US Bridges

CR 125 over Mid-Prong ST Marys River

FairPosted for load

Baker County, Florida · 0.1MI N of CR 122 · Structure no. 270020

Built
1948
77 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
285 ft
19 main spans
Daily traffic
6,600
2023 count
Owner
County
County Highway Agency

About this bridge

CR 125 over Mid-Prong ST Marys River is a concrete slab carrying CR 125 over Mid-Prong ST Marys River in Baker County, Florida. It was built in 1948, so it is 77 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 6,600 vehicles a day, roughly 10% of them trucks, projected to reach 11,451 by 2042. The structure is 285 ft (86.9 m) long and 28 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesCR 125
CrossesMid-Prong ST Marys River
Location0.1MI N of CR 122
RouteCounty Highway 125
CountyBaker County
StateFlorida
Coordinates30.43597, -82.28751
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment8: Equal to present desirable criteria
Operating rating25.6 US tons
Inventory rating19.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans19
Design loadUnknown
Structure length285 ft (86.9 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2023)
Projected traffic11,451 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 125 over Mid-Prong ST Marys River built?

It was built in 1948, making it 77 years old in 2025.

What condition is CR 125 over Mid-Prong ST Marys 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 August 2023.

How much traffic does CR 125 over Mid-Prong ST Marys River carry?

About 6,600 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CR 125 over Mid-Prong ST Marys River?

The structure is 285 ft (86.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns CR 125 over Mid-Prong ST Marys River?

It is owned by the County Highway Agency.