US Bridges

SR-13 NB (acosta) over St. Johns River

Fair

Duval County, Florida · SR-13 Nb/ St. Johns River · Structure no. 720571

Built
1991
34 years old
Condition
Fair
inspected January 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
1,645 ft
5 main spans
Daily traffic
14,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-13 NB (acosta) over St. Johns River is a prestressed concrete continuous segmental box girder carrying SR-13 NB (acosta) over St. Johns River in Duval County, Florida. It was built in 1991, so it is 34 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 14,500 vehicles a day, roughly 2% of them trucks, projected to reach 25,158 by 2044. The structure is 1,645 ft (501.4 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSR-13 NB (acosta)
CrossesSt. Johns River
LocationSR-13 Nb/ St. Johns River
RouteState Highway 13
CountyDuval County
StateFlorida
Coordinates30.32194, -81.66417
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckOther
Main spans5
Design loadHS 20
Structure length1,645 ft (501.4 m)
Longest span630 ft (192 m)
Deck width75 ft (23 m)
Roadway width56 ft (17 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic14,500 (2022)
Projected traffic25,158 by 2044
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR-13 NB (acosta) over St. Johns River built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR-13 NB (acosta) over St. Johns River 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 January 2024.

How much traffic does SR-13 NB (acosta) over St. Johns River carry?

About 14,500 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is SR-13 NB (acosta) over St. Johns River?

The structure is 1,645 ft (501.4 m) long with a longest span of 630 ft (192 m) and a deck 75 ft wide.

Who owns SR-13 NB (acosta) over St. Johns River?

It is owned by the State Highway Agency.