pinellas County Bridge Inspections  

Florida Bridge Information - Pinellas County

Sr-580 Eb / Safety Harbor Bay

Florida State Bridge Inspections
Health Index 1Sufficiency Rating 2
98.9 97.1

National Bridge Inventory Rating
Not Available

Bridge Information
Structure Status: Open, no restriction
County: Pinellas County
Owner: State Highway Agency Maintenance Responsibility: State Highway Agency
Roadway: Sr-580 Eb Facility Crossed: Safety Harbor Bay Rr
Year Built: 1988
Average Daily Traffic - State: 18,250
Average Daily Traffic - NBI: 17,500
Average Daily Truck Traffic - NBI: 525.0 (3 % of NBI Average Daily Traffic)
Future Average Daily Traffic - NBI: 30,363 in year 2032
Bypass, Detour Length: 0.6 mile
Toll System: On free road. The structure is toll-free and carries a toll-free highway.
Functional Classification: Expressways - Other Principal Arterial
Type of Service On the Structure: Highway-pedestrian
Lanes On the Structure: 2
Vertical Clearance Over Bridge Roadway: 3 feet
Type of Service Under the Structure: Highway-waterway-railroad
Lanes Under the Structure: 2
Vertical Clearance Under Bridge Roadway: Railroad beneath structure, 0.25 feet
Historical Significance: Bridge is not eligible for the National Register of Historic Places.
Last Inspection - State: March 20, 2014
Last Inspection - NBI: March, 2010
Designated Inspection Frequency (NBI): Every 24 Months

Bridge Location

National Bridge Inventory Safety Feature
Bridge Median: No median
Bridge Railings: Inspected feature meets currently acceptable standards.
Transitions: Inspected feature does not meet currently acceptable standards or a safety feature is required and none is provided.
Approach Guardrail: Inspected feature meets currently acceptable standards.
Approach Guardrail Ends: Inspected feature meets currently acceptable standards.

National Bridge Inventory Condition Ratings
Deck: GOOD CONDITION - some minor problems.
Superstructure: GOOD CONDITION - some minor problems.
Substructure: GOOD CONDITION - some minor problems.
Channel and Channel Protection: Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition.
Culverts: Not applicable. Use if structure is not a culvert.

National Bridge Inventory Operating Ratings: Allowable Stress (AS) - 6.26 tons
National Bridge Inventory Ratings: Allowable Stress (AS) - 5.62 tons

National Bridge Inventory Appraisal Ratings
Structural Evaluation: 7 - Better than present minimum criteria
Deck Geometry : 7 - Better than present minimum criteria
Underclear, Vertical & Horizontal : 5 - Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway Adequacy : 9 - Superior to present desirable criteria
Approach Roadway Alignment : 9 - Superior to present desirable criteria

Critical Feature Inspection
Fracture Critical Details: N
Underwater Inspection: Y24
Other Special Inspection: N

Cost Estimates
Bridge Improvement Cost: 0
Roadway Improvement Cost: 0
Total Project Cost (Year of Cost Estimate): 0 ()

1. The "health index" is a tool that measures the overall condition of a bridge. The health index typically includes about 10 to 12 different elements that are evaluated by the department. A lower health index means that more work would be required to improve the bridge to an ideal condition. A health index below 85 generally indicates that some repairs are needed, although it doesn't mean the bridge is unsafe. A low health index may also indicate that it would be more economical to replace the bridge than to repair it.

2. The "sufficiency rating" is a tool that is used to help determine whether a bridge that is structurally deficient or functionally obsolete should be repaired or just replaced. The sufficiency rating considers a number of factors, only about half of which relate to the condition of the bridge itself. The sufficiency ratings for bridges are part of a formula used by the Federal Highway Administration when it allocates federal funds to the states for bridge replacement.

Source: Office of Maintenance, Florida Department of Transportation (Last Update: April, 2013) & U.S. Department of Transportation

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