US Bridges

US-1 SB (SR-15) over Braddock Creek

Fair

Nassau County, Florida · 3 Mi. N. of Duval Co. · Structure no. 740011

Built
1924
101 years old, rebuilt 1987
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
42 ft
2 main spans
Daily traffic
8,050
2022 count
Owner
State
State Highway Agency

About this bridge

US-1 SB (SR-15) over Braddock Creek is a concrete slab carrying US-1 SB (SR-15) over Braddock Creek in Nassau County, Florida. It was built in 1924 and reconstructed in 1987, so it is 101 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 8,050 vehicles a day, roughly 11% of them trucks, projected to reach 13,967 by 2044. The structure is 42 ft (12.8 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-1 SB (SR-15)
CrossesBraddock Creek
Location3 Mi. N. of Duval Co.
RouteU.S. Route 1
CountyNassau County
StateFlorida
Coordinates30.54436, -81.81598
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length42 ft (12.8 m)
Longest span21 ft (6.4 m)
Deck width57 ft (17.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,050 (2022)
Projected traffic13,967 by 2044
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-1 SB (SR-15) over Braddock Creek built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1987.

What condition is US-1 SB (SR-15) over Braddock 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 November 2023.

How much traffic does US-1 SB (SR-15) over Braddock Creek carry?

About 8,050 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US-1 SB (SR-15) over Braddock Creek?

The structure is 42 ft (12.8 m) long with a longest span of 21 ft (6.4 m) and a deck 57 ft wide.

Who owns US-1 SB (SR-15) over Braddock Creek?

It is owned by the State Highway Agency.