US Bridges

SR397 over Toms Bayou

Good

Okaloosa County, Florida · 0.6 Miles South of SR190 · Structure no. 570191

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
684 ft
10 main spans
Daily traffic
7,650
2022 count
Owner
State
State Highway Agency

About this bridge

SR397 over Toms Bayou is a prestressed concrete stringer/multi-beam or girder carrying SR397 over Toms Bayou in Okaloosa County, Florida. It was built in 2021, so it is 4 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 7,650 vehicles a day, roughly 4% of them trucks, projected to reach 13,273 by 2044. The structure is 684 ft (208.5 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR397
CrossesToms Bayou
Location0.6 Miles South of SR190
RouteState Highway 397
StateFlorida
Coordinates30.50319, -86.49397
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating57.9 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHL 93
Structure length684 ft (208.5 m)
Longest span72 ft (21.9 m)
Deck width47 ft (14.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,650 (2022)
Projected traffic13,273 by 2044
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 SR397 over Toms Bayou built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR397 over Toms 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 October 2023.

How much traffic does SR397 over Toms Bayou carry?

About 7,650 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SR397 over Toms Bayou?

The structure is 684 ft (208.5 m) long with a longest span of 72 ft (21.9 m) and a deck 47 ft wide.

Who owns SR397 over Toms Bayou?

It is owned by the State Highway Agency.