US Bridges

SR281 over Mulatto Bayou

Good

Santa Rosa County, Florida · 0.8 Miles N. of I10 SR8 · Structure no. 580185

Built
2014
11 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
29,000
2022 count
Owner
State
State Highway Agency

About this bridge

SR281 over Mulatto Bayou is a prestressed concrete stringer/multi-beam or girder carrying SR281 over Mulatto Bayou in Santa Rosa County, Florida. It was built in 2014, so it is 11 years old, younger 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 29,000 vehicles a day, roughly 8% of them trucks, projected to reach 50,315 by 2044. The structure is 120 ft (36.6 m) long and 96 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesSR281
CrossesMulatto Bayou
Location0.8 Miles N. of I10 SR8
RouteState Highway 281
CountySanta Rosa County
StateFlorida
Coordinates30.54611, -87.08722
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width96 ft (29.2 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,000 (2022)
Projected traffic50,315 by 2044
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed23 mi (37 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 SR281 over Mulatto Bayou built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR281 over Mulatto Bayou 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 January 2024.

How much traffic does SR281 over Mulatto Bayou carry?

About 29,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR281 over Mulatto Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 96 ft wide.

Who owns SR281 over Mulatto Bayou?

It is owned by the State Highway Agency.