polk County Bridge Inspections  

Florida Bridge Information - Polk County

Sr 33 Over Cr 655

Florida State Bridge Inspections
Health Index 1Sufficiency Rating 2
90.0 72.6

National Bridge Inventory Rating
Functionally Obsolete The term "functionally obsolete" only means that a bridge does not meet current road design standards. For example, some bridges are "functionally obsolete" because they were built at a time when lane widths were narrower than the current standard.

Bridge Information
Structure Status: Open, no restriction
County: Polk County
Owner: State Highway Agency Maintenance Responsibility: State Highway Agency
Roadway: Sr 33 Facility Crossed: Cr-655
Year Built: 1949
Average Daily Traffic - State: 8,500
Average Daily Traffic - NBI: 10,000
Average Daily Truck Traffic - NBI: 2100.0 (21 % of NBI Average Daily Traffic)
Future Average Daily Traffic - NBI: 17,350 in year 2027
Bypass, Detour Length: 2.5 mile
Toll System: On free road. The structure is toll-free and carries a toll-free highway.
Functional Classification: Rural - Minor Arterial
Type of Service On the Structure: Highway
Lanes On the Structure: 2
Vertical Clearance Over Bridge Roadway: No restriction exists
Type of Service Under the Structure: Highway, with or without pedestrian
Lanes Under the Structure: 2
Vertical Clearance Under Bridge Roadway: Highway beneath structure, 25.39 feet
Historical Significance: Bridge is not eligible for the National Register of Historic Places.
Last Inspection - State: May 28, 2009
Last Inspection - NBI: May, 2005
Designated Inspection Frequency (NBI): Every 24 Months

Bridge Location

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

National Bridge Inventory Condition Ratings
Deck: SATISFACTORY CONDITION - structural elements show some minor deterioration.
Superstructure: GOOD CONDITION - some minor problems.
Substructure: GOOD CONDITION - some minor problems.
Channel and Channel Protection: Not applicable. Use when bridge is not over a waterway (channel).
Culverts: Not applicable. Use if structure is not a culvert.

National Bridge Inventory Operating Ratings: Load Factor (LF) - 48.1 tons
National Bridge Inventory Ratings: Load Factor (LF) - 29.0 tons

National Bridge Inventory Appraisal Ratings
Structural Evaluation: 7 - Better than present minimum criteria
Deck Geometry : 4 - Meets minimum tolerable limits to be left in place as is
Underclear, Vertical & Horizontal : 3 - Basically intolerable requiring high priority of corrective action
Waterway Adequacy : N - Not applicable
Approach Roadway Alignment : 7 - Better than present minimum criteria

Type of Proposed Work
Work Proposed: Other structural work, including hydraulic replacements.
Work Done By: Work to be done by contract

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

Cost Estimates
Bridge Improvement Cost: 000175
Roadway Improvement Cost: 000018
Total Project Cost (Year of Cost Estimate): 000198 ()


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: January, 2010) & U.S. Department of Transportation

 
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