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Bridge Statistics for Hilton Head Island, South Carolina (SC)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 24Number of bridges
  • 1,972ft / 601mTotal length
  • $6,221,000Total costs
  • 547,837Total average daily traffic
  • 14,684Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Hilton Head Island
  • No street view available for this location

New bridges in Hilton Head Island, SC - historical statistics
  • New bridges - historical statistics
  • 11930-1939
  • 11950-1959
  • 11970-1979
  • 31980-1989
  • 111990-1999
  • 22000-2009
  • 52010-2019
Average Bridge Daily Traffic in Hilton Head Island, SC
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 5.6%Very good
  • 33.3%Good
  • 61.1%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 16.7%Very good
  • 61.1%Good
  • 11.1%Satisfactory
  • 5.6%Fair
  • 5.6%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 16.7%Very good
  • 50.0%Good
  • 22.2%Satisfactory
  • 5.6%Fair
  • 5.6%Poor
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 27.3%Very good
  • 72.7%Good
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Structure Number: 949,  Location: TOWN OF MCCOLL (Lat: 34.658714,  Lng: -79.561381),  Route carried "on" structure: US 15,  Year Built: 1939,  Status: Open,  Structure Length: 0.97m (3.18ft),  Average Daily Traffic: 7,000 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 11,130 (year 2040),  Design Load: H 15,  Features Intersected: BEAVER DAM CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 30.698,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 32.4 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: 32.4 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: 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,  Length Of Structure Improvement: 0.97m (3.18ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020
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Structure Number: 2137,  Location: IN HILTON HEAD ISLAND (Lat: 32.210183,  Lng: -80.746519),  Route carried "on" structure: State highway 79,  Year Built: 2017,  Status: Open,  Structure Length: 14.63m (48.00ft),  Average Daily Traffic: 5,700 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 8,664 (year 2040),  Design Load: HL 93,  Features Intersected: JARVIS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.835,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.6m (28.2ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 12,  Length of Maximum Span: 12.2m (40.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  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,  Channel: Good,  Operating Rating: 46.0 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: 35.6 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 14.63m (48.00ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 2297,  Location: @ HILTON HEAD ISLAND (Lat: 32.230508,  Lng: -80.791844),  Route carried "on" structure: US 278,  Year Built: 1956,  Year Reconstructed: 1984,  Status: Open,  Structure Length: 67.98m (223.03ft),  Average Daily Traffic: 25,700 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 30,840 (year 2040),  Design Load: HS 15,  Features Intersected: MACKAY CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.653,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Navigation Control: Yes ( Vertical Clearance: 7.6m (24.9ft), Horizontal Clearance: 18.6m (61.0ft)),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 54,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Satisfactory,  Superstructure: Poor,  Substructure: Poor,  Channel: Good,  Operating Rating: 41.8 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: 31.4 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 67.97m (223.00ft),  Designated Inspection Frequency: Every 12 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2021,  Underwater Inspection Date: January 2019,  Bridge Improvement Cost: $3,308,000,  Roadway Improvement Cost: $165,000,  Total Project Cost: $3,639,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 7069,  Location: HILTON HEAD ISLAND (Lat: 32.180247,  Lng: -80.724667),  Route carried "on" structure: Business US 278,  Year Built: 1978,  Status: Open,  Structure Length: 4.02m (13.19ft),  Average Daily Traffic: 16,350 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 19,620 (year 2040),  Design Load: HS 20,  Features Intersected: PALMETTO LAGOON
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.891,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 6.7m (22.0ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 38.9 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: 30.1 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,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.02m (13.19ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: August 2020,  Underwater Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 7537,  Location: ON HILTON HEAD ISLAND (Lat: 32.224647,  Lng: -80.781694),  Route carried "on" structure: US 278,  Year Built: 1982,  Status: Open,  Structure Length: 86.01m (282.19ft),  Average Daily Traffic: 25,700 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 30,840 (year 2040),  Design Load: HS 20,  Features Intersected: SKULL CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.651,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Navigation Control: Yes ( Vertical Clearance: 19.8m (65.0ft), Horizontal Clearance: 38.1m (125.0ft)),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 11,  Number Of Approach Spans: 21,  Length of Maximum Span: 54.9m (180.1ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 24.0 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: 18.5 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: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 86.01m (282.19ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2020,  Underwater Inspection Date: January 2019,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 7538,  Location: HILTON HEAD ISLAND (Lat: 32.224600,  Lng: -80.781464),  Route carried "on" structure: US 278,  Year Built: 1982,  Status: Open,  Structure Length: 86.01m (282.19ft),  Average Daily Traffic: 25,700 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 30,840 (year 2040),  Design Load: HS 20,  Features Intersected: SKULL CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.555,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Navigation Control: Yes ( Vertical Clearance: 19.8m (65.0ft), Horizontal Clearance: 38.1m (125.0ft)),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 11,  Number Of Approach Spans: 21,  Length of Maximum Span: 54.9m (180.1ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 24.6 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: 19.1 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: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 86.01m (282.19ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2020,  Underwater Inspection Date: January 2019,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 765,  Location: HILTON HEAD ISLAND (Lat: 32.230675,  Lng: -80.791767),  Route carried "on" structure: US 278,  Year Built: 1983,  Status: Open,  Structure Length: 68.00m (223.10ft),  Average Daily Traffic: 25,700 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 30,840 (year 2040),  Design Load: HS 20,  Features Intersected: MACKAY CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.592,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Navigation Control: Yes ( Vertical Clearance: 7.6m (24.9ft), Horizontal Clearance: 18.6m (61.0ft)),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 55,  Length of Maximum Span: 21.6m (70.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 57.7 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: 29.2 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: Equal to present desirable criteria,  Length Of Structure Improvement: 68.00m (223.10ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2020,  Underwater Inspection Date: January 2019,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 9127,  Location: HILTON HEAD ISLAND (Lat: 32.215467,  Lng: -80.740108),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 4.08m (13.39ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: US 278 BUS EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.235,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.5m (24.6ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 40.8m (133.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 50.2 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: 38.6 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,  Deck Geometry: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.08m (13.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 9128,  Location: HILTON HEAD ISLAND (Lat: 32.214381,  Lng: -80.738619),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 7.32m (24.02ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: RAMP 5012
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.407,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Highway Agency,  Approaching Roadway Width: 7.5m (24.6ft),  Skew: 2 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 56.7 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: 42.8 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,  Deck Geometry: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 7.32m (24.02ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 9129,  Location: HILTON HEAD ISLAND (Lat: 32.192422,  Lng: -80.764914),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 5.33m (17.49ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20,  Features Intersected: S-245/MARSHLAND RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.071,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.4m (40.7ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 54.1 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: 31.1 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,  Deck Geometry: Better than present minimum criteria,  Underclear: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.33m (17.49ft),  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: 913,  Location: HILTON HEAD ISLAND (Lat: 32.215564,  Lng: -80.739806),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: US 278 BUS EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 25.265,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Highway Agency,  Approaching Roadway Width: 7.5m (24.6ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 40.5m (132.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 52.5 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: 40.5 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,  Deck Geometry: Better than present minimum criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.05m (13.29ft),  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: 9131,  Location: HILTON HEAD ISLAND (Lat: 32.214597,  Lng: -80.738500),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 7.22m (23.69ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: S-482/GUMTREE ROAD
Minimum Vertical Clearance: 6.60m (21.65ft),  Kilometerpoint: 25.416,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Highway Agency,  Approaching Roadway Width: 7.5m (24.6ft),  Skew: 2 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 31.7m (104.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 59.6 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: 45.4 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 7.22m (23.69ft),  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: 9132,  Location: HILTON HEAD ISLAND (Lat: 32.192347,  Lng: -80.764686),  Route carried "on" structure: US 278,  Year Built: 1997,  Status: Open,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 11,850 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 14,220 (year 2040),  Design Load: HS 20,  Features Intersected: S-245/MARSHLAND ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.115,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Highway Agency,  Approaching Roadway Width: 7.4m (24.3ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 55.7 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: 27.9 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,  Deck Geometry: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.09m (16.70ft),  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: 949,  Location: IN HILTON HEAD (Lat: 32.189772,  Lng: -80.701794),  Route carried "on" structure: State highway 200,  Year Built: 2000,  Status: Open,  Structure Length: 2.74m (8.99ft),  Average Daily Traffic: 800 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 1,024 (year 2040),  Design Load: HS 25 or greater,  Features Intersected: SALTWATER CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.607,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 11.8m (38.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 61.2 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: 47.3 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: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.74m (8.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 9556,  Location: HILTON HEAD ISLAND (Lat: 32.180111,  Lng: -80.724547),  Route carried "on" structure: Business US 278,  Year Built: 2001,  Status: Open,  Structure Length: 3.66m (12.01ft),  Average Daily Traffic: 16,350 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 19,620 (year 2040),  Design Load: HS 25 or greater,  Features Intersected: PALMETTO LAGOON
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 9.891,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.1m (23.3ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.3m (46.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 15.9 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: 12.3 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: High priority of corrective action,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.54m (14.90ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: August 2020,  Underwater Inspection Date: May 2021,  Bridge Improvement Cost: $148,000,  Roadway Improvement Cost: $37,000,  Total Project Cost: $222,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 9889,  Location: HILTON HEAD (Lat: 32.180267,  Lng: -80.767764),  Route carried "on" structure: US 278,  Year Built: 1994,  Status: Open,  Structure Length: 107.53m (352.79ft),  Average Daily Traffic: 23,700 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 28,440 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: BROAD CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.945,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 20.7m (67.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Number Of Approach Spans: 30,  Length of Maximum Span: 61.0m (200.1ft),  Curb-To-Curb Width: 23.6m (77.4ft),  Out-to-Out Width: 25.2m (82.7ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 37.3 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: 27.9 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 107.53m (352.79ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2020,  Underwater 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: 10062,  Location: 4 MI SE OF BLUFFTON (Lat: 32.232775,  Lng: -80.805631),  Route carried "on" structure: County highway 1526,  Year Built: 2016,  Status: Open,  Structure Length: 36.30m (119.09ft),  Average Daily Traffic: 177,000 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 219,480 (year 2040),  Design Load: HL 93,  Features Intersected: TIDAL MARSH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.855,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: County Highway Agency,  Approaching Roadway Width: 14.3m (46.9ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 13,  Length of Maximum Span: 29.0m (95.1ft),  Curb-To-Curb Width: 14.3m (46.9ft),  Out-to-Out Width: 15.6m (51.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 39.5 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: 21.4 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 36.29m (119.06ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $1,573,000,  Roadway Improvement Cost: $393,000,  Total Project Cost: $2,360,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 10063,  Location: 4 SE OF BLUFFTON (Lat: 32.234128,  Lng: -80.802364),  Route carried "on" structure: County highway 1526,  Year Built: 2016,  Status: Open,  Structure Length: 41.61m (136.52ft),  Average Daily Traffic: 88,500 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 99,120 (year 2040),  Design Load: HL 93,  Features Intersected: TIDAL MARSH
Minimum Vertical Clearance: 6.53m (21.42ft),  Kilometerpoint: 11.272,  Lanes on structure: 1,  Lanes under structure: 4,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Number Of Approach Spans: 14,  Length of Maximum Span: 53.3m (174.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 37.3 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,  Deck Geometry: Meets minimum limits,  Underclear: Superior to present desirable criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 41.61m (136.52ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 10064,  Location: 4 SE OF BLUFFTON (Lat: 32.234669,  Lng: -80.802153),  Route carried "on" structure: County highway 1526,  Year Built: 2016,  Status: Open,  Structure Length: 47.95m (157.32ft),  Average Daily Traffic: 8,850 (year 2021),  Truck Traffic: 2%,  Average Future Daily Traffic: 10,974 (year 2041),  Design Load: HL 93,  Features Intersected: S-242
Minimum Vertical Clearance: 6.32m (20.73ft),  Kilometerpoint: 11.222,  Lanes on structure: 2,  Lanes under structure: 6,  Base Highway Network: Yes,  Owner: County Highway Agency,  Approaching Roadway Width: 10.7m (35.1ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Number Of Approach Spans: 19,  Length of Maximum Span: 48.8m (160.1ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.0m (39.4ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 34.0 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: 26.2 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: Equal to present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 47.95m (157.32ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 9127,  Location: HILTON HEAD ISLAND (Lat: 32.215467,  Lng: -80.740108),  Route carried "under" structure: State highway 245,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 4,100 (year 2020),  Truck Traffic: 2%,  Features Intersected: US 278 BUS EB,  Facility Carried by Structure: US 278 EB
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 1.706,  Lanes on structure: 2,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 40.8m (133.9ft)

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Structure Number: 9129,  Location: HILTON HEAD ISLAND (Lat: 32.192422,  Lng: -80.764914),  Route carried "under" structure: State highway 245,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 4,100 (year 2020),  Truck Traffic: 2%,  Features Intersected: S-245/MARSHLAND RD,  Facility Carried by Structure: US 278 EB
Minimum Vertical Clearance: 5.66m (18.57ft),  Kilometerpoint: 1.477,  Lanes on structure: 2,  Lanes under structure: 3,  Toll: On toll road,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 913,  Location: HILTON HEAD ISLAND (Lat: 32.215564,  Lng: -80.739806),  Route carried "under" structure: Business US 278,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 17,250 (year 2020),  Truck Traffic: 3%,  Features Intersected: US 278 BUS EB
Minimum Vertical Clearance: 5.92m (19.42ft),  Kilometerpoint: 0.632,  Lanes on structure: 2,  Lanes under structure: 3,  Toll: On toll road,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 40.5m (132.9ft)

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Structure Number: 9132,  Location: HILTON HEAD ISLAND (Lat: 32.192347,  Lng: -80.764686),  Route carried "under" structure: State highway 245,  Year Built: 1997,  Structure Length: 0. m,  Average Daily Traffic: 4,100 (year 2020),  Truck Traffic: 2%,  Features Intersected: S-245/MARSHLAND ROAD,  Facility Carried by Structure: US 278 WB
Minimum Vertical Clearance: 6.02m (19.75ft),  Kilometerpoint: 1.506,  Lanes on structure: 2,  Lanes under structure: 4,  Toll: On toll road,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.9m (85.0ft)

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Structure Number: 10064,  Location: 4 SE OF BLUFFTON (Lat: 32.234669,  Lng: -80.802153),  Route carried "under" structure: State highway 242,  Year Built: 2016,  Structure Length: 0. m,  Average Daily Traffic: 137 (year 2021),  Truck Traffic: 5%,  Features Intersected: S-242,  Facility Carried by Structure: L-1526 WB
Minimum Vertical Clearance: 6.32m (20.73ft),  Kilometerpoint: 0.105,  Lanes on structure: 2,  Lanes under structure: 6,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 48.8m (160.1ft)

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