US Bridges

SR-16 over Turnbull Creek

Fair

St. Johns County, Florida · 5.4 Mi. E. of SR-13 · Structure no. 780064

Built
1962
63 years old, rebuilt 1971
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
18,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-16 over Turnbull Creek is a concrete slab carrying SR-16 over Turnbull Creek in St. Johns County, Florida. It was built in 1962 and reconstructed in 1971, so it is 63 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 18,500 vehicles a day, roughly 4% of them trucks, projected to reach 32,098 by 2042. The structure is 100 ft (30.5 m) long and 46 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesSR-16
CrossesTurnbull Creek
Location5.4 Mi. E. of SR-13
RouteState Highway 16
CountySt. Johns County
StateFlorida
Coordinates29.95361, -81.45694
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating33.8 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2022)
Projected traffic32,098 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 SR-16 over Turnbull Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1971.

What condition is SR-16 over Turnbull 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 December 2023.

How much traffic does SR-16 over Turnbull Creek carry?

About 18,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SR-16 over Turnbull Creek?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns SR-16 over Turnbull Creek?

It is owned by the State Highway Agency.