US Bridges

Stokes Road over St. Marys River

Poor

Nassau County, Florida · 0.7 MI West of CR 121 · Structure no. 744001

Built
1978
47 years old
Condition
Poor
inspected June 2024
Type
Slab
Prestressed Concrete
Length
208 ft
8 main spans
Daily traffic
110
2024 count
Owner
County
County Highway Agency

About this bridge

Stokes Road over St. Marys River is a prestressed concrete slab carrying Stokes Road over St. Marys River in Nassau County, Florida. It was built in 1978, so it is 47 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 110 vehicles a day, roughly 10% of them trucks, projected to reach 191 by 2046. The structure is 208 ft (63.4 m) long and 16 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

CarriesStokes Road
CrossesSt. Marys River
Location0.7 MI West of CR 121
RouteCounty Highway 0
StateFlorida
Coordinates30.38501, -82.03584
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.3 US tons
Inventory rating24.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans8
Design loadUnknown
Structure length208 ft (63.4 m)
Longest span26 ft (7.9 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2024)
Projected traffic191 by 2046
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Stokes Road over St. Marys River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Stokes Road over St. Marys River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Stokes Road over St. Marys River carry?

About 110 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Stokes Road over St. Marys River?

The structure is 208 ft (63.4 m) long with a longest span of 26 ft (7.9 m) and a deck 16 ft wide.

Who owns Stokes Road over St. Marys River?

It is owned by the County Highway Agency.