US Bridges

SR 21 over Sand Creek

GoodPosted for load

Noxubee County, Mississippi · 0.8 MI S SR 39 · Structure no. 310002105207530

Built
1985
40 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
610
2023 count
Owner
State
State Highway Agency

About this bridge

SR 21 over Sand Creek is a prestressed concrete slab carrying SR 21 over Sand Creek in Noxubee County, Mississippi. It was built in 1985, so it is 40 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. Its operating status is: posted for load restriction.

It carries about 610 vehicles a day, roughly 25% of them trucks, projected to reach 610 by 2043. The structure is 93 ft (28.3 m) long and 37 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesSR 21
CrossesSand Creek
Location0.8 MI S SR 39
RouteState Highway 21
Coordinates32.97044, -88.64072
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2023)
Projected traffic610 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 Sand Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is SR 21 over Sand 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 November 2023.

How much traffic does SR 21 over Sand Creek carry?

About 610 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is SR 21 over Sand Creek?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 37 ft wide.

Who owns SR 21 over Sand Creek?

It is owned by the State Highway Agency.