US Bridges

CR-74 over Myrtle Slough

Fair

Charlotte County, Florida · 4.4MI East of US-17 · Structure no. 010003

Built
1972
53 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
5,300
2023 count
Owner
County
County Highway Agency

About this bridge

CR-74 over Myrtle Slough is a concrete culvert carrying CR-74 over Myrtle Slough in Charlotte County, Florida. It was built in 1972, so it is 53 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 6 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 5,300 vehicles a day, roughly 31% of them trucks, projected to reach 9,196 by 2042. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesCR-74
CrossesMyrtle Slough
Location4.4MI East of US-17
RouteCounty Highway 74
CountyCharlotte County
StateFlorida
Coordinates26.94677, -81.93072
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.1 US tons
Inventory rating34.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length36 ft (11.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic9,196 by 2042
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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-74 over Myrtle Slough built?

It was built in 1972, making it 53 years old in 2025.

What condition is CR-74 over Myrtle Slough 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 May 2023.

How much traffic does CR-74 over Myrtle Slough carry?

About 5,300 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is CR-74 over Myrtle Slough?

The structure is 36 ft (11.1 m) long with a longest span of 12 ft (3.7 m).

Who owns CR-74 over Myrtle Slough?

It is owned by the County Highway Agency.