US Bridges

CR257 over Aucilla River

Poor

Jefferson County, Florida · 7.9 Miles South US19/SR20 · Structure no. 544061

Built
1984
41 years old
Condition
Poor
inspected June 2023
Type
Slab
Prestressed Concrete
Length
176 ft
6 main spans
Daily traffic
400
2023 count
Owner
County
County Highway Agency

About this bridge

CR257 over Aucilla River is a prestressed concrete slab carrying CR257 over Aucilla River in Jefferson County, Florida. It was built in 1984, so it is 41 years old, younger 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 400 vehicles a day, roughly 11% of them trucks, projected to reach 440 by 2043. The structure is 176 ft (53.6 m) long and 35 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesCR257
CrossesAucilla River
Location7.9 Miles South US19/SR20
RouteCounty Highway 257
CountyJefferson County
StateFlorida
Coordinates30.27331, -83.85701
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating59 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span29 ft (8.9 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic400 (2023)
Projected traffic440 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was CR257 over Aucilla River built?

It was built in 1984, making it 41 years old in 2025.

What condition is CR257 over Aucilla 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 2023.

How much traffic does CR257 over Aucilla River carry?

About 400 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is CR257 over Aucilla River?

The structure is 176 ft (53.6 m) long with a longest span of 29 ft (8.9 m) and a deck 35 ft wide.

Who owns CR257 over Aucilla River?

It is owned by the County Highway Agency.