US Bridges

Gunnery Rd. over Butterfly Canal

Good

Lee County, Florida · 1.3MI N of SR-82 · Structure no. 124132

Built
2007
18 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
17,600
2023 count
Owner
County
County Highway Agency

About this bridge

Gunnery Rd. over Butterfly Canal is a concrete culvert carrying Gunnery Rd. over Butterfly Canal in Lee County, Florida. It was built in 2007, so it is 18 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,600 vehicles a day, roughly 10% of them trucks, projected to reach 18,480 by 2042. The structure is 42 ft (12.9 m) long. If it were closed, the detour would be 4.3 mi (7 km).

CarriesGunnery Rd.
CrossesButterfly Canal
Location1.3MI N of SR-82
RouteCounty Highway 0
StateFlorida
Coordinates26.59876, -81.71301
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.1 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length42 ft (12.9 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 traffic17,600 (2023)
Projected traffic18,480 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 Gunnery Rd. over Butterfly Canal built?

It was built in 2007, making it 18 years old in 2025.

What condition is Gunnery Rd. over Butterfly Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Gunnery Rd. over Butterfly Canal carry?

About 17,600 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Gunnery Rd. over Butterfly Canal?

The structure is 42 ft (12.9 m) long with a longest span of 11 ft (3.3 m).

Who owns Gunnery Rd. over Butterfly Canal?

It is owned by the County Highway Agency.