US Bridges

Nalle Grade Road over Upper Popash Creek

Good

Lee County, Florida · 2.5MI East of Slater RD · Structure no. 124033

Built
1978
47 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,250
2023 count
Owner
County
County Highway Agency

About this bridge

Nalle Grade Road over Upper Popash Creek is a concrete culvert carrying Nalle Grade Road over Upper Popash Creek in Lee County, Florida. It was built in 1978, so it is 47 years old, older 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 1,250 vehicles a day, roughly 5% of them trucks, projected to reach 1,313 by 2042. The structure is 22 ft (6.6 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNalle Grade Road
CrossesUpper Popash Creek
Location2.5MI East of Slater RD
RouteCounty Highway 0
StateFlorida
Coordinates26.75541, -81.8095
Functional classRural Major Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3.2 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,313 by 2042
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 Nalle Grade Road over Upper Popash Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Nalle Grade Road over Upper Popash Creek 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 July 2023.

How much traffic does Nalle Grade Road over Upper Popash Creek carry?

About 1,250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Nalle Grade Road over Upper Popash Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.2 m) and a deck 31 ft wide.

Who owns Nalle Grade Road over Upper Popash Creek?

It is owned by the County Highway Agency.