US Bridges

SR-31 over Shell Creek

Fair

Charlotte County, Florida · 1.2 Mi. North of CR-74 · Structure no. 010015

Built
1970
55 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
6,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR-31 over Shell Creek is a concrete culvert carrying SR-31 over Shell Creek in Charlotte County, Florida. It was built in 1970, so it is 55 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 6,000 vehicles a day, roughly 46% of them trucks, projected to reach 10,410 by 2044. The structure is 36 ft (11 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesSR-31
CrossesShell Creek
Location1.2 Mi. North of CR-74
RouteState Highway 31
CountyCharlotte County
StateFlorida
Coordinates26.96451, -81.76069
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating29.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 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 traffic6,000 (2024)
Projected traffic10,410 by 2044
Trucks46%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-31 over Shell Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR-31 over Shell Creek 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 June 2024.

How much traffic does SR-31 over Shell Creek carry?

About 6,000 vehicles per day (2024 count), of which roughly 46% are trucks.

How long is SR-31 over Shell Creek?

The structure is 36 ft (11 m) long with a longest span of 12 ft (3.7 m).

Who owns SR-31 over Shell Creek?

It is owned by the State Highway Agency.