US Bridges

Oak Grove Road over Four Mile Creek

Good

Lamar County, Mississippi · Sec 12 T 4N R14W B · Structure no. SA3700000000079

Built
1970
55 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
8,800
2024 count
Owner
County
County Highway Agency

About this bridge

Oak Grove Road over Four Mile Creek is a concrete culvert carrying Oak Grove Road over Four Mile Creek in Lamar County, Mississippi. It was built in 1970, so it is 55 years old, older 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 8,800 vehicles a day, roughly 8% of them trucks, projected to reach 9,900 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOak Grove Road
CrossesFour Mile Creek
LocationSec 12 T 4N R14W B
RouteCounty Highway 110
Coordinates31.31866, -89.3616
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2024)
Projected traffic9,900 by 2046
Trucks8%
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

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 Oak Grove Road over Four Mile Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Oak Grove Road over Four Mile 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 November 2023.

How much traffic does Oak Grove Road over Four Mile Creek carry?

About 8,800 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Oak Grove Road over Four Mile Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Oak Grove Road over Four Mile Creek?

It is owned by the County Highway Agency.