US Bridges

SR-520 WB over ST Johns River

Good

Brevard County, Florida · SR-520 WB -St Johns River · Structure no. 700200

Built
1999
26 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
356 ft
5 main spans
Daily traffic
8,100
2022 count
Owner
State
State Highway Agency

About this bridge

SR-520 WB over ST Johns River is a prestressed concrete stringer/multi-beam or girder carrying SR-520 WB over ST Johns River in Brevard County, Florida. It was built in 1999, so it is 26 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,100 vehicles a day, roughly 14% of them trucks, projected to reach 14,054 by 2044. The structure is 356 ft (108.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR-520 WB
CrossesST Johns River
LocationSR-520 WB -St Johns River
RouteState Highway 520
StateFlorida
Coordinates28.36961, -80.8729
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.4 US tons
Inventory rating56.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length356 ft (108.6 m)
Longest span71 ft (21.6 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2022)
Projected traffic14,054 by 2044
Trucks14%
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 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-520 WB over ST Johns River built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR-520 WB over ST Johns River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does SR-520 WB over ST Johns River carry?

About 8,100 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR-520 WB over ST Johns River?

The structure is 356 ft (108.6 m) long with a longest span of 71 ft (21.6 m) and a deck 47 ft wide.

Who owns SR-520 WB over ST Johns River?

It is owned by the State Highway Agency.