US Bridges

Smithburg Road over Branch

Good

Walthall County, Mississippi · Sec 24 T 1N R 9E · Structure no. SA7400000000144

Built
2017
8 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
38 ft
2 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Smithburg Road over Branch is a concrete channel beam carrying Smithburg Road over Branch in Walthall County, Mississippi. It was built in 2017, so it is 8 years old, younger than the Mississippi average of 38.9 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 30 vehicles a day, roughly 8% of them trucks, projected to reach 40 by 2045. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesSmithburg Road
CrossesBranch
LocationSec 24 T 1N R 9E
RouteCounty Highway 3
Coordinates31.04194, -90.24775
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum 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 rating65.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic40 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Smithburg Road over Branch built?

It was built in 2017, making it 8 years old in 2025.

What condition is Smithburg Road over Branch 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 March 2023.

How much traffic does Smithburg Road over Branch carry?

About 30 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Smithburg Road over Branch?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 24 ft wide.

Who owns Smithburg Road over Branch?

It is owned by the County Highway Agency.