US Bridges

Sun Oil Road over Branch

Good

Lamar County, Mississippi · Sec 6 T 1N R16W B · Structure no. SA3700000000012

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
450
2023 count
Owner
County
County Highway Agency

About this bridge

Sun Oil Road over Branch is a concrete culvert carrying Sun Oil Road over Branch in Lamar County, Mississippi. It was built in 1987, so it is 38 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 450 vehicles a day, roughly 10% of them trucks, projected to reach 470 by 2045. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSun Oil Road
CrossesBranch
LocationSec 6 T 1N R16W B
RouteCounty Highway 143
CountyLamar County
StateMississippi
Coordinates31.07065, -89.64043
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.5 US tons
Inventory rating30.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length30 ft (9.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic470 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Sun Oil Road over Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is Sun Oil 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 May 2023.

How much traffic does Sun Oil Road over Branch carry?

About 450 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sun Oil Road over Branch?

The structure is 30 ft (9.2 m) long with a longest span of 14 ft (4.3 m).

Who owns Sun Oil Road over Branch?

It is owned by the County Highway Agency.