US Bridges

CR664(CTY Line Rd) over Sires Ditch

Fair

Polk County, Florida · 5.0MI East of US 17 · Structure no. 160104

Built
1950
75 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
500
2023 count
Owner
County
County Highway Agency

About this bridge

CR664(CTY Line Rd) over Sires Ditch is a concrete culvert carrying CR664(CTY Line Rd) over Sires Ditch in Polk County, Florida. It was built in 1950, so it is 75 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 500 vehicles a day, roughly 12% of them trucks, projected to reach 868 by 2042. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesCR664(CTY Line Rd)
CrossesSires Ditch
Location5.0MI East of US 17
RouteCounty Highway 664
CountyPolk County
StateFlorida
Coordinates27.64626, -81.74128
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 rating59.2 US tons
Inventory rating35.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic868 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR664(CTY Line Rd) over Sires Ditch built?

It was built in 1950, making it 75 years old in 2025.

What condition is CR664(CTY Line Rd) over Sires Ditch 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 July 2023.

How much traffic does CR664(CTY Line Rd) over Sires Ditch carry?

About 500 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is CR664(CTY Line Rd) over Sires Ditch?

The structure is 36 ft (11.1 m) long with a longest span of 12 ft (3.7 m).

Who owns CR664(CTY Line Rd) over Sires Ditch?

It is owned by the County Highway Agency.