US Bridges

SR81 over Mill Creek

Fair

Holmes County, Florida · 0.5MI. North of I10 SR8 · Structure no. 520094

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
135 ft
4 main spans
Daily traffic
4,200
2022 count
Owner
State
State Highway Agency

About this bridge

SR81 over Mill Creek is a concrete continuous slab carrying SR81 over Mill Creek in Holmes 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 4,200 vehicles a day, roughly 12% of them trucks, projected to reach 7,287 by 2044. The structure is 135 ft (41.1 m) long and 47 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesSR81
CrossesMill Creek
Location0.5MI. North of I10 SR8
RouteState Highway 81
StateFlorida
Coordinates30.72054, -85.9362
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.7 US tons
Inventory rating43.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length135 ft (41.1 m)
Longest span36 ft (11.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2022)
Projected traffic7,287 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 SR81 over Mill Creek built?

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

What condition is SR81 over Mill Creek 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 May 2023.

How much traffic does SR81 over Mill Creek carry?

About 4,200 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is SR81 over Mill Creek?

The structure is 135 ft (41.1 m) long with a longest span of 36 ft (11.1 m) and a deck 47 ft wide.

Who owns SR81 over Mill Creek?

It is owned by the State Highway Agency.