US Bridges

SR 21 over Creek

Good

Scott County, Mississippi · 4.1 MI S SR 492 · Structure no. 310002106201390

Built
1981
44 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
3,900
2023 count
Owner
State
State Highway Agency

About this bridge

SR 21 over Creek is a concrete culvert carrying SR 21 over Creek in Scott County, Mississippi. It was built in 1981, so it is 44 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 3,900 vehicles a day, roughly 14% of them trucks, projected to reach 4,500 by 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 44.7 mi (72 km).

CarriesSR 21
CrossesCreek
Location4.1 MI S SR 492
RouteState Highway 21
Coordinates32.52776, -89.37546
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 rating62.4 US tons
Inventory rating37.4 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 traffic3,900 (2023)
Projected traffic4,500 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed44.7 mi (72 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 21 over Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is SR 21 over 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 December 2024.

How much traffic does SR 21 over Creek carry?

About 3,900 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 21 over Creek?

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

Who owns SR 21 over Creek?

It is owned by the State Highway Agency.