US Bridges

SR 18 over Melton Branch

Good

Jasper County, Mississippi · 1.0 MI W Clarke Cl · Structure no. 310001803115240

Built
1940
85 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Melton Branch is a concrete culvert carrying SR 18 over Melton Branch in Jasper County, Mississippi. It was built in 1940, so it is 85 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 750 vehicles a day, roughly 14% of them trucks, projected to reach 750 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 37.9 mi (61 km).

CarriesSR 18
CrossesMelton Branch
Location1.0 MI W Clarke Cl
RouteState Highway 18
Coordinates32.08278, -88.91442
Functional classRural Minor Arterial

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.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic750 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 18 over Melton Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is SR 18 over Melton 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 SR 18 over Melton Branch carry?

About 750 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 18 over Melton Branch?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m).

Who owns SR 18 over Melton Branch?

It is owned by the State Highway Agency.