US Bridges

SR-66 over Mineral Branch

Fair

Hardee County, Florida · 6.6 MI East of US-17 · Structure no. 060026

Built
1960
65 years old, rebuilt 2000
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,600
2024 count
Owner
State
State Highway Agency

About this bridge

SR-66 over Mineral Branch is a concrete culvert carrying SR-66 over Mineral Branch in Hardee County, Florida. It was built in 1960 and reconstructed in 2000, so it is 65 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 5,600 vehicles a day, roughly 34% of them trucks, projected to reach 9,716 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSR-66
CrossesMineral Branch
Location6.6 MI East of US-17
RouteState Highway 66
CountyHardee County
StateFlorida
Coordinates27.46322, -81.69993
Functional classRural Principal Arterial - Other

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 protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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 rating82.1 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.4 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 traffic5,600 (2024)
Projected traffic9,716 by 2044
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-66 over Mineral Branch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2000.

What condition is SR-66 over Mineral Branch 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 January 2024.

How much traffic does SR-66 over Mineral Branch carry?

About 5,600 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is SR-66 over Mineral Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SR-66 over Mineral Branch?

It is owned by the State Highway Agency.