US Bridges

US231 SR75 over Bay Line RR L.L.C.

Fair

Bay County, Florida · 2.8 Mi. S of County Line · Structure no. 460067

Built
1980
45 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
5,882
2022 count
Owner
State
State Highway Agency

About this bridge

US231 SR75 over Bay Line RR L.L.C. is a prestressed concrete stringer/multi-beam or girder carrying US231 SR75 over Bay Line RR L.L.C. in Bay County, Florida. It was built in 1980, so it is 45 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 5,882 vehicles a day, roughly 12% of them trucks, projected to reach 10,204 by 2044. The structure is 156 ft (47.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS231 SR75
CrossesBay Line RR L.L.C.
Location2.8 Mi. S of County Line
RouteU.S. Route 231
CountyBay County
StateFlorida
Coordinates30.52864, -85.40006
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span58 ft (17.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,882 (2022)
Projected traffic10,204 by 2044
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US231 SR75 over Bay Line RR L.L.C. built?

It was built in 1980, making it 45 years old in 2025.

What condition is US231 SR75 over Bay Line RR L.L.C. 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 March 2025.

How much traffic does US231 SR75 over Bay Line RR L.L.C. carry?

About 5,882 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US231 SR75 over Bay Line RR L.L.C.?

The structure is 156 ft (47.5 m) long with a longest span of 58 ft (17.7 m) and a deck 43 ft wide.

Who owns US231 SR75 over Bay Line RR L.L.C.?

It is owned by the State Highway Agency.