FHWA NBI 2024 Inspection record Public-domain dataset

SR-33

Carrying SR-33 over SILICA CREEK

1MI N OF GREENPOND DR, Polk, Florida

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: SR-33

The SR-33 bridge in Polk, Florida carries SR-33 over SILICA CREEK. It was built in 1941, making it 85 years old today. It was last reconstructed in 2000, extending its service life. The structure is built primarily of concrete and spans 2 sections, stretching 6.3 meters (21 feet) end to end. Daily traffic averages 10,800 vehicles, placing it in the heavily-trafficked tier of Florida bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 24.9 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How SR-33 compares

▼ 14.0
Load rating vs Florida average (38.9 t)
Bottom 14%
Lower load rating than 86% of Florida bridges
360
Bridges in Polk
SR-33 24.9 t
Florida average 38.9 t

Live comparison across Florida.

Historical Sufficiency Rating

PlainBridge-computed
78.3 / 100 - historical 50–79.9 band
Structural adequacy /55
48.3
Serviceability /30
30.0
Essentiality /15
0.0
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
24.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1941
Last Reconstructed
2000
Material
Concrete
Number of Spans
2
Structure Length
6.3 m (21 ft)
Owner
State Highway Agency
Avg Daily Traffic
10,800 vehicles/day
Structure Number
160146

How to read this record

This page shows what the last federal inspection recorded, not whether SR-33 is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare SR-33 against other structures in Polk and across Florida. Florida bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for SR-33?

SR-33 in Polk, Florida on the FHWA's 0–9 scale.

How often is SR-33 inspected?

SR-33's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 10,800 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. SR-33 is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for SR-33?

SR-33 has an NBI inventory load rating of 24.9 metric tons.

Who is responsible for maintaining SR-33?

SR-33 is owned and maintained by State Highway Agency.

How old is SR-33 and does age affect safety?

SR-33 was built in 1941, making it 85 years old and last reconstructed in 2000.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.