US Bridges

Mill Run Blvd. over Mill Slough

Good

Osceola County, Florida · 0.3 MI SE of Michigan Ave · Structure no. 925003

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
2,300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mill Run Blvd. over Mill Slough is a concrete culvert carrying Mill Run Blvd. over Mill Slough in Osceola County, Florida. It was built in 1991, so it is 34 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 2,300 vehicles a day, roughly 5% of them trucks, projected to reach 3,990 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMill Run Blvd.
CrossesMill Slough
Location0.3 MI SE of Michigan Ave
RouteCity Street 0
StateFlorida
Coordinates28.33431, -81.38567
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating38.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,990 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Mill Run Blvd. over Mill Slough built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mill Run Blvd. over Mill Slough 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 July 2024.

How much traffic does Mill Run Blvd. over Mill Slough carry?

About 2,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mill Run Blvd. over Mill Slough?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Mill Run Blvd. over Mill Slough?

It is owned by the City or Municipal Highway Agency.