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

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Structure Number: 188881,  Location: 078123402 (Lat: 41.517172,  Lng: -92.239375),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 310 (year 2018),  Average Future Daily Traffic: 310 (year 2039),  Design Load: HS 20,  Features Intersected: GRITTER CREEK,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.801,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Satisfactory,  Culverts: Satisfactory,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Structural Evaluation: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 2.30m (7.55ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2019,  Bridge Improvement Cost: $20,000,  Roadway Improvement Cost: $2,000

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Structure Number: 188891,  Location: 078123502 (Lat: 41.514453,  Lng: -92.220117),  Route carried "on" structure: County highway ,  Year Built: 1977,  Status: Open,  Structure Length: 1.65m (5.41ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2041),  Design Load: H 20,  Features Intersected: GRITTER CREEK,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.509,  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: 15.9m (52.2ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 46.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.2 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: 5.40m (17.72ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $25,000,  Roadway Improvement Cost: $3,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 21189,  Location: 076120301 (Lat: 41.423875,  Lng: -92.219708),  Route carried "on" structure: County highway ,  Year Built: 1939,  Year Reconstructed: 2013,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 15 (year 2018),  Average Future Daily Traffic: 15 (year 2040),  Design Load: H 15,  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.754,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 5.8m (19.0ft),  Out-to-Out Width: 6.4m (21.0ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 41.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.8 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $75,000,  Roadway Improvement Cost: $15,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 211921,  Location: 076120501 (Lat: 41.423750,  Lng: -92.254314),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Posted for load,  Structure Length: 1.62m (5.31ft),  Average Daily Traffic: 25 (year 2018),  Average Future Daily Traffic: 25 (year 2040),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.862,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.9m (52.2ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 7.2m (23.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 27.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 16.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $90,000,  Roadway Improvement Cost: $10,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 211981,  Location: 076120805 (Lat: 41.409333,  Lng: -92.263508),  Route carried "on" structure: County highway ,  Year Built: 2017,  Status: Open,  Structure Length: 1.55m (5.09ft),  Average Daily Traffic: 40 (year 2018),  Average Future Daily Traffic: 40 (year 2041),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.379,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 7.0m (23.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 39.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 32.8 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 desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel

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Structure Number: 212041,  Location: 076121601 (Lat: 41.394797,  Lng: -92.258025),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 30 (year 2018),  Average Future Daily Traffic: 30 (year 2040),  Design Load: HS 20,  Features Intersected: UNNAMED STREAM,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 3.66m (12.01ft),  Kilometerpoint: 11.220,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.9m (48.9ft),  Curb-To-Curb Width: 6.8m (22.3ft),  Out-to-Out Width: 7.7m (25.3ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 39.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 29.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.00m (16.40ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $75,000,  Roadway Improvement Cost: $15,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 21309,  Location: 077121504 (Lat: 41.468281,  Lng: -92.239425),  Route carried "on" structure: County highway ,  Year Built: 1962,  Status: Posted for load,  Structure Length: 4.57m (14.99ft),  Average Daily Traffic: 510 (year 2018),  Truck Traffic: 14%,  Average Future Daily Traffic: 510 (year 2040),  Design Load: H 15,  Features Intersected: S FORK ENGLISH RIVER,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.981,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.0m (59.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Serious,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Fair,  Operating Rating: 29.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 17.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  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: 10.0 - 19.9% below),  Length Of Structure Improvement: 17.00m (55.77ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $370,000,  Roadway Improvement Cost: $80,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 213101,  Location: 077121504 (Lat: 41.471981,  Lng: -92.239436),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 510 (year 2018),  Truck Traffic: 14%,  Average Future Daily Traffic: 510 (year 2038),  Design Load: HS 20,  Features Intersected: TRIB S FORK ENGLISH RIVE,  Facility Carried by Structure: FM
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.393,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  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: 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2018,  Bridge Improvement Cost: $160,000,  Roadway Improvement Cost: $60,000

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Structure Number: 213131,  Location: 077121602 (Lat: 41.470078,  Lng: -92.258889),  Route carried "on" structure: County highway ,  Year Built: 2019,  Status: Open,  Structure Length: 5.85m (19.19ft),  Average Daily Traffic: 90 (year 2018),  Average Future Daily Traffic: 90 (year 2040),  Design Load: HL 93,  Features Intersected: SOUTH FORK ENGLISH RIVER,  Facility Carried by Structure: 180TH AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 30.569,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 7.5m (24.6ft),  Out-to-Out Width: 8.3m (27.2ft)

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: 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: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 213141,  Location: 077121603 (Lat: 41.474486,  Lng: -92.241281),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Posted for load-capacity,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 10 (year 2018),  Average Future Daily Traffic: 10 (year 2040),  Design Load: HS 15,  Features Intersected: TRIB S FORK ENGLISH RIVE,  Facility Carried by Structure: LOCAL(DEAD END)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.272,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Fair,  Operating Rating: 33.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 27.2 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: 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: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $75,000,  Roadway Improvement Cost: $25,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 21322,  Location: 077122402 (Lat: 41.466467,  Lng: -92.200708),  Route carried "on" structure: County highway ,  Year Built: 1953,  Status: Posted for load,  Structure Length: 4.66m (15.29ft),  Average Daily Traffic: 35 (year 2018),  Average Future Daily Traffic: 35 (year 2040),  Design Load: H 15,  Features Intersected: S FORK ENGLISH RIVER,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.411,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 7.0m (23.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 27.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 11.4 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: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 16.00m (52.49ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $310,000,  Roadway Improvement Cost: $75,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 213241,  Location: 077123402 (Lat: 41.427978,  Lng: -92.239186),  Route carried "on" structure: County highway ,  Year Built: 1971,  Year Reconstructed: 2015,  Status: Posted for load-capacity,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 30 (year 2018),  Average Future Daily Traffic: 30 (year 2040),  Features Intersected: STREAM,  Facility Carried by Structure: LOCAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.664,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 37.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 23.3 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: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Bridge Improvement Cost: $105,000,  Roadway Improvement Cost: $25,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel