US Bridges

SR-33 over Silica Creek

Fair

Polk County, Florida · 1MI N of Greenpond DR · Structure no. 160146

Built
1941
84 years old, rebuilt 2000
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
10,800
2022 count
Owner
State
State Highway Agency

About this bridge

SR-33 over Silica Creek is a concrete culvert carrying SR-33 over Silica Creek in Polk County, Florida. It was built in 1941 and reconstructed in 2000, so it is 84 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,800 vehicles a day, roughly 30% of them trucks, projected to reach 18,738 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 20.5 mi (33 km).

Location

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CarriesSR-33
CrossesSilica Creek
Location1MI N of Greenpond DR
RouteState Highway 33
CountyPolk County
StateFlorida
Coordinates28.33831, -81.83101
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,800 (2022)
Projected traffic18,738 by 2044
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-33 over Silica Creek built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2000.

What condition is SR-33 over Silica Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does SR-33 over Silica Creek carry?

About 10,800 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is SR-33 over Silica Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns SR-33 over Silica Creek?

It is owned by the State Highway Agency.