure: I 80 EB
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 59.718, Lanes on structure: 3, Lanes under structure: 2, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Length of Maximum Span: 17.1m (56.1ft)
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Structure Number: 4622, Location: AT JCT. IOWA 21 (Lat: 41.695711, Lng: -92.357611), Route carried "under" structure: State highway 21, Year Built: 1963, Structure Length: 0. m, Average Daily Traffic: 1,445 (year 2020), Truck Traffic: 34%, Features Intersected: IOWA 21, Facility Carried by Structure: I 80 WB
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 59.742, Lanes on structure: 3, Lanes under structure: 2, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Length of Maximum Span: 17.1m (56.1ft)
Structure Number: 4622, Location: AT JCT. IOWA 21 (Lat: 41.695711, Lng: -92.357611), Route carried "under" structure: State highway 21, Year Built: 1963, Structure Length: 0. m, Average Daily Traffic: 1,445 (year 2020), Truck Traffic: 34%, Features Intersected: IOWA 21, Facility Carried by Structure: I 80 WB
Minimum Vertical Clearance: 30+ m (98+ ft), Kilometerpoint: 59.742, Lanes on structure: 3, Lanes under structure: 2, Material/Design: Prestressed concrete, Design/Construction: Stringer/Multi-beam, Length of Maximum Span: 17.1m (56.1ft)