US Bridges

SR 27 over Unnamed Stream

Good

Walthall County, Mississippi · 0.2 MI N SR 198 · Structure no. 310002707400940

Built
1948
77 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
64 ft
3 main spans
Daily traffic
5,700
2023 count
Owner
State
State Highway Agency

About this bridge

SR 27 over Unnamed Stream is a concrete culvert carrying SR 27 over Unnamed Stream in Walthall County, Mississippi. It was built in 1948, so it is 77 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 5,700 vehicles a day, roughly 14% of them trucks, projected to reach 5,700 by 2043. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 27
CrossesUnnamed Stream
Location0.2 MI N SR 198
RouteState Highway 27
Coordinates31.11839, -90.14081
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.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.1 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length64 ft (19.5 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 traffic5,700 (2023)
Projected traffic5,700 by 2043
Trucks14%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 27 over Unnamed Stream built?

It was built in 1948, making it 77 years old in 2025.

What condition is SR 27 over Unnamed 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 August 2024.

How much traffic does SR 27 over Unnamed Stream carry?

About 5,700 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 27 over Unnamed Stream?

The structure is 64 ft (19.5 m) long with a longest span of 20 ft (6.1 m).

Who owns SR 27 over Unnamed Stream?

It is owned by the State Highway Agency.