US Bridges

Swango Road over Drainage Canal

Good

Sunflower County, Mississippi · Sec 17 T18N R 5W · Structure no. SA6700000000041

Built
1993
32 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
72 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Swango Road over Drainage Canal is a concrete culvert carrying Swango Road over Drainage Canal in Sunflower County, Mississippi. It was built in 1993, so it is 32 years old, younger 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 50 vehicles a day, roughly 8% of them trucks, projected to reach 75 by 2044. The structure is 72 ft (21.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSwango Road
CrossesDrainage Canal
LocationSec 17 T18N R 5W
RouteCounty Highway 149
Coordinates33.40984, -90.73833
Functional classRural Local

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 inspectionSeptember 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 rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length72 ft (21.9 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 traffic50 (2024)
Projected traffic75 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Swango Road over Drainage Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is Swango Road over Drainage Canal 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 September 2024.

How much traffic does Swango Road over Drainage Canal carry?

About 50 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Swango Road over Drainage Canal?

The structure is 72 ft (21.9 m) long with a longest span of 14 ft (4.3 m).

Who owns Swango Road over Drainage Canal?

It is owned by the County Highway Agency.