US Bridges

CR3030/N Lagoon DR over Unnamed Branch

Fair

Bay County, Florida · 1.1 Miles North of SR 392 · Structure no. 464001

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,100
2023 count
Owner
County
County Highway Agency

About this bridge

CR3030/N Lagoon DR over Unnamed Branch is a concrete culvert carrying CR3030/N Lagoon DR over Unnamed Branch in Bay 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 5,100 vehicles a day, roughly 10% of them trucks, projected to reach 8,848 by 2043. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR3030/N Lagoon DR
CrossesUnnamed Branch
Location1.1 Miles North of SR 392
RouteCounty Highway 3030
StateFlorida
Coordinates30.16667, -85.77833
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 rating48 US tons
Inventory rating43 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2023)
Projected traffic8,848 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 CR3030/N Lagoon DR over Unnamed Branch built?

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

What condition is CR3030/N Lagoon DR over Unnamed Branch 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 September 2024.

How much traffic does CR3030/N Lagoon DR over Unnamed Branch carry?

About 5,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CR3030/N Lagoon DR over Unnamed Branch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3.1 m).

Who owns CR3030/N Lagoon DR over Unnamed Branch?

It is owned by the County Highway Agency.