US Bridges

Siwell RD over Bch Big Creek

Fair

Hinds County, Mississippi · Sec 10 T 4N R 1W B · Structure no. SA2500000000050

Built
1992
33 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
15,000
2022 count
Owner
County
County Highway Agency

About this bridge

Siwell RD over Bch Big Creek is a concrete culvert carrying Siwell RD over Bch Big Creek in Hinds County, Mississippi. It was built in 1992, so it is 33 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,000 vehicles a day, roughly 8% of them trucks, projected to reach 22,500 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSiwell RD
CrossesBch Big Creek
LocationSec 10 T 4N R 1W B
RouteCounty Highway 411
Coordinates32.20283, -90.28902
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 rating110.1 US tons
Inventory rating81.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2022)
Projected traffic22,500 by 2042
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Siwell RD over Bch Big Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Siwell RD over Bch Big Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Siwell RD over Bch Big Creek carry?

About 15,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Siwell RD over Bch Big Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Siwell RD over Bch Big Creek?

It is owned by the County Highway Agency.