US Bridges

CR 18 over Olustee Creek

FairPosted for load

Columbia County, Florida · 1.3 MI West of CR 241 · Structure no. 290085

Built
1948
77 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
210 ft
14 main spans
Daily traffic
1,000
2023 count
Owner
County
County Highway Agency

About this bridge

CR 18 over Olustee Creek is a concrete slab carrying CR 18 over Olustee Creek in Columbia County, Florida. It was built in 1948, so it is 77 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 1,000 vehicles a day, roughly 3% of them trucks, projected to reach 1,735 by 2042. The structure is 210 ft (64 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCR 18
CrossesOlustee Creek
Location1.3 MI West of CR 241
RouteCounty Highway 18
StateFlorida
Coordinates29.95028, -82.53017
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating21.2 US tons
Inventory rating16.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadUnknown
Structure length210 ft (64 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,735 by 2042
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 18 over Olustee Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is CR 18 over Olustee Creek 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 18 over Olustee Creek carry?

About 1,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 18 over Olustee Creek?

The structure is 210 ft (64 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns CR 18 over Olustee Creek?

It is owned by the County Highway Agency.