US Bridges

CR 146 over Aucilla River

Fair

Jefferson County, Florida · 9.23 Miles N of US90/SR10 · Structure no. 540035

Built
1951
74 years old, rebuilt 2008
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
251 ft
10 main spans
Daily traffic
750
2022 count
Owner
County
County Highway Agency

About this bridge

CR 146 over Aucilla River is a steel continuous stringer/multi-beam or girder carrying CR 146 over Aucilla River in Jefferson County, Florida. It was built in 1951 and reconstructed in 2008, so it is 74 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.

It carries about 750 vehicles a day, roughly 13% of them trucks, projected to reach 825 by 2042. The structure is 251 ft (76.4 m) long and 26 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesCR 146
CrossesAucilla River
Location9.23 Miles N of US90/SR10
RouteCounty Highway 146
CountyJefferson County
StateFlorida
Coordinates30.59623, -83.72111
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length251 ft (76.4 m)
Longest span25 ft (7.7 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2022)
Projected traffic825 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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$900,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 146 over Aucilla River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2008.

What condition is CR 146 over Aucilla 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 March 2024.

How much traffic does CR 146 over Aucilla River carry?

About 750 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is CR 146 over Aucilla River?

The structure is 251 ft (76.4 m) long with a longest span of 25 ft (7.7 m) and a deck 26 ft wide.

Who owns CR 146 over Aucilla River?

It is owned by the County Highway Agency.