US Bridges

South Mill Creek over Dry Branch

Good

Lamar County, Mississippi · Sec 31 T 4N R14W · Structure no. SA3700000000085

Built
1997
28 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
600
2024 count
Owner
County
County Highway Agency

About this bridge

South Mill Creek over Dry Branch is a concrete culvert carrying South Mill Creek over Dry Branch in Lamar County, Mississippi. It was built in 1997, so it is 28 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 600 vehicles a day, roughly 10% of them trucks, projected to reach 680 by 2046. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Mill Creek
CrossesDry Branch
LocationSec 31 T 4N R14W
RouteCounty Highway 43
Coordinates31.26234, -89.43324
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.6 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2024)
Projected traffic680 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 South Mill Creek over Dry Branch built?

It was built in 1997, making it 28 years old in 2025.

What condition is South Mill Creek over Dry 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 December 2023.

How much traffic does South Mill Creek over Dry Branch carry?

About 600 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is South Mill Creek over Dry Branch?

The structure is 40 ft (12.2 m) long with a longest span of 13 ft (4.1 m).

Who owns South Mill Creek over Dry Branch?

It is owned by the County Highway Agency.