US Bridges

SE 9th Street over Mackinac Canal

Fair

Lee County, Florida · At Cultural Park Blvd · Structure no. 125552

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
6,780
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

SE 9th Street over Mackinac Canal is a concrete culvert carrying SE 9th Street over Mackinac Canal in Lee County, Florida. It was built in 1967, so it is 58 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 6,780 vehicles a day, roughly 4% of them trucks, projected to reach 20,663 by 2042. The structure is 26 ft (7.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSE 9th Street
CrossesMackinac Canal
LocationAt Cultural Park Blvd
RouteCity Street 0
CountyLee County
StateFlorida
Coordinates26.63611, -81.95806
Functional classUrban Local

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span9 ft (2.7 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,780 (2023)
Projected traffic20,663 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 SE 9th Street over Mackinac Canal built?

It was built in 1967, making it 58 years old in 2025.

What condition is SE 9th Street over Mackinac Canal 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 November 2023.

How much traffic does SE 9th Street over Mackinac Canal carry?

About 6,780 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SE 9th Street over Mackinac Canal?

The structure is 26 ft (7.9 m) long with a longest span of 9 ft (2.7 m) and a deck 38 ft wide.

Who owns SE 9th Street over Mackinac Canal?

It is owned by the City or Municipal Highway Agency.