US Bridges

CR 18 over Sampson River

Fair

Bradford County, Florida · 0.7 MI West of CR 225 · Structure no. 280056

Built
1979
46 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
125 ft
4 main spans
Daily traffic
1,700
2023 count
Owner
County
County Highway Agency

About this bridge

CR 18 over Sampson River is a prestressed concrete slab carrying CR 18 over Sampson River in Bradford County, Florida. It was built in 1979, so it is 46 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 1,700 vehicles a day, roughly 4% of them trucks, projected to reach 2,950 by 2042. The structure is 125 ft (38 m) long and 47 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCR 18
CrossesSampson River
Location0.7 MI West of CR 225
RouteCounty Highway 18
CountyBradford County
StateFlorida
Coordinates29.86028, -82.22956
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating33.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length125 ft (38 m)
Longest span35 ft (10.7 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,950 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Sampson River built?

It was built in 1979, making it 46 years old in 2025.

What condition is CR 18 over Sampson River 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 2023.

How much traffic does CR 18 over Sampson River carry?

About 1,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is CR 18 over Sampson River?

The structure is 125 ft (38 m) long with a longest span of 35 ft (10.7 m) and a deck 47 ft wide.

Who owns CR 18 over Sampson River?

It is owned by the County Highway Agency.