US Bridges

CR 347 over Sandfly Marsh

Fair

Levy County, Florida · 9.5 Miles North of SR 24 · Structure no. 340021

Built
1957
68 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
650
2024 count
Owner
County
County Highway Agency

About this bridge

CR 347 over Sandfly Marsh is a concrete culvert carrying CR 347 over Sandfly Marsh in Levy County, Florida. It was built in 1957, so it is 68 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 5 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 650 vehicles a day, roughly 3% of them trucks, projected to reach 1,128 by 2046. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 347
CrossesSandfly Marsh
Location9.5 Miles North of SR 24
RouteCounty Highway 347
CountyLevy County
StateFlorida
Coordinates29.30656, -83.03272
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2024)
Projected traffic1,128 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CR 347 over Sandfly Marsh built?

It was built in 1957, making it 68 years old in 2025.

What condition is CR 347 over Sandfly Marsh 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 2024.

How much traffic does CR 347 over Sandfly Marsh carry?

About 650 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is CR 347 over Sandfly Marsh?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3.2 m).

Who owns CR 347 over Sandfly Marsh?

It is owned by the County Highway Agency.