US Bridges

CR-78A over Marias Slough

Poor

Hendry County, Florida · 0.2MI W of SR-80 · Structure no. 074028

Built
1991
34 years old
Condition
Poor
inspected June 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,080
2024 count
Owner
County
County Highway Agency

About this bridge

CR-78A over Marias Slough is a concrete culvert carrying CR-78A over Marias Slough in Hendry 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 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 1,080 vehicles a day, roughly 5% of them trucks, projected to reach 1,640 by 2044. The structure is 32 ft (9.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR-78A
CrossesMarias Slough
Location0.2MI W of SR-80
RouteCounty Highway 78A
CountyHendry County
StateFlorida
Coordinates26.74685, -81.46406
Functional classUrban 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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating57.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,080 (2024)
Projected traffic1,640 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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-78A over Marias Slough built?

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

What condition is CR-78A over Marias Slough 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 CR-78A over Marias Slough carry?

About 1,080 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR-78A over Marias Slough?

The structure is 32 ft (9.7 m) long with a longest span of 11 ft (3.3 m).

Who owns CR-78A over Marias Slough?

It is owned by the County Highway Agency.