US Bridges

Big Four Road over School House Branch

Good

Stone County, Mississippi · Sec 22 T 2S R11W B · Structure no. SA660000000A016

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
370
2024 count
Owner
County
County Highway Agency

About this bridge

Big Four Road over School House Branch is a concrete culvert carrying Big Four Road over School House Branch in Stone County, Mississippi. It was built in 2014, so it is 11 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 370 vehicles a day, roughly 8% of them trucks, projected to reach 555 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBig Four Road
CrossesSchool House Branch
LocationSec 22 T 2S R11W B
RouteCounty Highway 67
Coordinates30.85554, -89.08399
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating60.5 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2024)
Projected traffic555 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Big Four Road over School House Branch built?

It was built in 2014, making it 11 years old in 2025.

What condition is Big Four Road over School House 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 September 2024.

How much traffic does Big Four Road over School House Branch carry?

About 370 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Big Four Road over School House Branch?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.5 m).

Who owns Big Four Road over School House Branch?

It is owned by the County Highway Agency.