US Bridges

US-17 NB (SR-15) over Black Creek

Fair

Clay County, Florida · N. of Green Cove Springs · Structure no. 710050

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,465 ft
17 main spans
Daily traffic
17,250
2022 count
Owner
State
State Highway Agency

About this bridge

US-17 NB (SR-15) over Black Creek is a prestressed concrete stringer/multi-beam or girder carrying US-17 NB (SR-15) over Black Creek in Clay County, Florida. It was built in 1973, so it is 52 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 17,250 vehicles a day, roughly 6% of them trucks, projected to reach 29,929 by 2042. The structure is 1,465 ft (446.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS-17 NB (SR-15)
CrossesBlack Creek
LocationN. of Green Cove Springs
RouteU.S. Route 17
CountyClay County
StateFlorida
Coordinates30.04116, -81.70874
Functional classUrban Other Principal Arterial

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 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans17
Design loadH 20
Structure length1,465 ft (446.5 m)
Longest span95 ft (29 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,250 (2022)
Projected traffic29,929 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US-17 NB (SR-15) over Black Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is US-17 NB (SR-15) over Black 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 September 2023.

How much traffic does US-17 NB (SR-15) over Black Creek carry?

About 17,250 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US-17 NB (SR-15) over Black Creek?

The structure is 1,465 ft (446.5 m) long with a longest span of 95 ft (29 m) and a deck 42 ft wide.

Who owns US-17 NB (SR-15) over Black Creek?

It is owned by the State Highway Agency.