US Bridges

CR 346 over River Styx

FairPosted for load

Alachua County, Florida · 2.1 MI West of CR 325 · Structure no. 260024

Built
1958
67 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
900
2023 count
Owner
County
County Highway Agency

About this bridge

CR 346 over River Styx is a concrete slab carrying CR 346 over River Styx in Alachua County, Florida. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 900 vehicles a day, roughly 3% of them trucks, projected to reach 1,562 by 2042. The structure is 140 ft (42.7 m) long and 26 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesCR 346
CrossesRiver Styx
Location2.1 MI West of CR 325
RouteCounty Highway 346
StateFlorida
Coordinates29.51701, -82.22269
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.9 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,562 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 346 over River Styx built?

It was built in 1958, making it 67 years old in 2025.

What condition is CR 346 over River Styx 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 October 2023.

How much traffic does CR 346 over River Styx carry?

About 900 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 346 over River Styx?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns CR 346 over River Styx?

It is owned by the County Highway Agency.