US Bridges

US-441 (SR-47) over Sandlin Bay

Fair

Columbia County, Florida · 2.8 Mi. N. of CR-6 · Structure no. 290023

Built
1946
79 years old, rebuilt 1998
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

US-441 (SR-47) over Sandlin Bay is a concrete culvert carrying US-441 (SR-47) over Sandlin Bay in Columbia County, Florida. It was built in 1946 and reconstructed in 1998, so it is 79 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 750 vehicles a day, roughly 9% of them trucks, projected to reach 1,301 by 2045. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesUS-441 (SR-47)
CrossesSandlin Bay
Location2.8 Mi. N. of CR-6
RouteU.S. Route 441
CountyColumbia County
StateFlorida
Coordinates30.55693, -82.68072
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length43 ft (13.1 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 traffic750 (2023)
Projected traffic1,301 by 2045
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 US-441 (SR-47) over Sandlin Bay built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1998.

What condition is US-441 (SR-47) over Sandlin Bay 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 September 2024.

How much traffic does US-441 (SR-47) over Sandlin Bay carry?

About 750 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US-441 (SR-47) over Sandlin Bay?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m).

Who owns US-441 (SR-47) over Sandlin Bay?

It is owned by the State Highway Agency.