US Bridges

SR12 over Mule Creek

Good

Liberty County, Florida · 9.0 Miles N. of Bristol · Structure no. 560054

Built
1978
47 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
210 ft
4 main spans
Daily traffic
3,850
2022 count
Owner
State
State Highway Agency

About this bridge

SR12 over Mule Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying SR12 over Mule Creek in Liberty 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 3,850 vehicles a day, roughly 14% of them trucks, projected to reach 6,680 by 2044. The structure is 210 ft (64 m) long and 46 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesSR12
CrossesMule Creek
Location9.0 Miles N. of Bristol
RouteState Highway 12
StateFlorida
Coordinates30.51114, -84.82819
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.8 US tons
Inventory rating53.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span52 ft (16 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2022)
Projected traffic6,680 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR12 over Mule Creek built?

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

What condition is SR12 over Mule 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 September 2023.

How much traffic does SR12 over Mule Creek carry?

About 3,850 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR12 over Mule Creek?

The structure is 210 ft (64 m) long with a longest span of 52 ft (16 m) and a deck 46 ft wide.

Who owns SR12 over Mule Creek?

It is owned by the State Highway Agency.