US Bridges

8th Street N over Moores Creek

Good

St. Lucie County, Florida · 0.3 MI N of Orange Ave. · Structure no. 945013

Built
2009
16 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
120
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th Street N over Moores Creek is a concrete culvert carrying 8th Street N over Moores Creek in St. Lucie County, Florida. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 120 vehicles a day, roughly 1% of them trucks, projected to reach 144 by 2042. The structure is 28 ft (8.4 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries8th Street N
CrossesMoores Creek
Location0.3 MI N of Orange Ave.
RouteCity Street 0
StateFlorida
Coordinates27.4515, -80.33065
Functional classUrban Local

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.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.1 US tons
Inventory rating45.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span28 ft (8.4 m)
Deck width45 ft (13.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic144 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 8th Street N over Moores Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is 8th Street N over Moores Creek 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 2023.

How much traffic does 8th Street N over Moores Creek carry?

About 120 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is 8th Street N over Moores Creek?

The structure is 28 ft (8.4 m) long with a longest span of 28 ft (8.4 m) and a deck 45 ft wide.

Who owns 8th Street N over Moores Creek?

It is owned by the City or Municipal Highway Agency.