Jump to a detailed profile or search site with Google Custom Search

Bridge Statistics for Rock City, Illinois (IL)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 13Number of bridges
  • 92ft / 27.8mTotal length
  • 4,450Total average daily traffic
  • 442Total average daily truck traffic
  • 4,461Total future (year 2032) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Rock City
  • No street view available for this location

New bridges in Rock City, IL - historical statistics
  • New bridges - historical statistics
  • 11950-1959
  • 21960-1969
  • 11970-1979
  • 51980-1989
  • 11990-1999
  • 32000-2009
Average Bridge Truck Traffic in Rock City, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 87.5%Very good
  • 12.5%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 88.9%Very good
  • 11.1%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 77.8%Very good
  • 22.2%Good
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 53.8%Very good
  • 46.2%Good
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 75.0%Very good
  • 25.0%Poor
Find on map >>   Show street view

Structure Number: 893002,  Location: 3.0 MI W DAVIS (Lat: 42.428233,  Lng: -89.477403),  Route carried "on" structure: County highway ,  Year Built: 1965,  Status: Open,  Structure Length: 3.07m (10.07ft),  Average Daily Traffic: 625 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 1,100 (year 2040),  Design Load: HS 15,  Features Intersected: ROCK RUN CR,  Facility Carried by Structure: ROCK CITY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.669,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.1m (36.4ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 9.2m (30.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Good,  Channel: Good,  Operating Rating: 48.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 28.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  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: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Other
Find on map >>   Show street view

Structure Number: 893004,  Location: 4 MI SW DAVIS (Lat: 42.367453,  Lng: -89.476089),  Route carried "on" structure: County highway ,  Year Built: 1962,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 900 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 750 (year 2040),  Design Load: HS 15,  Features Intersected: BROWN CREEK,  Facility Carried by Structure: ROCK CITY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.428,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Frame,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 45.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 27.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Other
Find on map >>   Show street view

Structure Number: 893215,  Location: 4.0 MI SE ROCK CITY (Lat: 42.360903,  Lng: -89.447236),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 100 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN CREEK,  Facility Carried by Structure: E BRICK SCHOOL ROA
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.536,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 1 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.6m (47.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Cast-file-Place
Find on map >>   Show street view

Structure Number: 893233,  Location: 3.0 MI NW ROCK CITY (Lat: 42.447381,  Lng: -89.487750),  Route carried "on" structure: County highway ,  Year Built: 1981,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 100 (year 2019),  Truck Traffic: 36%,  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN CREEK,  Facility Carried by Structure: E PLEASANT VIEW RO
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.108,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
Find on map >>   Show street view

Structure Number: 893241,  Location: 1.0 MI N OF ILL 75 (Lat: 42.428903,  Lng: -89.457889),  Route carried "on" structure: County highway ,  Year Built: 1982,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN CREEK,  Facility Carried by Structure: N EGGERT ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.589,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 59.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 35.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  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 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
Find on map >>   Show street view

Structure Number: 893246,  Location: 1.5 MI SE ROCK CITY (Lat: 42.401233,  Lng: -89.447617),  Route carried "on" structure: County highway ,  Year Built: 1984,  Status: Open,  Structure Length: 3.66m (12.01ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN CREEK,  Facility Carried by Structure: E FARM SCHOOL ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.821,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 21.0m (68.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
Find on map >>   Show street view

Structure Number: 893254,  Location: 3.5 MI S ROCK CITY (Lat: 42.360803,  Lng: -89.462983),  Route carried "on" structure: County highway ,  Year Built: 1988,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: BROWN CREEK,  Facility Carried by Structure: E BRICK SCHOOL RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.249,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
Find on map >>   Show street view

Structure Number: 893257,  Location: 4 MI N OF ROCK CITY (Lat: 42.464322,  Lng: -89.468314),  Route carried "on" structure: County highway ,  Year Built: 1986,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN,  Facility Carried by Structure: N SIEDSCHLAG ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.025,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
Find on map >>   Show street view

Structure Number: 89328,  Location: 3 MI. SO DAVIS (Lat: 42.374961,  Lng: -89.442808),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 4.78m (15.68ft),  Average Daily Traffic: 900 (year 2019),  Truck Traffic: 9%,  Average Future Daily Traffic: 868 (year 2032),  Design Load: HS 20,  Features Intersected: ROCK RUN,  Facility Carried by Structure: CEDARVILLE RD.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.773,  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: 17.7m (58.1ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
Find on map >>   Show street view

Structure Number: 895006,  Location: 3.0 MI SE DAKOTA (Lat: 42.374731,  Lng: -89.469569),  Route carried "on" structure: County highway ,  Year Built: 1953,  Status: Posted for load,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 900 (year 2019),  Truck Traffic: 9%,  Average Future Daily Traffic: 868 (year 2032),  Design Load: H 15,  Features Intersected: BRANCH BROWN CREEK,  Facility Carried by Structure: E. CEDARVILLE RD.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.552,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Poor,  Operating Rating: 40.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 3 months,  Inspection Date: October 2020,  Other Special Inspection Date: December 2021
Find on map >>   Show street view

Structure Number: 895112,  Location: 4 MI. SE. ROCK CITY (Lat: 42.357486,  Lng: -89.456508),  Route carried "on" structure: County highway ,  Year Built: 1995,  Status: Open,  Structure Length: 0.89m (2.92ft),  Average Daily Traffic: 50 (year 2020),  Average Future Daily Traffic: 50 (year 2040),  Design Load: HS 20,  Features Intersected: BROWN CREEK,  Facility Carried by Structure: N. KINNEY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.370,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.4m (14.4ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: November 2018
Find on map >>   Show street view

Structure Number: 895129,  Location: 1.5 M S ROCK CITY (Lat: 42.389244,  Lng: -89.471956),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 25 (year 2014),  Average Future Daily Traffic: 75 (year 2040),  Design Load: HS 20,  Features Intersected: BROWN CREEK,  Facility Carried by Structure: KNAUP RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.621,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.8m (12.5ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2020
Find on map >>   Show street view

Structure Number: 89513,  Location: 0.40MI E ROCK GROVE (Lat: 42.461156,  Lng: -89.504278),  Route carried "on" structure: County highway ,  Year Built: 2006,  Status: Open,  Structure Length: 1.32m (4.33ft),  Average Daily Traffic: 700 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 400 (year 2040),  Design Load: HS 20,  Features Intersected: ROCK RUN CR,  Facility Carried by Structure: E ROCK GROVE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.923,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.3m (14.1ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2020
Discuss Rock City, Illinois (IL) on our hugely popular Illinois forum.


City-data.com does not guarantee the accuracy or timeliness of any information on this site.  Use at your own risk.
Some parts © 2024 Advameg, Inc.