Structure 570019 · Okaloosa County, FL

Sr397 over Toms Bayou

Carries Sr397 over Toms Bayou, 0.6mi. South Of Sr190.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT684 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

684 ft end to end, longest span 36 ft: about 1.9 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1954rebuilt 2021
Length684.1 ft208.5 m
Daily traffic7,650counted 2022
Last inspectedApril 2023every 24 months

Location

StateFlorida
CountyOkaloosa
Location0.6mi. South Of Sr190
CarriesSr397
CrossesToms Bayou
Coordinates30.50315, -86.49408

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length684.1 ft (208.5 m)
Max Span36.1 ft (11 m)
Deck Width51.2 ft (15.6 m)
Deck Area3252.6 sq m
Main Spans19
Year Built1954 (reconstructed 2021)

Traffic

Avg Daily Traffic7,650 (2022)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number570019

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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