US Bridges

SR 18 over Stream

Good

Jasper County, Mississippi · 5.9 MI W SR 503 · Structure no. 310001803113530

Built
1980
45 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
670
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Stream is a concrete culvert carrying SR 18 over Stream in Jasper County, Mississippi. It was built in 1980, so it is 45 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 670 vehicles a day, roughly 22% of them trucks, projected to reach 670 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 44.1 mi (71 km).

CarriesSR 18
CrossesStream
Location5.9 MI W SR 503
RouteState Highway 18
Coordinates32.05302, -89.12762
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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating24.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2023)
Projected traffic670 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 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 Stream built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 18 over Stream 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 Stream carry?

About 670 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is SR 18 over Stream?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns SR 18 over Stream?

It is owned by the State Highway Agency.