US Bridges

US-17 (SR-5) over Lofton Creek

Fair

Nassau County, Florida · 2.9 Mi. N. of SR-A1A · Structure no. 740132

Built
2001
24 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
129 ft
3 main spans
Daily traffic
14,200
2023 count
Owner
State
State Highway Agency

About this bridge

US-17 (SR-5) over Lofton Creek is a concrete slab carrying US-17 (SR-5) over Lofton Creek in Nassau County, Florida. It was built in 2001, so it is 24 years old, younger 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 14,200 vehicles a day, roughly 6% of them trucks, projected to reach 24,637 by 2045. The structure is 129 ft (39.3 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS-17 (SR-5)
CrossesLofton Creek
Location2.9 Mi. N. of SR-A1A
RouteU.S. Route 17
CountyNassau County
StateFlorida
Coordinates30.66303, -81.63501
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating48.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length129 ft (39.3 m)
Longest span43 ft (13.2 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,200 (2023)
Projected traffic24,637 by 2045
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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-17 (SR-5) over Lofton Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is US-17 (SR-5) over Lofton 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 May 2024.

How much traffic does US-17 (SR-5) over Lofton Creek carry?

About 14,200 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US-17 (SR-5) over Lofton Creek?

The structure is 129 ft (39.3 m) long with a longest span of 43 ft (13.2 m) and a deck 47 ft wide.

Who owns US-17 (SR-5) over Lofton Creek?

It is owned by the State Highway Agency.